Merge pull request 'Feat: introduce munit unit testing' (#21) from feat/munit-unit-testing into dev

Reviewed-on: #21

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "third_party/munit"]
+	path = third_party/munit
+	url = https://github.com/nemequ/munit.git

CMakeLists.txt

@@ -10,3 +10,4 @@ pkg_check_modules(SDL3 REQUIRED IMPORTED_TARGET sdl3)
 
 add_subdirectory(src/engine)
 add_subdirectory(src/examples)
+add_subdirectory(tests)

tests/CMakeLists.txt

@@ -0,0 +1,40 @@
+add_library(munit STATIC
+    "${PROJECT_SOURCE_DIR}/third_party/munit/munit.c"
+)
+
+target_include_directories(munit
+    PUBLIC
+        ${PROJECT_SOURCE_DIR}/third_party
+)
+
+file(GLOB TEST_SOURCES CONFIGURE_DEPENDS
+    "${CMAKE_CURRENT_SOURCE_DIR}/suites/*.c"
+)
+
+add_library(dangerzone_tests STATIC
+    ${TEST_SOURCES}
+)
+
+target_include_directories(dangerzone_tests
+    PUBLIC
+        ${PROJECT_SOURCE_DIR}/include
+        ${PROJECT_SOURCE_DIR}/src
+        ${PROJECT_SOURCE_DIR}/third_party
+)
+
+add_executable(test_runner 
+    main.c
+)
+
+target_link_libraries(test_runner 
+    PRIVATE
+        dangerzone_tests
+        munit
+        dangerzone_engine
+)
+
+add_custom_target(test
+    COMMAND tests/test_runner
+    DEPENDS test_runner
+    WORKING_DIRECTORY ${PROJECT_BINARY_DIR}
+)

tests/main.c

@@ -0,0 +1,26 @@
+#include "munit/munit.h"
+
+extern const MunitSuite sdl_suite;
+
+int main(int argc, char *argv[]) {
+    MunitSuite sub_suites[] = {
+        sdl_suite,
+        { // terminator
+            NULL,
+            NULL,
+            NULL,
+            0,
+            MUNIT_SUITE_OPTION_NONE
+        }
+    };
+
+    MunitSuite master_suite = {
+        "",
+        NULL,
+        sub_suites,
+        1,
+        MUNIT_SUITE_OPTION_NONE
+    };
+
+    return munit_suite_main(&master_suite, NULL, argc, argv);
+}

tests/suites/sdl.c

@@ -0,0 +1,90 @@
+#include <dangerzone/engine.h>
+#include "internal/engine_internal.h"
+
+#include "munit/munit.h"
+
+static void*
+test_setup(
+    const MunitParameter params[],
+    void* data
+) {
+    (void)params;
+    (void)data;
+
+    internal_state = (engine_internal_state_t *)
+		malloc(sizeof(engine_internal_state_t));
+    munit_assert_not_null(internal_state);
+
+ 	internal_state->sdl_state = (engine_sdl_state_t *)
+	 	malloc(sizeof(engine_sdl_state_t));
+ 	munit_assert_not_null(internal_state->sdl_state);
+
+	internal_state->sdl_state->width = 500;
+	internal_state->sdl_state->height = 500;
+	strncpy(
+		internal_state->sdl_state->window_name, "Dangerzone",
+		WINDOW_NAME_MAX_LENGTH - 1
+	);
+	internal_state->sdl_state->window_name[WINDOW_NAME_MAX_LENGTH - 1] = '\0';
+
+    return internal_state;
+}
+
+static void
+test_teardown(
+    void *fixture
+) {
+    engine_internal_state_t *state = fixture;
+
+    if (state->sdl_state != NULL) {
+        free(state->sdl_state);
+        free(state);
+    }
+
+    internal_state = NULL;
+}
+
+static MunitResult
+test_window_parameters(
+    const MunitParameter params[], 
+    void* data
+) {
+    (void)params;
+
+    engine_internal_state_t *state = data;
+
+    munit_assert_not_null(state);
+    munit_assert_not_null(state->sdl_state);
+    munit_assert_int(state->sdl_state->width, ==, 500);
+    munit_assert_int(state->sdl_state->height, ==, 500);
+    munit_assert_int(strcmp(state->sdl_state->window_name, "Dangerzone"), ==, 0);
+
+    return MUNIT_OK;
+}
+
+MunitTest tests[] = {
+    {
+        "/window-parameters",
+        test_window_parameters,
+        test_setup,
+        test_teardown,
+        MUNIT_TEST_OPTION_NONE,
+        NULL
+    },
+    { // terminator
+        NULL,
+        NULL,
+        NULL,
+        NULL,
+        MUNIT_TEST_OPTION_NONE,
+        NULL
+    }
+};
+
+const MunitSuite sdl_suite = {
+    "/sdl",
+    tests,
+    NULL,
+    1,
+    MUNIT_SUITE_OPTION_NONE
+};