92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
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* Copyright (C) 2013 Tobias Brunner
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup test test
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* @{ @ingroup utils
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*/
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#ifndef TEST_H_
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#define TEST_H_
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#include "collections/hashtable.h"
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/**
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* Collection of testable functions.
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*
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* @note Is initialized only if libtest is loaded.
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*/
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extern hashtable_t *testable_functions;
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/**
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* Register a (possibly static) function so that it can be called from tests.
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*
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* @param name name (namespace/function)
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* @param fn function to register (set to NULL to unregister)
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*/
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void testable_function_register(char *name, void *fn);
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/**
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* Macro to automatically register/unregister a function that can be called
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* from tests.
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*
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* @param ns namespace
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* @param fn function to register
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*/
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#define EXPORT_FUNCTION_FOR_TESTS(ns, fn) \
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static void testable_function_register_##fn() __attribute__ ((constructor(2000))); \
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static void testable_function_register_##fn() \
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{ \
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testable_function_register(#ns "/" #fn, fn); \
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} \
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static void testable_function_unregister_##fn() __attribute__ ((destructor(2000))); \
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static void testable_function_unregister_##fn() \
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{ \
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testable_function_register(#ns "/" #fn, NULL); \
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}
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/**
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* Import a registered function so that it can be called from tests.
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*
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* @note If the imported function is static (or no conflicting header files
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* are included) ret can be prefixed with static to declare the function static.
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*
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* @note We allocate an arbitrary amount of stack space, hopefully enough for
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* all arguments.
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*
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* @param ns namespace of the function
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* @param name name of the function
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* @param ret return type of the function
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* @param ... arguments of the function
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*/
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#define IMPORT_FUNCTION_FOR_TESTS(ns, name, ret, ...) \
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ret name(__VA_ARGS__) \
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{ \
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void (*fn)() = NULL; \
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if (testable_functions) \
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{ \
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fn = testable_functions->get(testable_functions, #ns "/" #name); \
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} \
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if (fn) \
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{ \
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void *args = __builtin_apply_args(); \
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__builtin_return(__builtin_apply(fn, args, 16*sizeof(void*))); \
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} \
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test_fail_msg(__FILE__, __LINE__, "function " #name " (" #ns ") not found"); \
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__builtin_return(NULL); \
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}
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#endif /** TEST_H_ @}*/
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