138 lines
5.8 KiB
C++
138 lines
5.8 KiB
C++
// 27 february 2018
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// TODO
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// - https://blogs.msdn.microsoft.com/oldnewthing/20181107-00/?p=100155 https://blogs.msdn.microsoft.com/oldnewthing/20181108-00/?p=100165 https://blogs.msdn.microsoft.com/oldnewthing/20181109-00/?p=100175
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// - also in the above: note the unspecified order of data in the sub-segments...
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#ifndef testingprivIncludeGuard_testing_h
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#define testingprivIncludeGuard_testing_h
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#include <stdarg.h>
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#undef testingprivBadLanguageVersion
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#ifdef __cplusplus
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// TODO https://stackoverflow.com/questions/2324658/how-to-determine-the-version-of-the-c-standard-used-by-the-compiler implies this won't do with C++0x-era compilers, and https://wiki.apache.org/stdcxx/C++0xCompilerSupport doesn't talk about va_copy() so a simple version check for the C99 preprocessor may be wrong...
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// TODO what if __cplusplus is blank (maybe only in that case, since IIRC C++98 requires __cplusplus to have a value)?
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#if __cplusplus < 201103L
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#define testingprivBadLanguageVersion
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#endif
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#elif !defined(__STDC_VERSION__)
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#define testingprivBadLanguageVersion
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#elif __STDC_VERSION__ < 199901L
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#define testingprivBadLanguageVersion
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#endif
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#ifdef testingprivBadLanguageVersion
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#error sorry, TODO requires either C99 or C++11; cannot continue
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __cplusplus
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#define testingprivMkScaffold(name) \
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static inline void testingprivScaffold ## name(testingT *t) \
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{ \
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bool failedNow = false, skippedNow = false; \
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try { name(t); } \
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catch (testingprivFailNowException e) { failedNow = true; } \
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catch (testingprivSkipNowException e) { skippedNow = true; } \
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/* TODO see if we should catch other exceptions too */ \
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/* don't call these in the catch blocks as they call longjmp() */ \
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if (failedNow) testingprivTDoFailNow(t); \
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if (skippedNow) testingprivTDoSkipNow(t); \
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}
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#else
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#define testingprivMkScaffold(name) \
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static inline void testingprivScaffold ## name(testingT *t) { name(t); }
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#endif
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// references:
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// - https://gitlab.gnome.org/GNOME/glib/blob/master/glib/gconstructor.h
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// - https://gitlab.gnome.org/GNOME/glib/blob/master/gio/glib-compile-resources.c
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// - https://msdn.microsoft.com/en-us/library/bb918180.aspx
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#if defined(__cplusplus)
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#define testingprivMkCtor(name, reg) \
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static reg ## Class testingprivCtor ## name(#name, testingprivScaffold ## name);
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#elif defined(__GNUC__)
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#define testingprivMkCtor(name, reg) \
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__attribute__((constructor)) static void testingprivCtor ## name(void) { reg(#name, testingprivScaffold ## name); }
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#elif defined(_MSC_VER)
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#define testingprivMkCtorPrototype(name, reg) \
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static int name(void) testingprivCtor ## name(void) { reg(#name, testingprivScaffold ## name); return 0; } \
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__pragma(section(".CRT$XCU",read)) \
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__declspec(allocate(".CRT$XCU")) static int (*testingprivCtorPtr ## name)(void) = testingprivCtor ## name;
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#elif defined(__SUNPRO_C)
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#define testingprivMkCtor(name, reg) \
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_Pragma("init(testingprivCtor" #name ")") static void testingprivCtor ## name(void) { reg(#name, testingprivScaffold ## name); }
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#else
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#error unknown compiler for making constructors in C; cannot continue
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#endif
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#define testingTest(Name) \
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void Test ## Name(testingT *t); \
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testingprivMkScaffold(Test ## Name) \
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testingprivMkCtor(Test ## Name, testingprivRegisterTest) \
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void Test ## Name(testingT *t)
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extern int testingMain(void);
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typedef struct testingT testingT;
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#define testingTLogf(t, ...) \
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testingprivExpand(testingprivTLogfThen((void), t, __VA_ARGS__))
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#define testingTLogvf(t, format, ap) \
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testingprivTLogvfThen((void), t, format, ap)
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#define testingTErrorf(t, ...) \
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testingprivExpand(testingprivTLogfThen(testingTFail, t, __VA_ARGS__))
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#define testingTErrorvf(t, format, ap) \
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testingprivTLogvfThen(testingTFail, t, format, ap)
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#define testingTFatalf(t, ...) \
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testingprivExpand(testingprivTLogfThen(testingTFailNow, t, __VA_ARGS__))
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#define testingTFatalvf(t, format, ap) \
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testingprivTLogvfThen(testingTFailNow, t, format, ap)
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#define testingTSkipf(t, ...) \
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testingprivExpand(testingprivTLogfThen(testingTSkipNow, t, __VA_ARGS__))
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#define testingTSkipvf(t, format, ap) \
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testingprivTLogvfThen(testingTSkipNow, t, format, ap)
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extern void testingTFail(testingT *t);
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#ifdef __cplusplus
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#define testingTFailNow(t) (throw testingprivFailNowException())
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#define testingTSkipNow(t) (throw testingprivSkipNowException())
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#else
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#define testingTFailNow(t) (testingprivTDoFailNow(t))
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#define testingTSkipNow(t) (testingprivTDoSkipNow(t))
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#endif
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// TODO should the defered function also have t passed to it?
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extern void testingTDefer(testingT *t, void (*f)(void *data), void *data);
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// TODO IEEE 754 helpers
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// references:
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// - https://www.sourceware.org/ml/libc-alpha/2009-04/msg00005.html
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// - https://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html
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// - https://stackoverflow.com/questions/5085533/is-a-c-preprocessor-identical-to-a-c-preprocessor
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// TODO should __LINE__ arguments use intmax_t or uintmax_t instead of int?
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extern void testingprivRegisterTest(const char *, void (*)(testingT *));
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// see https://stackoverflow.com/questions/32399191/va-args-expansion-using-msvc
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#define testingprivExpand(x) x
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#define testingprivTLogfThen(then, t, ...) ((testingprivTLogfFull(t, __FILE__, __LINE__, __VA_ARGS__)), (then(t)))
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#define testingprivTLogvfThen(then, t, format, ap) ((testingprivTLogvfFull(t, __FILE__, __LINE__, format, ap)), (then(t)))
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extern void testingprivTLogfFull(testingT *, const char *, int, const char *, ...);
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extern void testingprivTLogvfFull(testingT *, const char *, int, const char *, va_list);
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extern void testingprivTDoFailNow(testingT *);
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extern void testingprivTDoSkipNow(testingT *);
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#ifdef __cplusplus
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}
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namespace {
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class testingprivFailNowException {};
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class testingprivSkipNowException {};
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class testingprivRegisterTestClass {
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public:
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testingprivRegisterTestClass(const char *name, void (*f)(testingT *)) { testingprivRegisterTest(name, f); }
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};
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}
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#endif
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#endif
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