1 files changed, 65 insertions, 0 deletions
diff --git a/tests/snake.c b/tests/snake.c
new file mode 100644
index 0000000..f4acc7e
--- /dev/null
+++ b/tests/snake.c
@@ -0,0 +1,65 @@
+#include "suites.h"
+
+#include "snake.S"
+
+#include <cmocka.h>
+
+
+
+extern void snake_init(snake_t *self, int x, int y, int length);
+
+static void test_snake_init_sets_x([[maybe_unused]] void **state) {
+  // Arrange:
+  snake_t snake;
+
+  // Act:
+  snake_init(&snake, 1, 2, 3);
+
+  // Assert:
+  assert_int_equal(snake.x, 1);
+}
+
+static void test_snake_init_sets_y([[maybe_unused]] void **state) {
+  // Arrange:
+  snake_t snake;
+
+  // Act:
+  snake_init(&snake, 1, 2, 3);
+
+  // Assert:
+  assert_int_equal(snake.y, 2);
+}
+
+static void test_snake_init_sets_length([[maybe_unused]] void **state) {
+  // Arrange:
+  snake_t snake;
+
+  // Act:
+  snake_init(&snake, 1, 2, 3);
+
+  // Assert:
+  assert_int_equal(snake.length, 3);
+}
+
+static void
+test_snake_init_sets_direction_to_zero([[maybe_unused]] void **state) {
+  // Arrange:
+  snake_t snake;
+
+  // Act:
+  snake_init(&snake, 1, 2, 3);
+
+  // Assert:
+  assert_int_equal(snake.direction, 0);
+}
+
+int run_snake_tests(void) {
+  struct CMUnitTest const tests[] = {
+      cmocka_unit_test(test_snake_init_sets_x),
+      cmocka_unit_test(test_snake_init_sets_y),
+      cmocka_unit_test(test_snake_init_sets_length),
+      cmocka_unit_test(test_snake_init_sets_direction_to_zero),
+  };
+
+  return cmocka_run_group_tests(tests, NULL, NULL);
+}