feat(heap): code skeleton

test/heap/test_heap.c

@@ -0,0 +1,18 @@
+#include "acutest.h"
+#include "vieter_heap.h"
+
+#define TEST_SIZE(heap, size) \
+    TEST_CHECK(vieter_heap_size(heap) == size); \
+    TEST_MSG("Size: %zu", vieter_heap_size(heap))
+
+void test_init() {
+    vieter_heap *heap = vieter_heap_init();
+    TEST_CHECK(heap != NULL);
+    TEST_SIZE(heap, 0);
+    vieter_heap_free(heap);
+}
+
+TEST_LIST = {
+    {"test_init", test_init},
+    {NULL, NULL}
+};