From f133f0a424db19dd3263794e8fa71ea920ef3ea9 Mon Sep 17 00:00:00 2001
From: sanine <sanine.not@pm.me>
Date: Mon, 4 Apr 2022 16:42:05 -0500
Subject: add lily_mock_t basic functionality

---
 lily-test.c        | 42 ++++++++++++++++++++++++++++++++++++++++++
 lily-test.h        | 14 ++++++++++++++
 tests/main.c       |  1 +
 tests/mock_queue.c | 42 ++++++++++++++++++++++++++++++++++++++++++
 tests/tests.h      |  1 +
 5 files changed, 100 insertions(+)

diff --git a/lily-test.c b/lily-test.c
index 0581263..1e7e5f4 100644
--- a/lily-test.c
+++ b/lily-test.c
@@ -242,3 +242,45 @@ void _lily_dequeue(lily_queue_t *q, size_t size, uint8_t *ptr)
    memcpy(ptr, q->front, size);
    q->front += size;
 }
+
+
+lily_mock_t * lily_mock_create()
+{
+   lily_mock_t *m = malloc(sizeof(lily_mock_t));
+   m->n_calls = 0;
+   m->arguments = lily_queue_create();
+   m->values = lily_queue_create();
+   return m;
+}
+
+void lily_mock_destroy(lily_mock_t *m)
+{
+   lily_queue_destroy(m->arguments);
+   lily_queue_destroy(m->values);
+   free(m);
+}
+
+void _lily_mock_call(lily_mock_t *m, struct lily_mock_arg_t *args, size_t n_args)
+{
+   m->n_calls += 1;
+
+   for (int i=0; i<n_args; i++) {
+      _lily_enqueue(m->arguments, args[i].size, args[i].var);
+   }
+}
+
+void _lily_get_call(lily_mock_t *m,
+		    struct lily_mock_arg_t *args,
+		    size_t n_args,
+		    unsigned int call_num)
+{
+   size_t stride = 0;
+   for (int i=0; i<n_args; i++) {
+      stride += args[i].size;
+   }
+
+   m->arguments->front = m->arguments->buf + (call_num * stride);
+   for (int i=0; i<n_args; i++) {
+      _lily_dequeue(m->arguments, args[i].size, args[i].var);
+   }
+}
diff --git a/lily-test.h b/lily-test.h
index 51b440f..bf0bbae 100644
--- a/lily-test.h
+++ b/lily-test.h
@@ -151,4 +151,18 @@ typedef struct lily_mock_t {
    lily_queue_t *values;
 } lily_mock_t;
 
+lily_mock_t * lily_mock_create();
+void lily_mock_destroy(lily_mock_t *m);
+
+#define lily_mock_call(m, args)						\
+   _lily_mock_call(m, args, LILY_NARGS(args))
+void _lily_mock_call(lily_mock_t *m, struct lily_mock_arg_t *args, size_t n_args);
+
+#define lily_get_call(m, args, call_num) \
+   _lily_get_call(m, args, LILY_NARGS(args), call_num)
+void _lily_get_call(lily_mock_t *m,
+		    struct lily_mock_arg_t *args,
+		    size_t n_args,
+		    unsigned int call_num);
+
 #endif
diff --git a/tests/main.c b/tests/main.c
index f4e634c..84c8c09 100644
--- a/tests/main.c
+++ b/tests/main.c
@@ -24,6 +24,7 @@ int main()
    run_test(test_mock_enqueue_dequeue_int);
    run_test(test_mock_enqueue_dequeue_heterogenous);
    run_test(test_LILY_NARGS);
+   run_test(test_lily_mock_call);
    
    return 0;
 }
diff --git a/tests/mock_queue.c b/tests/mock_queue.c
index 4015c68..b7f852c 100644
--- a/tests/mock_queue.c
+++ b/tests/mock_queue.c
@@ -76,3 +76,45 @@ const char* test_LILY_NARGS()
 
    return 0;
 }
+
+
+const char* test_lily_mock_call()
+{
+   lily_mock_t *m = lily_mock_create();
+
+   int n = 5;
+   const char *str = "hello, world!";
+   lily_queue_t *q;
+
+   struct lily_mock_arg_t args[] =
+      { { sizeof(int), &n },
+	{ sizeof(const char *), &str },
+	{ sizeof(lily_queue_t *), &q },
+      };
+
+   lily_mock_call(m, args);
+   n = 16;
+   str = "hi there";
+   lily_mock_call(m, args);
+
+   if (m->n_calls != 2) return "incorrect number of calls registered";
+
+   int k; const char *s; lily_queue_t *p;
+   struct lily_mock_arg_t get_args[] =
+      { { sizeof(int), &k },
+	{ sizeof(const char *), &s },
+	{ sizeof(lily_queue_t *), &p },
+      };
+   lily_get_call(m, get_args, 0);
+   if (k != 5) return "incorrect int argument 0 registered";
+   if (strcmp(s, "hello, world!") != 0) return "incorrect string argument 0 registered";
+   if (p != q) return "incorrect pointer argument 0 registered";
+
+   lily_get_call(m, get_args, 1);
+   if (k != 16) return "incorrect int argument 1 registered";
+   if (strcmp(s, "hi there") != 0) return "incorrect string argument 1 registered";
+   if (p != q) return "incorrect pointer argument 1 registered";
+
+   lily_mock_destroy(m);
+   return 0;
+}
diff --git a/tests/tests.h b/tests/tests.h
index 39ad153..9584cac 100644
--- a/tests/tests.h
+++ b/tests/tests.h
@@ -21,5 +21,6 @@ const char* test_assert_int_not_equal();
 const char* test_mock_enqueue_dequeue_int();
 const char* test_mock_enqueue_dequeue_heterogenous();
 const char* test_LILY_NARGS();
+const char* test_lily_mock_call();
 
 #endif
-- 
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