move 3rd-party librarys into libs/ and add built-in honeysuckle

20 files changed, 2059 insertions, 0 deletions

diff --git a/libs/assimp/test/unit/ImportExport/Assxml/utAssxmlImportExport.cpp b/libs/assimp/test/unit/ImportExport/Assxml/utAssxmlImportExport.cpp
new file mode 100644
index 0000000..c10d91b
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/Assxml/utAssxmlImportExport.cpp
@@ -0,0 +1,76 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2019, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "AbstractImportExportBase.h"
+#include "SceneDiffer.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+#include <assimp/Exporter.hpp>
+
+using namespace Assimp;
+
+class utAssxmlImportExport : public AbstractImportExportBase {
+public:
+	bool importerTest() override {
+		return true;
+    }
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+	bool exporterTest() override {
+		Assimp::Importer importer;
+		const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/spider.obj", aiProcess_ValidateDataStructure);
+		EXPECT_NE(scene, nullptr );
+
+        ::Assimp::Exporter exporter;
+		return AI_SUCCESS == exporter.Export(scene, "assxml", ASSIMP_TEST_MODELS_DIR "/OBJ/spider_out.assxml");
+    }
+#endif
+};
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+TEST_F(utAssxmlImportExport, exportAssxmlTest) {
+	EXPECT_TRUE(exporterTest());
+}
+
+#endif
diff --git a/libs/assimp/test/unit/ImportExport/IRR/utIrrImportExport.cpp b/libs/assimp/test/unit/ImportExport/IRR/utIrrImportExport.cpp
new file mode 100644
index 0000000..eaa4c8f
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/IRR/utIrrImportExport.cpp
@@ -0,0 +1,66 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2020, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utIrrImportExport : public AbstractImportExportBase {
+public:
+	virtual bool importerTest() {
+		Assimp::Importer importer;
+		const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/IRR/box.irr", aiProcess_ValidateDataStructure);
+		return nullptr != scene;
+	}
+};
+
+TEST_F(utIrrImportExport, importSimpleIrrTest) {
+	EXPECT_TRUE(importerTest());
+}
+
+TEST_F(utIrrImportExport, importSGIrrTest) {
+	Assimp::Importer importer;
+	const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/IRR/dawfInCellar_SameHierarchy.irr", aiProcess_ValidateDataStructure);
+	EXPECT_NE( nullptr,scene);
+}
diff --git a/libs/assimp/test/unit/ImportExport/MDL/MDLHL1TestFiles.h b/libs/assimp/test/unit/ImportExport/MDL/MDLHL1TestFiles.h
new file mode 100644
index 0000000..3c0630f
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/MDL/MDLHL1TestFiles.h
@@ -0,0 +1,57 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file MDLHL1TestFiles.h
+ *  @brief Definitions for Half-Life 1 MDL loader tests.
+ */
+
+#ifndef AI_MDLHL1TESTFILES_INCLUDED
+#define AI_MDLHL1TESTFILES_INCLUDED
+
+#ifndef ASSIMP_TEST_MDL_HL1_MODELS_DIR
+#define ASSIMP_TEST_MDL_HL1_MODELS_DIR ASSIMP_TEST_MODELS_DIR"/MDL/MDL (HL1)/"
+#endif
+
+#ifndef MDL_HL1_FILE_MAN
+#define MDL_HL1_FILE_MAN ASSIMP_TEST_MDL_HL1_MODELS_DIR "man.mdl"
+#endif
+
+#endif // AI_MDLHL1TESTFILES_INCLUDED
diff --git a/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp b/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp
new file mode 100644
index 0000000..02969e1
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_ImportSettings.cpp
@@ -0,0 +1,228 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file utMDLImporter_HL1_ImportSettings.cpp
+ *  @brief Half-Life 1 MDL loader import settings tests.
+ */
+
+#include "AbstractImportExportBase.h"
+#include "AssetLib/MDL/HalfLife/HL1ImportDefinitions.h"
+#include "MDLHL1TestFiles.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+#include <functional>
+#include <initializer_list>
+
+using namespace Assimp;
+
+class utMDLImporter_HL1_ImportSettings : public ::testing::Test {
+
+public:
+    // Test various import settings scenarios.
+
+    void importSettings() {
+
+        /* Verify that animations are *NOT* imported when
+           'Read animations' is disabled. */
+        load_with_import_setting_bool(
+                MDL_HL1_FILE_MAN,
+                AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATIONS,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    EXPECT_EQ(0u, scene->mNumAnimations);
+                    EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_INFOS));
+                    EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_GROUPS));
+                    EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_TRANSITION_GRAPH));
+
+                    expect_global_info_eq<int>(scene, { { 0, "NumSequences" },
+                                                              { 0, "NumTransitionNodes" } });
+                });
+
+        /* Verify that blend controllers info is *NOT* imported when
+           'Read blend controllers' is disabled. */
+        load_with_import_setting_bool(
+                MDL_HL1_FILE_MAN,
+                AI_CONFIG_IMPORT_MDL_HL1_READ_BLEND_CONTROLLERS,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    EXPECT_NE(0u, scene->mNumAnimations);
+
+                    const aiNode *sequence_infos = scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_INFOS);
+                    EXPECT_NE(nullptr, sequence_infos);
+
+                    for (unsigned int i = 0; i < sequence_infos->mNumChildren; ++i)
+                        EXPECT_EQ(nullptr, sequence_infos->mChildren[i]->FindNode(AI_MDL_HL1_NODE_BLEND_CONTROLLERS));
+
+                    expect_global_info_eq(scene, 0, "NumBlendControllers");
+                });
+
+        /* Verify that animation events are *NOT* imported when
+           'Read animation events' is disabled. */
+        load_with_import_setting_bool(
+                MDL_HL1_FILE_MAN,
+                AI_CONFIG_IMPORT_MDL_HL1_READ_ANIMATION_EVENTS,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    EXPECT_NE(0u, scene->mNumAnimations);
+
+                    const aiNode *sequence_infos = scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_INFOS);
+                    EXPECT_NE(nullptr, sequence_infos);
+
+                    for (unsigned int i = 0; i < sequence_infos->mNumChildren; ++i)
+                        EXPECT_EQ(nullptr, sequence_infos->mChildren[i]->FindNode(AI_MDL_HL1_NODE_ANIMATION_EVENTS));
+                });
+
+        /* Verify that sequence transitions info is read when
+           'Read sequence transitions' is enabled. */
+        load_with_import_setting_bool(
+                ASSIMP_TEST_MDL_HL1_MODELS_DIR "sequence_transitions.mdl",
+                AI_CONFIG_IMPORT_MDL_HL1_READ_SEQUENCE_TRANSITIONS,
+                true, // Set config value to true.
+                [&](const aiScene *scene) {
+                    EXPECT_NE(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_TRANSITION_GRAPH));
+                    expect_global_info_eq(scene, 4, "NumTransitionNodes");
+                });
+
+        /* Verify that sequence transitions info is *NOT* read when
+           'Read sequence transitions' is disabled. */
+        load_with_import_setting_bool(
+                ASSIMP_TEST_MDL_HL1_MODELS_DIR "sequence_transitions.mdl",
+                AI_CONFIG_IMPORT_MDL_HL1_READ_SEQUENCE_TRANSITIONS,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_SEQUENCE_TRANSITION_GRAPH));
+                    expect_global_info_eq(scene, 0, "NumTransitionNodes");
+                });
+
+        /* Verify that bone controllers info is *NOT* read when
+           'Read bone controllers' is disabled. */
+        load_with_import_setting_bool(
+                MDL_HL1_FILE_MAN,
+                AI_CONFIG_IMPORT_MDL_HL1_READ_BONE_CONTROLLERS,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_BONE_CONTROLLERS));
+                    expect_global_info_eq(scene, 0, "NumBoneControllers");
+                });
+
+        /* Verify that attachments info is *NOT* read when
+           'Read attachments' is disabled. */
+        load_with_import_setting_bool(
+                MDL_HL1_FILE_MAN,
+                AI_CONFIG_IMPORT_MDL_HL1_READ_ATTACHMENTS,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_ATTACHMENTS));
+                    expect_global_info_eq(scene, 0, "NumAttachments");
+                });
+
+        /* Verify that hitboxes info is *NOT* read when
+           'Read hitboxes' is disabled. */
+        load_with_import_setting_bool(
+                MDL_HL1_FILE_MAN,
+                AI_CONFIG_IMPORT_MDL_HL1_READ_HITBOXES,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    EXPECT_EQ(nullptr, scene->mRootNode->FindNode(AI_MDL_HL1_NODE_HITBOXES));
+                    expect_global_info_eq(scene, 0, "NumHitboxes");
+                });
+
+        /* Verify that misc global info is *NOT* read when
+           'Read misc global info' is disabled. */
+        load_with_import_setting_bool(
+                MDL_HL1_FILE_MAN,
+                AI_CONFIG_IMPORT_MDL_HL1_READ_MISC_GLOBAL_INFO,
+                false, // Set config value to false.
+                [&](const aiScene *scene) {
+                    aiNode *global_info = get_global_info(scene);
+                    EXPECT_NE(nullptr, global_info);
+                    aiVector3D temp;
+                    EXPECT_FALSE(global_info->mMetaData->Get("EyePosition", temp));
+                });
+    }
+
+private:
+    void load_with_import_setting_bool(
+            const char *file_path,
+            const char *setting_key,
+            bool setting_value,
+            std::function<void(const aiScene *)> &&func) {
+        Assimp::Importer importer;
+        importer.SetPropertyBool(setting_key, setting_value);
+        const aiScene *scene = importer.ReadFile(file_path, aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+        func(scene);
+    }
+
+    inline static aiNode *get_global_info(const aiScene *scene) {
+        return scene->mRootNode->FindNode(AI_MDL_HL1_NODE_GLOBAL_INFO);
+    }
+
+    template <typename T>
+    static void expect_global_info_eq(
+            const aiScene *scene,
+            T expected_value,
+            const char *key_name) {
+        aiNode *global_info = get_global_info(scene);
+        EXPECT_NE(nullptr, global_info);
+        T temp;
+        EXPECT_TRUE(global_info->mMetaData->Get(key_name, temp));
+        EXPECT_EQ(expected_value, temp);
+    }
+
+    template <typename T>
+    static void expect_global_info_eq(const aiScene *scene,
+            std::initializer_list<std::pair<T, const char *>> p_kv) {
+        aiNode *global_info = get_global_info(scene);
+        EXPECT_NE(nullptr, global_info);
+        for (auto it = p_kv.begin(); it != p_kv.end(); ++it) {
+            T temp;
+            EXPECT_TRUE(global_info->mMetaData->Get(it->second, temp));
+            EXPECT_EQ(it->first, temp);
+        }
+    }
+};
+
+TEST_F(utMDLImporter_HL1_ImportSettings, importSettings) {
+    importSettings();
+}
diff --git a/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_Materials.cpp b/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_Materials.cpp
new file mode 100644
index 0000000..c47667e
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_Materials.cpp
@@ -0,0 +1,134 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file utMDLImporter_HL1_Materials.cpp
+ *  @brief Half-Life 1 MDL loader materials tests.
+ */
+
+#include "AbstractImportExportBase.h"
+#include "AssetLib/MDL/HalfLife/HL1ImportDefinitions.h"
+#include "MDLHL1TestFiles.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utMDLImporter_HL1_Materials : public ::testing::Test {
+
+public:
+    /* Given an MDL model with a texture flagged as flatshade,
+       verify that the imported model has a flat shading model. */
+    void flatShadeTexture() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "chrome_sphere.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+        EXPECT_NE(nullptr, scene->mMaterials);
+
+        aiShadingMode shading_mode;
+        scene->mMaterials[0]->Get(AI_MATKEY_SHADING_MODEL, shading_mode);
+        EXPECT_EQ(aiShadingMode_Flat, shading_mode);
+    }
+
+    /* Given an MDL model with a chrome texture, verify that
+       the imported model has a chrome material. */
+    void chromeTexture() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "chrome_sphere.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+        EXPECT_NE(nullptr, scene->mMaterials);
+
+        int chrome;
+        scene->mMaterials[0]->Get(AI_MDL_HL1_MATKEY_CHROME(aiTextureType_DIFFUSE, 0), chrome);
+        EXPECT_EQ(1, chrome);
+    }
+
+    /* Given an MDL model with an additive texture, verify that
+       the imported model has an additive material. */
+    void additiveBlendTexture() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "blend_additive.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+        EXPECT_NE(nullptr, scene->mMaterials);
+
+        aiBlendMode blend_mode;
+        scene->mMaterials[0]->Get(AI_MATKEY_BLEND_FUNC, blend_mode);
+        EXPECT_EQ(aiBlendMode_Additive, blend_mode);
+    }
+
+    /* Given an MDL model with a color masked texture, verify that
+       the imported model has a color masked material. Ensure too
+       that the transparency color is the correct one. */
+    void textureWithColorMask() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "alpha_test.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+        EXPECT_NE(nullptr, scene->mMaterials);
+
+        int texture_flags;
+        scene->mMaterials[0]->Get(AI_MATKEY_TEXFLAGS_DIFFUSE(0), texture_flags);
+        EXPECT_EQ(aiTextureFlags_UseAlpha, texture_flags);
+
+        // The model has only one texture, a 256 color bitmap with
+        // a palette. Pure blue is the last color in the palette,
+        // and should be the transparency color.
+        aiColor3D transparency_color;
+        scene->mMaterials[0]->Get(AI_MATKEY_COLOR_TRANSPARENT, transparency_color);
+        EXPECT_EQ(aiColor3D(0, 0, 255), transparency_color);
+    }
+};
+
+TEST_F(utMDLImporter_HL1_Materials, flatShadeTexture) {
+    flatShadeTexture();
+}
+
+TEST_F(utMDLImporter_HL1_Materials, chromeTexture) {
+    chromeTexture();
+}
+
+TEST_F(utMDLImporter_HL1_Materials, additiveBlendTexture) {
+    additiveBlendTexture();
+}
+
+TEST_F(utMDLImporter_HL1_Materials, textureWithColorMask) {
+    textureWithColorMask();
+}
diff --git a/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp b/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp
new file mode 100644
index 0000000..4420727
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/MDL/utMDLImporter_HL1_Nodes.cpp
@@ -0,0 +1,455 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+/** @file utMDLImporter_HL1_Nodes.cpp
+ *  @brief Half-Life 1 MDL loader nodes tests.
+ */
+
+#include "AbstractImportExportBase.h"
+#include "AssetLib/MDL/HalfLife/HL1ImportDefinitions.h"
+#include "MDLHL1TestFiles.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utMDLImporter_HL1_Nodes : public ::testing::Test {
+
+public:
+    /**
+    * @note The following tests require a basic understanding
+    * of the SMD format. For more information about SMD format,
+    * please refer to the SMD importer or go to VDC
+    * (Valve Developer Community).
+    */
+
+    /*  Given a model with bones that have empty names,
+        verify that all the bones of the imported model
+        have unique and no empty names.
+
+        ""        <----+---- empty names
+        ""        <----+
+        ""        <----+
+        "Bone_3"       |
+        ""        <----+
+        "Bone_2"       |
+        "Bone_5"       |
+        ""        <----+
+        ""        <----+
+    */
+    void emptyBonesNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "unnamed_bones.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::string> expected_bones_names = {
+            "Bone",
+            "Bone_0",
+            "Bone_1",
+            "Bone_3",
+            "Bone_4",
+            "Bone_2",
+            "Bone_5",
+            "Bone_6",
+            "Bone_7"
+        };
+
+        expect_named_children(scene, AI_MDL_HL1_NODE_BONES, expected_bones_names);
+    }
+
+    /*  Given a model with bodyparts that have empty names,
+        verify that the imported model contains bodyparts with
+        unique and no empty names.
+
+        $body ""           <----+---- empty names
+        $body "Bodypart_1"      |
+        $body "Bodypart_5"      |
+        $body "Bodypart_6"      |
+        $body ""           <----+
+        $body "Bodypart_2"      |
+        $body ""           <----+
+        $body "Bodypart_3"      |
+        $body ""           <----+
+    */
+    void emptyBodypartsNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "unnamed_bodyparts.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::string> expected_bodyparts_names = {
+            "Bodypart",
+            "Bodypart_1",
+            "Bodypart_5",
+            "Bodypart_6",
+            "Bodypart_0",
+            "Bodypart_2",
+            "Bodypart_4",
+            "Bodypart_3",
+            "Bodypart_7"
+        };
+
+        expect_named_children(scene, AI_MDL_HL1_NODE_BODYPARTS, expected_bodyparts_names);
+    }
+
+    /*  Given a model with bodyparts that have duplicate names,
+        verify that the imported model contains bodyparts with
+        unique and no duplicate names.
+
+        $body "Bodypart"   <-----+
+        $body "Bodypart_1" <--+  |
+        $body "Bodypart_2"    |  |
+        $body "Bodypart1"     |  |
+        $body "Bodypart"   ---|--+
+        $body "Bodypart_1" ---+  |
+        $body "Bodypart2"        |
+        $body "Bodypart"   ------+
+        $body "Bodypart_4"
+    */
+    void duplicateBodypartsNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "duplicate_bodyparts.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::string> expected_bodyparts_names = {
+            "Bodypart",
+            "Bodypart_1",
+            "Bodypart_2",
+            "Bodypart1",
+            "Bodypart_0",
+            "Bodypart_1_0",
+            "Bodypart2",
+            "Bodypart_3",
+            "Bodypart_4"
+        };
+
+        expect_named_children(scene, AI_MDL_HL1_NODE_BODYPARTS, expected_bodyparts_names);
+    }
+
+    /*  Given a model with several bodyparts that contains multiple
+        sub models with the same file name, verify for each bodypart
+        sub model of the imported model that they have a unique name.
+
+        $bodygroup "first_bodypart"
+        {
+            studio "triangle"   <------+ duplicate file names.
+            studio "triangle"   -------+
+        }                              |
+                                       |
+        $bodygroup "second_bodypart"   |
+        {                              |
+            studio "triangle"   -------+ same as first bodypart, but with same file.
+            studio "triangle"   -------+
+        }
+
+        $bodygroup "last_bodypart"
+        {
+            studio "triangle2"  <------+ duplicate names.
+            studio "triangle2"  -------+
+        }
+    */
+    void duplicateSubModelsNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "duplicate_submodels.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::vector<std::string>> expected_bodypart_sub_models_names = {
+            {
+                    "triangle",
+                    "triangle_0",
+            },
+            {
+                    "triangle_1",
+                    "triangle_2",
+            },
+            {
+                    "triangle2",
+                    "triangle2_0",
+            }
+        };
+
+        const aiNode *bodyparts_node = scene->mRootNode->FindNode(AI_MDL_HL1_NODE_BODYPARTS);
+        EXPECT_NE(nullptr, bodyparts_node);
+        EXPECT_EQ(3u, bodyparts_node->mNumChildren);
+        for (unsigned int i = 0; i < bodyparts_node->mNumChildren; ++i) {
+            expect_named_children(bodyparts_node->mChildren[i],
+                    expected_bodypart_sub_models_names[i]);
+        }
+    }
+
+    /*  Given a model with sequences that have duplicate names, verify
+        that each sequence from the imported model has a unique
+        name.
+
+        $sequence "idle_1" <-------+
+        $sequence "idle"   <----+  |
+        $sequence "idle_2"      |  |
+        $sequence "idle"   -----+  |
+        $sequence "idle_0"      |  |
+        $sequence "idle_1" -----|--+
+        $sequence "idle_3"      |
+        $sequence "idle"   -----+
+        $sequence "idle_7"
+    */
+    void duplicateSequenceNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "duplicate_sequences.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::string> expected_sequence_names = {
+            "idle_1",
+            "idle",
+            "idle_2",
+            "idle_4",
+            "idle_0",
+            "idle_1_0",
+            "idle_3",
+            "idle_5",
+            "idle_7"
+        };
+
+        expect_named_children(scene, AI_MDL_HL1_NODE_SEQUENCE_INFOS, expected_sequence_names);
+    }
+
+    /*  Given a model with sequences that have empty names, verify
+        that each sequence from the imported model has a unique
+        name.
+
+        $sequence ""            <----+---- empty names
+        $sequence "Sequence_1"       |
+        $sequence ""            <----+
+        $sequence "Sequence_4"       |
+        $sequence ""            <----+
+        $sequence "Sequence_8"       |
+        $sequence ""            <----+
+        $sequence "Sequence_2"       |
+        $sequence ""            <----+
+    */
+    void emptySequenceNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "unnamed_sequences.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::string> expected_sequence_names = {
+            "Sequence",
+            "Sequence_1",
+            "Sequence_0",
+            "Sequence_4",
+            "Sequence_3",
+            "Sequence_8",
+            "Sequence_5",
+            "Sequence_2",
+            "Sequence_6"
+        };
+
+        expect_named_children(scene, AI_MDL_HL1_NODE_SEQUENCE_INFOS, expected_sequence_names);
+    }
+
+    /*  Given a model with sequence groups that have duplicate names,
+        verify that each sequence group from the imported model has
+        a unique name.
+
+        "default"
+        $sequencegroup "SequenceGroup"    <----+
+        $sequencegroup "SequenceGroup_1"       |
+        $sequencegroup "SequenceGroup_5"  <----|--+
+        $sequencegroup "SequenceGroup"    -----+  |
+        $sequencegroup "SequenceGroup_0"       |  |
+        $sequencegroup "SequenceGroup"    -----+  |
+        $sequencegroup "SequenceGroup_5"  --------+
+        $sequencegroup "SequenceGroup_6"
+        $sequencegroup "SequenceGroup_2"
+    */
+    void duplicateSequenceGroupNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "duplicate_sequence_groups/duplicate_sequence_groups.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::string> expected_sequence_names = {
+            "default",
+            "SequenceGroup",
+            "SequenceGroup_1",
+            "SequenceGroup_5",
+            "SequenceGroup_3",
+            "SequenceGroup_0",
+            "SequenceGroup_4",
+            "SequenceGroup_5_0",
+            "SequenceGroup_6",
+            "SequenceGroup_2"
+        };
+
+        expect_named_children(scene, AI_MDL_HL1_NODE_SEQUENCE_GROUPS, expected_sequence_names);
+    }
+
+    /*  Given a model with sequence groups that have empty names,
+        verify that each sequence group from the imported model has
+        a unique name.
+
+        "default"
+        $sequencegroup ""                 <----+---- empty names
+        $sequencegroup "SequenceGroup_2"       |
+        $sequencegroup "SequenceGroup_6"       |
+        $sequencegroup ""                 <----+
+        $sequencegroup ""                 <----+
+        $sequencegroup "SequenceGroup_1"       |
+        $sequencegroup "SequenceGroup_5"       |
+        $sequencegroup ""                 <----+
+        $sequencegroup "SequenceGroup_4"
+    */
+    void emptySequenceGroupNames() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "unnamed_sequence_groups/unnamed_sequence_groups.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        const std::vector<std::string> expected_sequence_names = {
+            "default",
+            "SequenceGroup",
+            "SequenceGroup_2",
+            "SequenceGroup_6",
+            "SequenceGroup_0",
+            "SequenceGroup_3",
+            "SequenceGroup_1",
+            "SequenceGroup_5",
+            "SequenceGroup_7",
+            "SequenceGroup_4"
+        };
+
+        expect_named_children(scene, AI_MDL_HL1_NODE_SEQUENCE_GROUPS, expected_sequence_names);
+    }
+
+    /*  Verify that mOffsetMatrix applies the correct
+        inverse bind pose transform. */
+    void offsetMatrixUnappliesTransformations() {
+
+        const float TOLERANCE = 0.01f;
+
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(MDL_HL1_FILE_MAN, aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+
+        aiNode *scene_bones_node = scene->mRootNode->FindNode(AI_MDL_HL1_NODE_BONES);
+
+        const aiMatrix4x4 identity_matrix;
+
+        for (unsigned int i = 0; i < scene->mNumMeshes; ++i) {
+            aiMesh *scene_mesh = scene->mMeshes[i];
+            for (unsigned int j = 0; j < scene_mesh->mNumBones; ++j) {
+                aiBone *scene_mesh_bone = scene_mesh->mBones[j];
+
+                // Store local node transforms.
+                aiNode *n = scene_bones_node->FindNode(scene_mesh_bone->mName);
+                std::vector<aiMatrix4x4> bone_matrices = { n->mTransformation };
+                while (n->mParent != scene->mRootNode) {
+                    n = n->mParent;
+                    bone_matrices.push_back(n->mTransformation);
+                }
+
+                // Compute absolute node transform.
+                aiMatrix4x4 transform;
+                for (auto it = bone_matrices.rbegin(); it != bone_matrices.rend(); ++it)
+                    transform *= *it;
+
+                // Unapply the transformation using the offset matrix.
+                aiMatrix4x4 unapplied_transform = scene_mesh_bone->mOffsetMatrix * transform;
+
+                // Ensure that we have, approximately, the identity matrix.
+                expect_equal_matrices(identity_matrix, unapplied_transform, TOLERANCE);
+            }
+        }
+    }
+
+private:
+    void expect_named_children(const aiNode *parent_node, const std::vector<std::string> &expected_names) {
+        EXPECT_NE(nullptr, parent_node);
+        EXPECT_EQ(expected_names.size(), parent_node->mNumChildren);
+
+        for (unsigned int i = 0; i < parent_node->mNumChildren; ++i)
+            EXPECT_EQ(expected_names[i], parent_node->mChildren[i]->mName.C_Str());
+    }
+
+    void expect_named_children(const aiScene *scene, const char *node_name, const std::vector<std::string> &expected_names) {
+        expect_named_children(scene->mRootNode->FindNode(node_name), expected_names);
+    }
+
+    void expect_equal_matrices(const aiMatrix4x4 &expected, const aiMatrix4x4 &actual, float abs_error) {
+        for (int i = 0; i < 4; ++i) {
+            for (int j = 0; j < 4; ++j)
+                EXPECT_NEAR(expected[i][j], actual[i][j], abs_error);
+        }
+    }
+};
+
+TEST_F(utMDLImporter_HL1_Nodes, emptyBonesNames) {
+    emptyBonesNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, emptyBodypartsNames) {
+    emptyBodypartsNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, duplicateBodypartsNames) {
+    duplicateBodypartsNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, duplicateSubModelsNames) {
+    duplicateSubModelsNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, emptySequenceNames) {
+    emptySequenceNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, duplicateSequenceNames) {
+    duplicateSequenceNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, emptySequenceGroupNames) {
+    emptySequenceGroupNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, duplicateSequenceGroupNames) {
+    duplicateSequenceGroupNames();
+}
+
+TEST_F(utMDLImporter_HL1_Nodes, offsetMatrixUnappliesTransformations) {
+    offsetMatrixUnappliesTransformations();
+}
diff --git a/libs/assimp/test/unit/ImportExport/RAW/utRAWImportExport.cpp b/libs/assimp/test/unit/ImportExport/RAW/utRAWImportExport.cpp
new file mode 100644
index 0000000..bdd7f85
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/RAW/utRAWImportExport.cpp
@@ -0,0 +1,64 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utRAWImportExport : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/RAW/Wuson.raw", aiProcess_ValidateDataStructure);
+#ifndef ASSIMP_BUILD_NO_RAW_IMPORTER
+        return nullptr != scene;
+#else
+        return nullptr == scene;
+#endif
+    }
+};
+
+TEST_F(utRAWImportExport, importSimpleRAWTest) {
+    EXPECT_TRUE(importerTest());
+}
diff --git a/libs/assimp/test/unit/ImportExport/Terragen/utTerragenImportExport.cpp b/libs/assimp/test/unit/ImportExport/Terragen/utTerragenImportExport.cpp
new file mode 100644
index 0000000..6432dbf
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/Terragen/utTerragenImportExport.cpp
@@ -0,0 +1,60 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+class utTerragenImportExport : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+        /*Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/TER/RealisticTerrain.ter", aiProcess_ValidateDataStructure);
+        return nullptr != scene;*/
+        return true;
+    }
+};
+
+TEST_F(utTerragenImportExport, importX3DFromFileTest) {
+    EXPECT_TRUE(importerTest());
+}
diff --git a/libs/assimp/test/unit/ImportExport/utAssjsonImportExport.cpp b/libs/assimp/test/unit/ImportExport/utAssjsonImportExport.cpp
new file mode 100644
index 0000000..3470874
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utAssjsonImportExport.cpp
@@ -0,0 +1,80 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Exporter.hpp>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+class utAssjsonImportExport : public AbstractImportExportBase {
+public:
+    bool exporterTest() override {
+        Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OBJ/spider.obj", aiProcess_ValidateDataStructure);
+
+        Exporter exporter;
+        aiReturn res = exporter.Export(scene, "assjson", "./spider_test.json");
+        if (aiReturn_SUCCESS != res) {
+            return false;
+        }
+
+        Assimp::ExportProperties exportProperties;
+        exportProperties.SetPropertyBool("JSON_SKIP_WHITESPACES", true);
+        aiReturn resNoWhitespace = exporter.Export(scene, "assjson", "./spider_test_nowhitespace.json", 0u, &exportProperties);
+        if (aiReturn_SUCCESS != resNoWhitespace) {
+            return false;
+        }
+
+        return true;
+    }
+};
+
+TEST_F(utAssjsonImportExport, exportTest) {
+    EXPECT_TRUE(exporterTest());
+}
+
+#endif // ASSIMP_BUILD_NO_EXPORT
diff --git a/libs/assimp/test/unit/ImportExport/utCOBImportExport.cpp b/libs/assimp/test/unit/ImportExport/utCOBImportExport.cpp
new file mode 100644
index 0000000..187f16e
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utCOBImportExport.cpp
@@ -0,0 +1,99 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+TEST(utCOBImporter, importDwarfASCII) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/dwarf_ascii.cob", aiProcess_ValidateDataStructure);
+    // FIXME: this is wrong, it should succeed
+    // change to ASSERT_NE after it's been fixed
+    ASSERT_EQ(nullptr, scene);
+}
+
+TEST(utCOBImporter, importDwarf) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/dwarf.cob", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utCOBImporter, importMoleculeASCII) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/molecule_ascii.cob", aiProcess_ValidateDataStructure);
+    // FIXME: this is wrong, it should succeed
+    // change to ASSERT_NE after it's been fixed
+    ASSERT_EQ(nullptr, scene);
+}
+
+TEST(utCOBImporter, importMolecule) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/molecule.cob", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utCOBImporter, importSpider43ASCII) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/spider_4_3_ascii.cob", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utCOBImporter, importSpider43) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/spider_4_3.cob", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utCOBImporter, importSpider66ASCII) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/spider_6_6_ascii.cob", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utCOBImporter, importSpider66) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/COB/spider_6_6.cob", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
diff --git a/libs/assimp/test/unit/ImportExport/utExporter.cpp b/libs/assimp/test/unit/ImportExport/utExporter.cpp
new file mode 100644
index 0000000..9c5ca1c
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utExporter.cpp
@@ -0,0 +1,107 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include "UnitTestPCH.h"
+
+#include <assimp/Exporter.hpp>
+#include <assimp/ProgressHandler.hpp>
+
+using namespace Assimp;
+
+#ifndef ASSIMP_BUILD_NO_EXPORT
+
+class TestProgressHandler : public ProgressHandler {
+public:
+    TestProgressHandler() :
+            ProgressHandler(),
+            mPercentage(0.f) {
+        // empty
+    }
+
+    virtual ~TestProgressHandler() {
+        // empty
+    }
+
+    bool Update(float percentage = -1.f) override {
+        mPercentage = percentage;
+        return true;
+    }
+    float mPercentage;
+};
+
+class ExporterTest : public ::testing::Test {
+    // empty
+};
+
+TEST_F(ExporterTest, ProgressHandlerTest) {
+    Exporter exporter;
+    TestProgressHandler *ph(new TestProgressHandler);
+    exporter.SetProgressHandler(ph);
+}
+
+// Make sure all the registered exporters have useful descriptions
+TEST_F(ExporterTest, ExporterIdTest) {
+    Exporter exporter;
+    size_t exportFormatCount = exporter.GetExportFormatCount();
+    EXPECT_NE(0u, exportFormatCount) << "No registered exporters";
+    typedef std::map<std::string, const aiExportFormatDesc *> ExportIdMap;
+    ExportIdMap exporterMap;
+    for (size_t i = 0; i < exportFormatCount; ++i) {
+        // Check that the exporter description exists and makes sense
+        const aiExportFormatDesc *desc = exporter.GetExportFormatDescription(i);
+        ASSERT_NE(nullptr, desc) << "Missing aiExportFormatDesc at index " << i;
+        EXPECT_NE(nullptr, desc->id) << "Null exporter ID at index " << i;
+        EXPECT_STRNE("", desc->id) << "Empty exporter ID at index " << i;
+        EXPECT_NE(nullptr, desc->description) << "Null exporter description at index " << i;
+        EXPECT_STRNE("", desc->description) << "Empty exporter description at index " << i;
+        EXPECT_NE(nullptr, desc->fileExtension) << "Null exporter file extension at index " << i;
+        EXPECT_STRNE("", desc->fileExtension) << "Empty exporter file extension at index " << i;
+
+        // Check the ID is unique
+        std::string key(desc->id);
+        std::pair<ExportIdMap::iterator, bool> result = exporterMap.emplace(key, desc);
+        EXPECT_TRUE(result.second) << "Duplicate exported id: '" << key << "' " << desc->description << " *." << desc->fileExtension << " at index " << i;
+    }
+
+    const aiExportFormatDesc *desc = exporter.GetExportFormatDescription(exportFormatCount);
+    EXPECT_EQ(nullptr, desc) << "More exporters than claimed";
+}
+
+#endif
\ No newline at end of file
diff --git a/libs/assimp/test/unit/ImportExport/utMD2Importer.cpp b/libs/assimp/test/unit/ImportExport/utMD2Importer.cpp
new file mode 100644
index 0000000..0fcf76b
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utMD2Importer.cpp
@@ -0,0 +1,78 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+TEST(utMD2Importer, importFaerie) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/MD2/faerie.md2", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD2Importer, importSydney) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/MD2/sydney.md2", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD2Importer, importDolphin) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD2/dolphin.md2", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD2Importer, importFlag) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD2/flag.md2", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD2Importer, importHorse) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD2/horse.md2", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
diff --git a/libs/assimp/test/unit/ImportExport/utMD3Importer.cpp b/libs/assimp/test/unit/ImportExport/utMD3Importer.cpp
new file mode 100644
index 0000000..ab7c418
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utMD3Importer.cpp
@@ -0,0 +1,67 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2021, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+
+using namespace Assimp;
+
+TEST(utMD3Importer, importWatercan) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD3/watercan.md3", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD3Importer, importWatercan_dmg) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD3/watercan_dmg.md3", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD3Importer, importEuropean_fnt_v2) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD3/q3root/models/mapobjects/kt_kubalwagon/european_fnt_v2.md3", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
diff --git a/libs/assimp/test/unit/ImportExport/utMD5Importer.cpp b/libs/assimp/test/unit/ImportExport/utMD5Importer.cpp
new file mode 100644
index 0000000..0821219
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utMD5Importer.cpp
@@ -0,0 +1,72 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+TEST(utMD5Importer, importEmpty) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/MD5/invalid/empty.md5mesh", aiProcess_ValidateDataStructure);
+    ASSERT_EQ(nullptr, scene);
+}
+
+TEST(utMD5Importer, importSimpleCube) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/MD5/SimpleCube.md5mesh", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD5Importer, importBoarMan) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD5/BoarMan.md5mesh", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utMD5Importer, importBob) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/MD5/Bob.md5mesh", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
diff --git a/libs/assimp/test/unit/ImportExport/utMDLImporter.cpp b/libs/assimp/test/unit/ImportExport/utMDLImporter.cpp
new file mode 100644
index 0000000..c896060
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utMDLImporter.cpp
@@ -0,0 +1,80 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "UnitTestPCH.h"
+
+#include "AbstractImportExportBase.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Importer.hpp>
+
+#include "MDL/MDLHL1TestFiles.h"
+
+using namespace Assimp;
+
+class utMDLImporter : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+
+        Assimp::Importer importer;
+        importerTest_HL1(&importer);
+
+        // Add further MDL tests...
+
+        return true;
+    }
+
+private:
+    void importerTest_HL1(Assimp::Importer *const importer) {
+        const aiScene *scene = importer->ReadFile(MDL_HL1_FILE_MAN, 0);
+        EXPECT_NE(nullptr, scene);
+
+        // Test that the importer can directly load an HL1 MDL external texture file.
+        scene = importer->ReadFile(ASSIMP_TEST_MDL_HL1_MODELS_DIR "manT.mdl", aiProcess_ValidateDataStructure);
+        EXPECT_NE(nullptr, scene);
+        EXPECT_NE(0u, scene->mNumTextures);
+        EXPECT_NE(0u, scene->mNumMaterials);
+    }
+};
+
+TEST_F(utMDLImporter, importMDLFromFileTest) {
+    EXPECT_TRUE(importerTest());
+}
diff --git a/libs/assimp/test/unit/ImportExport/utNFFImportExport.cpp b/libs/assimp/test/unit/ImportExport/utNFFImportExport.cpp
new file mode 100644
index 0000000..621324a
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utNFFImportExport.cpp
@@ -0,0 +1,60 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utNFFImportExport : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/NFF/NFF/ManyEarthsNotJustOne.nff", 0);
+        return nullptr != scene;
+    }
+};
+
+TEST_F(utNFFImportExport, importNFFFromFileTest) {
+    EXPECT_TRUE(importerTest());
+}
diff --git a/libs/assimp/test/unit/ImportExport/utOFFImportExport.cpp b/libs/assimp/test/unit/ImportExport/utOFFImportExport.cpp
new file mode 100644
index 0000000..78ae4ac
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utOFFImportExport.cpp
@@ -0,0 +1,60 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/scene.h>
+#include <assimp/Exporter.hpp>
+#include <assimp/Importer.hpp>
+
+class utOFFImportExport : public AbstractImportExportBase {
+protected:
+    virtual bool importerTest() {
+        ::Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/OFF/Cube.off", aiProcess_ValidateDataStructure);
+        return nullptr != scene;
+    }
+};
+
+TEST_F(utOFFImportExport, importOFFFromFileTest) {
+    EXPECT_TRUE(importerTest());
+}
diff --git a/libs/assimp/test/unit/ImportExport/utOgreImportExport.cpp b/libs/assimp/test/unit/ImportExport/utOgreImportExport.cpp
new file mode 100644
index 0000000..7312d6b
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utOgreImportExport.cpp
@@ -0,0 +1,61 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utOgreImportExport : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/Ogre/TheThing/Mesh.mesh.xml", aiProcess_ValidateDataStructure);
+        return nullptr != scene;
+    }
+};
+
+TEST_F(utOgreImportExport, importerTest) {
+    EXPECT_TRUE(importerTest());
+}
diff --git a/libs/assimp/test/unit/ImportExport/utQ3BSPFileImportExport.cpp b/libs/assimp/test/unit/ImportExport/utQ3BSPFileImportExport.cpp
new file mode 100644
index 0000000..f5694d2
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utQ3BSPFileImportExport.cpp
@@ -0,0 +1,61 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+class utQ3BSPImportExport : public AbstractImportExportBase {
+public:
+    virtual bool importerTest() {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_NONBSD_DIR "/PK3/SGDTT3.pk3", 0);
+        return nullptr != scene;
+    }
+};
+
+TEST_F(utQ3BSPImportExport, importerTest) {
+    EXPECT_TRUE(importerTest());
+}
diff --git a/libs/assimp/test/unit/ImportExport/utXGLImportExport.cpp b/libs/assimp/test/unit/ImportExport/utXGLImportExport.cpp
new file mode 100644
index 0000000..8199806
--- /dev/null
+++ b/libs/assimp/test/unit/ImportExport/utXGLImportExport.cpp
@@ -0,0 +1,94 @@
+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+
+#include "UnitTestPCH.h"
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+using namespace Assimp;
+
+TEST(utXGLImporter, importBCN_Epileptic) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/BCN_Epileptic.zgl", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utXGLImporter, importCubesWithAlpha) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/cubes_with_alpha.zgl", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utXGLImporter, importSample_official) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/sample_official.xgl", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utXGLImporter, importSample_official_asxml) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/sample_official_asxml.xml", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utXGLImporter, importSphereWithMatGloss) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/sphere_with_mat_gloss_10pc.zgl", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utXGLImporter, importSpiderASCII) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/Spider_ascii.zgl", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utXGLImporter, importWuson) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/Wuson.zgl", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}
+
+TEST(utXGLImporter, importWusonDXF) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/XGL/wuson_dxf.zgl", aiProcess_ValidateDataStructure);
+    ASSERT_NE(nullptr, scene);
+}