unit_test.h

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#ifndef MML_UNIT_TEST_H
#define MML_UNIT_TEST_H

#include "print.h"
#include "math.h"
#include "gctypes.h"

#define STRINGIFY(x) #x
#define TOSTRING(x) STRINGIFY(x)
#define ASSERT_MSG "assert failed: " __FILE__ ":" TOSTRING(__LINE__)

#define APPROX_ZERO(x, tol) (fabs(x) < tol)

#define REQUIRE(condition) \
do { \
    if (!(condition)) \
    { \
        print(ASSERT_MSG); \
        _tests_passed = false; \
    } \
} while (0)

#define REQUIRE_FLT_EQ(L, R, tol) REQUIRE(APPROX_ZERO((L) - (R), tol))

#define UNIT_TEST static bool _tests_passed = true

#define END_TEST \
do { \
    if (_tests_passed) \
    { \
        print("all tests passed!"); \
    } \
} while (0)

#endif