sdl2-hello-world/src/packages/game-test/config/IZ_config.c

#include "bdd-for-c.h"
#include "../../game/config/IZ_config.h"

#define mock_call_count_t uint8_t

#define mock(X) static mock_call_count_t calls_##X = 0;

#define mock_return(X) calls_##X += 1; return

#define mock_reset(X) calls_##X = 0

#define mock_calls(X) ((mock_call_count_t) (calls_##X))

mock(SDL_GetBasePath) char* SDL_GetBasePath() {
	mock_return(SDL_GetBasePath) "";
}

mock(SDL_GetKeyName) const char* SDL_GetKeyName (SDL_KeyCode code) {
	mock_return(SDL_GetKeyName) "";
}

mock(SDL_GetKeyFromName) SDL_KeyCode SDL_GetKeyFromName(const char* name) {
	mock_return(SDL_GetKeyFromName) 0;
}

mock(ini_gets) int ini_gets(
	const TCHAR *Section,
	const TCHAR *Key,
	const TCHAR *DefValue,
	char *Buffer,
	int BufferSize,
	const TCHAR *Filename
) {
	mock_return(ini_gets) 0;
}

mock(ini_getl) long ini_getl(
	const TCHAR *Section,
	const TCHAR *Key,
	long DefValue,
	const TCHAR *Filename
) {
	mock_return(ini_getl) DefValue;
}

spec("config") {
	describe("LoadConfig") {
		static IZ_Config config;

		after_each() {
			mock_reset(ini_getl);
		}

		after_each() {
			mock_reset(ini_gets);
		}

		after_each() {
			mock_reset(SDL_GetKeyFromName);
		}

		after_each() {
			mock_reset(SDL_GetKeyName);
		}

		after_each() {
			mock_reset(SDL_GetBasePath);
		}

		it("should load default config values") {
			IZ_LoadConfig(&config);

			check(
				mock_calls(SDL_GetBasePath) > 0,
				"SDL_GetBasePath() not called."
			);

			static const mock_call_count_t expected_calls_ini_getl =
				3 // video params
				+ 1 // input params
				+ (12 * PLAYERS); // joystick controls
			check(
				mock_calls(ini_getl) == expected_calls_ini_getl,
				"Call count mismatch for ini_getl() (expected %u, received %u).",
				expected_calls_ini_getl,
				mock_calls(ini_getl)
			);

			check(
				config.video.width == 640,
				"Default value for Video.Width is not loaded."
			);
			check(
				config.video.height == 480,
				"Default value for Video.Height is not loaded."
			);
			check(
				config.video.max_fps == 30,
				"Default value for Video.MaxFps is not loaded."
			);

			check(
				config.input.gamepad_axis_threshold == 8000,
				"Default value for Input.GamepadAxisThreshold is not loaded."
			);

			static const mock_call_count_t expected_calls_ini_gets =
				(16 * PLAYERS); // keyboard controls
			check(
				mock_calls(ini_gets) == expected_calls_ini_gets,
				"Call count mismatch for ini_gets() (expected %u, received %u).",
				expected_calls_ini_gets,
				mock_calls(ini_gets)
			);

			static const mock_call_count_t expected_calls_SDL_GetKeyFromName =
				(16 * PLAYERS); // keyboard controls
			check(
				mock_calls(SDL_GetKeyFromName) == expected_calls_SDL_GetKeyFromName,
				"Call count mismatch for SDL_GetKeyFromName() (expected %u, received %u).",
				expected_calls_SDL_GetKeyFromName,
				mock_calls(SDL_GetKeyFromName)
			);

			static const mock_call_count_t expected_calls_SDL_GetKeyName =
				(16 * PLAYERS); // keyboard controls
			check(
				mock_calls(SDL_GetKeyName) == expected_calls_SDL_GetKeyName,
				"Call count mismatch for SDL_GetKeyName() (expected %u, received %u).",
				expected_calls_SDL_GetKeyName,
				mock_calls(SDL_GetKeyName)
			);
		}
	}
}