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174 lines
7.1 KiB
C
174 lines
7.1 KiB
C
/*
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* Basic utility routines for the TAP protocol.
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*
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* This file is part of C TAP Harness. The current version plus supporting
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* documentation is at <https://www.eyrie.org/~eagle/software/c-tap-harness/>.
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*
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* Copyright 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
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* Russ Allbery <eagle@eyrie.org>
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* Copyright 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2011, 2012, 2014
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* The Board of Trustees of the Leland Stanford Junior University
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef TAP_BASIC_H
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#define TAP_BASIC_H 1
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#include <tests/tap/macros.h>
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#include <stdarg.h> /* va_list */
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#include <stddef.h> /* size_t */
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/*
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* Used for iterating through arrays. ARRAY_SIZE returns the number of
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* elements in the array (useful for a < upper bound in a for loop) and
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* ARRAY_END returns a pointer to the element past the end (ISO C99 makes it
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* legal to refer to such a pointer as long as it's never dereferenced).
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*/
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#define ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0]))
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#define ARRAY_END(array) (&(array)[ARRAY_SIZE(array)])
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BEGIN_DECLS
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/*
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* The test count. Always contains the number that will be used for the next
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* test status.
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*/
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extern unsigned long testnum;
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/* Print out the number of tests and set standard output to line buffered. */
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void plan(unsigned long count);
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/*
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* Prepare for lazy planning, in which the plan will be printed automatically
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* at the end of the test program.
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*/
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void plan_lazy(void);
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/* Skip the entire test suite. Call instead of plan. */
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void skip_all(const char *format, ...)
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__attribute__((__noreturn__, __format__(printf, 1, 2)));
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/*
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* Basic reporting functions. The okv() function is the same as ok() but
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* takes the test description as a va_list to make it easier to reuse the
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* reporting infrastructure when writing new tests. ok() and okv() return the
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* value of the success argument.
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*/
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int ok(int success, const char *format, ...)
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__attribute__((__format__(printf, 2, 3)));
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int okv(int success, const char *format, va_list args)
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__attribute__((__format__(printf, 2, 0)));
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void skip(const char *reason, ...)
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__attribute__((__format__(printf, 1, 2)));
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/*
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* Report the same status on, or skip, the next count tests. ok_block()
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* returns the value of the success argument.
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*/
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int ok_block(unsigned long count, int success, const char *format, ...)
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__attribute__((__format__(printf, 3, 4)));
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void skip_block(unsigned long count, const char *reason, ...)
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__attribute__((__format__(printf, 2, 3)));
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/*
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* Check an expected value against a seen value. Returns true if the test
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* passes and false if it fails. is_bool takes an int since the bool type
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* isn't fully portable yet, but interprets both arguments for their truth
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* value, not for their numeric value.
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*/
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int is_bool(int wanted, int seen, const char *format, ...)
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__attribute__((__format__(printf, 3, 4)));
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int is_int(long wanted, long seen, const char *format, ...)
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__attribute__((__format__(printf, 3, 4)));
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int is_string(const char *wanted, const char *seen, const char *format, ...)
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__attribute__((__format__(printf, 3, 4)));
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int is_hex(unsigned long wanted, unsigned long seen, const char *format, ...)
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__attribute__((__format__(printf, 3, 4)));
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/* Bail out with an error. sysbail appends strerror(errno). */
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void bail(const char *format, ...)
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__attribute__((__noreturn__, __nonnull__, __format__(printf, 1, 2)));
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void sysbail(const char *format, ...)
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__attribute__((__noreturn__, __nonnull__, __format__(printf, 1, 2)));
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/* Report a diagnostic to stderr prefixed with #. */
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int diag(const char *format, ...)
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__attribute__((__nonnull__, __format__(printf, 1, 2)));
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int sysdiag(const char *format, ...)
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__attribute__((__nonnull__, __format__(printf, 1, 2)));
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/*
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* Register or unregister a file that contains supplementary diagnostics.
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* Before any other output, all registered files will be read, line by line,
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* and each line will be reported as a diagnostic as if it were passed to
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* diag(). Nul characters are not supported in these files and will result in
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* truncated output.
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*/
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void diag_file_add(const char *file)
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__attribute__((__nonnull__));
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void diag_file_remove(const char *file)
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__attribute__((__nonnull__));
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/* Allocate memory, reporting a fatal error with bail on failure. */
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void *bcalloc(size_t, size_t)
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__attribute__((__alloc_size__(1, 2), __malloc__, __warn_unused_result__));
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void *bmalloc(size_t)
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__attribute__((__alloc_size__(1), __malloc__, __warn_unused_result__));
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void *breallocarray(void *, size_t, size_t)
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__attribute__((__alloc_size__(2, 3), __malloc__, __warn_unused_result__));
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void *brealloc(void *, size_t)
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__attribute__((__alloc_size__(2), __malloc__, __warn_unused_result__));
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char *bstrdup(const char *)
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__attribute__((__malloc__, __nonnull__, __warn_unused_result__));
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char *bstrndup(const char *, size_t)
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__attribute__((__malloc__, __nonnull__, __warn_unused_result__));
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/*
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* Find a test file under C_TAP_BUILD or C_TAP_SOURCE, returning the full
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* path. The returned path should be freed with free().
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*/
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char *test_file_path(const char *file)
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__attribute__((__malloc__, __nonnull__, __warn_unused_result__));
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/*
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* Create a temporary directory relative to C_TAP_BUILD and return the path.
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* The returned path should be freed with test_tmpdir_free().
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*/
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char *test_tmpdir(void)
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__attribute__((__malloc__, __warn_unused_result__));
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void test_tmpdir_free(char *path);
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/*
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* Register a cleanup function that is called when testing ends. All such
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* registered functions will be run during atexit handling (and are therefore
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* subject to all the same constraints and caveats as atexit functions).
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*
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* The function must return void and will be passed two arguments: an int that
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* will be true if the test completed successfully and false otherwise, and an
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* int that will be true if the cleanup function is run in the primary process
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* (the one that called plan or plan_lazy) and false otherwise.
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*/
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typedef void (*test_cleanup_func)(int, int);
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void test_cleanup_register(test_cleanup_func)
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__attribute__((__nonnull__));
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END_DECLS
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#endif /* TAP_BASIC_H */
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