5 files changed, 68 insertions, 1 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6b37672..bdd1832 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,6 +53,7 @@ set(TEST_SOURCES
 	${SRC_ROOT}/test/honey-test.c
 
 	${SRC_ROOT}/logging/logging.test.c
+	${SRC_ROOT}/gl/window.test.c
 )
 
 add_executable(test EXCLUDE_FROM_ALL ${TEST_SOURCES})
diff --git a/src/gl/notes.md b/src/gl/notes.md
new file mode 100644
index 0000000..3ea0171
--- /dev/null
+++ b/src/gl/notes.md
@@ -0,0 +1,10 @@
+honey/gl
+--------
+
+only support 1 window, for simplicity
+
+want to be **as transparent as possible**! only hide things from the Lua layer when they are either performance-critical or when they are so C-level that wrapping them would be too clunky.
+
+**lua setup functions should do nothing except populate tables**
+
+`gl.init()` will create the window (because that's how we get the opengl context)
diff --git a/src/gl/window.c b/src/gl/window.c
new file mode 100644
index 0000000..c81c041
--- /dev/null
+++ b/src/gl/window.c
@@ -0,0 +1,9 @@
+#include "gl/glad/glad.h"
+#include <GLFW/glfw3.h>
+#include <lua.h>
+
+
+int gl_init(lua_State *L)
+{
+	return 0;
+}
diff --git a/src/gl/window.test.c b/src/gl/window.test.c
new file mode 100644
index 0000000..0dc255b
--- /dev/null
+++ b/src/gl/window.test.c
@@ -0,0 +1,45 @@
+#include <lua.h>
+#include <lauxlib.h>
+#include "test/honey-test.h"
+
+int mock_glfwInit();
+#define glfwInit mock_glfwInit
+#include "gl/window.c"
+#undef glfwInit
+
+
+lily_mock_t *mock_glfwInit_data = NULL;
+int mock_glfwInit()
+{
+	lily_mock_call(mock_glfwInit_data, NULL);
+
+	int result;
+	lily_dequeue(mock_glfwInit_data->values, int, &result);
+	return result;
+}
+
+
+void gl_init_succeeds();
+
+void suite_window()
+{
+	lily_run_test(gl_init_succeeds);
+
+	CLEAN_MOCK(mock_glfwInit);
+}
+
+
+/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
+
+
+void gl_init_succeeds()
+{
+	USE_MOCK(mock_glfwInit);
+	lua_State *L = luaL_newstate();
+	
+	lua_pushcfunction(L, gl_init);
+	int error = lua_pcall(L, 0, 0, 0);
+
+	lily_assert_int_equal(error, 0);
+	lily_assert_int_equal(mock_glfwInit_data->n_calls, 1);
+}
diff --git a/src/test/honey-test.h b/src/test/honey-test.h
index ac79d8a..a31bcff 100644
--- a/src/test/honey-test.h
+++ b/src/test/honey-test.h
@@ -23,8 +23,10 @@
 
 
 void suite_logging();
+void suite_window();
 
 #define RUN_TESTS() \
-	lily_run_suite(suite_logging);
+	lily_run_suite(suite_logging); \
+	lily_run_suite(suite_window); \
 
 #endif