780 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			780 lines
		
	
	
		
			20 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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|  * Use of this source code is governed by the GPLv2 license.
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|  *
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|  * kselftest_harness.h: simple C unit test helper.
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|  *
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|  * See documentation in Documentation/dev-tools/kselftest.rst
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|  *
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|  * API inspired by code.google.com/p/googletest
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|  */
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| 
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| /**
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|  * DOC: example
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|  *
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|  * .. code-block:: c
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|  *
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|  *    #include "../kselftest_harness.h"
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|  *
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|  *    TEST(standalone_test) {
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|  *      do_some_stuff;
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|  *      EXPECT_GT(10, stuff) {
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|  *         stuff_state_t state;
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|  *         enumerate_stuff_state(&state);
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|  *         TH_LOG("expectation failed with state: %s", state.msg);
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|  *      }
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|  *      more_stuff;
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|  *      ASSERT_NE(some_stuff, NULL) TH_LOG("how did it happen?!");
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|  *      last_stuff;
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|  *      EXPECT_EQ(0, last_stuff);
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|  *    }
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|  *
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|  *    FIXTURE(my_fixture) {
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|  *      mytype_t *data;
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|  *      int awesomeness_level;
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|  *    };
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|  *    FIXTURE_SETUP(my_fixture) {
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|  *      self->data = mytype_new();
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|  *      ASSERT_NE(NULL, self->data);
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|  *    }
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|  *    FIXTURE_TEARDOWN(my_fixture) {
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|  *      mytype_free(self->data);
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|  *    }
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|  *    TEST_F(my_fixture, data_is_good) {
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|  *      EXPECT_EQ(1, is_my_data_good(self->data));
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|  *    }
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|  *
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|  *    TEST_HARNESS_MAIN
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|  */
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| 
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| #ifndef __KSELFTEST_HARNESS_H
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| #define __KSELFTEST_HARNESS_H
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| 
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| #define _GNU_SOURCE
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| #include <asm/types.h>
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| #include <errno.h>
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| #include <stdbool.h>
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| #include <stdint.h>
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| #include <stdio.h>
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| #include <stdlib.h>
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| #include <string.h>
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| #include <sys/types.h>
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| #include <sys/wait.h>
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| #include <unistd.h>
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| 
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| 
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| /* Utilities exposed to the test definitions */
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| #ifndef TH_LOG_STREAM
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| #  define TH_LOG_STREAM stderr
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| #endif
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| 
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| #ifndef TH_LOG_ENABLED
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| #  define TH_LOG_ENABLED 1
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| #endif
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| 
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| /**
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|  * TH_LOG(fmt, ...)
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|  *
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|  * @fmt: format string
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|  * @...: optional arguments
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|  *
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|  * .. code-block:: c
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|  *
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|  *     TH_LOG(format, ...)
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|  *
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|  * Optional debug logging function available for use in tests.
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|  * Logging may be enabled or disabled by defining TH_LOG_ENABLED.
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|  * E.g., #define TH_LOG_ENABLED 1
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|  *
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|  * If no definition is provided, logging is enabled by default.
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|  *
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|  * If there is no way to print an error message for the process running the
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|  * test (e.g. not allowed to write to stderr), it is still possible to get the
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|  * ASSERT_* number for which the test failed.  This behavior can be enabled by
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|  * writing `_metadata->no_print = true;` before the check sequence that is
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|  * unable to print.  When an error occur, instead of printing an error message
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|  * and calling `abort(3)`, the test process call `_exit(2)` with the assert
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|  * number as argument, which is then printed by the parent process.
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|  */
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| #define TH_LOG(fmt, ...) do { \
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| 	if (TH_LOG_ENABLED) \
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| 		__TH_LOG(fmt, ##__VA_ARGS__); \
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| } while (0)
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| 
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| /* Unconditional logger for internal use. */
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| #define __TH_LOG(fmt, ...) \
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| 		fprintf(TH_LOG_STREAM, "%s:%d:%s:" fmt "\n", \
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| 			__FILE__, __LINE__, _metadata->name, ##__VA_ARGS__)
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| 
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| /**
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|  * XFAIL(statement, fmt, ...)
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|  *
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|  * @statement: statement to run after reporting XFAIL
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|  * @fmt: format string
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|  * @...: optional arguments
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|  *
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|  * This forces a "pass" after reporting a failure with an XFAIL prefix,
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|  * and runs "statement", which is usually "return" or "goto skip".
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|  */
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| #define XFAIL(statement, fmt, ...) do { \
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| 	if (TH_LOG_ENABLED) { \
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| 		fprintf(TH_LOG_STREAM, "[  XFAIL!  ] " fmt "\n", \
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| 			##__VA_ARGS__); \
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| 	} \
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| 	/* TODO: find a way to pass xfail to test runner process. */ \
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| 	_metadata->passed = 1; \
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| 	_metadata->trigger = 0; \
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| 	statement; \
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| } while (0)
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| 
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| /**
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|  * TEST(test_name) - Defines the test function and creates the registration
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|  * stub
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|  *
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|  * @test_name: test name
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|  *
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|  * .. code-block:: c
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|  *
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|  *     TEST(name) { implementation }
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|  *
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|  * Defines a test by name.
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|  * Names must be unique and tests must not be run in parallel.  The
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|  * implementation containing block is a function and scoping should be treated
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|  * as such.  Returning early may be performed with a bare "return;" statement.
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|  *
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|  * EXPECT_* and ASSERT_* are valid in a TEST() { } context.
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|  */
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| #define TEST(test_name) __TEST_IMPL(test_name, -1)
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| 
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| /**
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|  * TEST_SIGNAL(test_name, signal)
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|  *
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|  * @test_name: test name
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|  * @signal: signal number
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|  *
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|  * .. code-block:: c
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|  *
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|  *     TEST_SIGNAL(name, signal) { implementation }
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|  *
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|  * Defines a test by name and the expected term signal.
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|  * Names must be unique and tests must not be run in parallel.  The
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|  * implementation containing block is a function and scoping should be treated
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|  * as such.  Returning early may be performed with a bare "return;" statement.
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|  *
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|  * EXPECT_* and ASSERT_* are valid in a TEST() { } context.
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|  */
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| #define TEST_SIGNAL(test_name, signal) __TEST_IMPL(test_name, signal)
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| 
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| #define __TEST_IMPL(test_name, _signal) \
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| 	static void test_name(struct __test_metadata *_metadata); \
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| 	static struct __test_metadata _##test_name##_object = \
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| 		{ name: "global." #test_name, \
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| 		  fn: &test_name, termsig: _signal }; \
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| 	static void __attribute__((constructor)) _register_##test_name(void) \
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| 	{ \
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| 		__register_test(&_##test_name##_object); \
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| 	} \
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| 	static void test_name( \
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| 		struct __test_metadata __attribute__((unused)) *_metadata)
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| 
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| /**
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|  * FIXTURE_DATA(datatype_name) - Wraps the struct name so we have one less
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|  * argument to pass around
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|  *
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|  * @datatype_name: datatype name
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|  *
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|  * .. code-block:: c
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|  *
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|  *     FIXTURE_DATA(datatype name)
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|  *
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|  * This call may be used when the type of the fixture data
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|  * is needed.  In general, this should not be needed unless
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|  * the *self* is being passed to a helper directly.
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|  */
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| #define FIXTURE_DATA(datatype_name) struct _test_data_##datatype_name
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| 
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| /**
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|  * FIXTURE(fixture_name) - Called once per fixture to setup the data and
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|  * register
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|  *
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|  * @fixture_name: fixture name
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|  *
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|  * .. code-block:: c
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|  *
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|  *     FIXTURE(datatype name) {
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|  *       type property1;
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|  *       ...
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|  *     };
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|  *
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|  * Defines the data provided to TEST_F()-defined tests as *self*.  It should be
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|  * populated and cleaned up using FIXTURE_SETUP() and FIXTURE_TEARDOWN().
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|  */
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| #define FIXTURE(fixture_name) \
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| 	static void __attribute__((constructor)) \
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| 	_register_##fixture_name##_data(void) \
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| 	{ \
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| 		__fixture_count++; \
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| 	} \
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| 	FIXTURE_DATA(fixture_name)
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| 
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| /**
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|  * FIXTURE_SETUP(fixture_name) - Prepares the setup function for the fixture.
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|  * *_metadata* is included so that EXPECT_* and ASSERT_* work correctly.
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|  *
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|  * @fixture_name: fixture name
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|  *
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|  * .. code-block:: c
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|  *
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|  *     FIXTURE_SETUP(fixture name) { implementation }
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|  *
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|  * Populates the required "setup" function for a fixture.  An instance of the
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|  * datatype defined with FIXTURE_DATA() will be exposed as *self* for the
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|  * implementation.
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|  *
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|  * ASSERT_* are valid for use in this context and will prempt the execution
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|  * of any dependent fixture tests.
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|  *
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|  * A bare "return;" statement may be used to return early.
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|  */
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| #define FIXTURE_SETUP(fixture_name) \
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| 	void fixture_name##_setup( \
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| 		struct __test_metadata __attribute__((unused)) *_metadata, \
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| 		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
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| /**
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|  * FIXTURE_TEARDOWN(fixture_name)
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|  * *_metadata* is included so that EXPECT_* and ASSERT_* work correctly.
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|  *
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|  * @fixture_name: fixture name
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|  *
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|  * .. code-block:: c
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|  *
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|  *     FIXTURE_TEARDOWN(fixture name) { implementation }
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|  *
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|  * Populates the required "teardown" function for a fixture.  An instance of the
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|  * datatype defined with FIXTURE_DATA() will be exposed as *self* for the
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|  * implementation to clean up.
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|  *
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|  * A bare "return;" statement may be used to return early.
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|  */
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| #define FIXTURE_TEARDOWN(fixture_name) \
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| 	void fixture_name##_teardown( \
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| 		struct __test_metadata __attribute__((unused)) *_metadata, \
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| 		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
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| 
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| /**
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|  * TEST_F(fixture_name, test_name) - Emits test registration and helpers for
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|  * fixture-based test cases
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|  *
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|  * @fixture_name: fixture name
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|  * @test_name: test name
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|  *
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|  * .. code-block:: c
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|  *
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|  *     TEST_F(fixture, name) { implementation }
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|  *
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|  * Defines a test that depends on a fixture (e.g., is part of a test case).
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|  * Very similar to TEST() except that *self* is the setup instance of fixture's
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|  * datatype exposed for use by the implementation.
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|  *
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|  * Warning: use of ASSERT_* here will skip TEARDOWN.
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|  */
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| /* TODO(wad) register fixtures on dedicated test lists. */
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| #define TEST_F(fixture_name, test_name) \
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| 	__TEST_F_IMPL(fixture_name, test_name, -1)
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| 
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| #define TEST_F_SIGNAL(fixture_name, test_name, signal) \
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| 	__TEST_F_IMPL(fixture_name, test_name, signal)
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| 
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| #define __TEST_F_IMPL(fixture_name, test_name, signal) \
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| 	static void fixture_name##_##test_name( \
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| 		struct __test_metadata *_metadata, \
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| 		FIXTURE_DATA(fixture_name) *self); \
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| 	static inline void wrapper_##fixture_name##_##test_name( \
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| 		struct __test_metadata *_metadata) \
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| 	{ \
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| 		/* fixture data is alloced, setup, and torn down per call. */ \
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| 		FIXTURE_DATA(fixture_name) self; \
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| 		memset(&self, 0, sizeof(FIXTURE_DATA(fixture_name))); \
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| 		fixture_name##_setup(_metadata, &self); \
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| 		/* Let setup failure terminate early. */ \
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| 		if (!_metadata->passed) \
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| 			return; \
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| 		fixture_name##_##test_name(_metadata, &self); \
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| 		fixture_name##_teardown(_metadata, &self); \
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| 	} \
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| 	static struct __test_metadata \
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| 		      _##fixture_name##_##test_name##_object = { \
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| 		name: #fixture_name "." #test_name, \
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| 		fn: &wrapper_##fixture_name##_##test_name, \
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| 		termsig: signal, \
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| 	 }; \
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| 	static void __attribute__((constructor)) \
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| 			_register_##fixture_name##_##test_name(void) \
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| 	{ \
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| 		__register_test(&_##fixture_name##_##test_name##_object); \
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| 	} \
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| 	static void fixture_name##_##test_name( \
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| 		struct __test_metadata __attribute__((unused)) *_metadata, \
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| 		FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
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| 
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| /**
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|  * TEST_HARNESS_MAIN - Simple wrapper to run the test harness
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|  *
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|  * .. code-block:: c
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|  *
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|  *     TEST_HARNESS_MAIN
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|  *
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|  * Use once to append a main() to the test file.
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|  */
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| #define TEST_HARNESS_MAIN \
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| 	static void __attribute__((constructor)) \
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| 	__constructor_order_last(void) \
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| 	{ \
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| 		if (!__constructor_order) \
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| 			__constructor_order = _CONSTRUCTOR_ORDER_BACKWARD; \
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| 	} \
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| 	int main(int argc, char **argv) { \
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| 		return test_harness_run(argc, argv); \
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| 	}
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| 
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| /**
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|  * DOC: operators
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|  *
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|  * Operators for use in TEST() and TEST_F().
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|  * ASSERT_* calls will stop test execution immediately.
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|  * EXPECT_* calls will emit a failure warning, note it, and continue.
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|  */
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| 
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| /**
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|  * ASSERT_EQ(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_EQ(expected, measured): expected == measured
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|  */
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| #define ASSERT_EQ(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, ==, 1)
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| 
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| /**
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|  * ASSERT_NE(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_NE(expected, measured): expected != measured
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|  */
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| #define ASSERT_NE(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, !=, 1)
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| 
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| /**
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|  * ASSERT_LT(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_LT(expected, measured): expected < measured
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|  */
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| #define ASSERT_LT(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, <, 1)
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| 
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| /**
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|  * ASSERT_LE(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_LE(expected, measured): expected <= measured
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|  */
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| #define ASSERT_LE(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, <=, 1)
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| 
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| /**
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|  * ASSERT_GT(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_GT(expected, measured): expected > measured
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|  */
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| #define ASSERT_GT(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, >, 1)
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| 
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| /**
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|  * ASSERT_GE(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_GE(expected, measured): expected >= measured
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|  */
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| #define ASSERT_GE(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, >=, 1)
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| 
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| /**
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|  * ASSERT_NULL(seen)
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|  *
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|  * @seen: measured value
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|  *
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|  * ASSERT_NULL(measured): NULL == measured
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|  */
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| #define ASSERT_NULL(seen) \
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| 	__EXPECT(NULL, "NULL", seen, #seen, ==, 1)
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| 
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| /**
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|  * ASSERT_TRUE(seen)
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|  *
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|  * @seen: measured value
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|  *
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|  * ASSERT_TRUE(measured): measured != 0
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|  */
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| #define ASSERT_TRUE(seen) \
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| 	__EXPECT(0, "0", seen, #seen, !=, 1)
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| 
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| /**
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|  * ASSERT_FALSE(seen)
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|  *
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|  * @seen: measured value
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|  *
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|  * ASSERT_FALSE(measured): measured == 0
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|  */
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| #define ASSERT_FALSE(seen) \
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| 	__EXPECT(0, "0", seen, #seen, ==, 1)
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| 
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| /**
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|  * ASSERT_STREQ(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_STREQ(expected, measured): !strcmp(expected, measured)
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|  */
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| #define ASSERT_STREQ(expected, seen) \
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| 	__EXPECT_STR(expected, seen, ==, 1)
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| 
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| /**
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|  * ASSERT_STRNE(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * ASSERT_STRNE(expected, measured): strcmp(expected, measured)
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|  */
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| #define ASSERT_STRNE(expected, seen) \
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| 	__EXPECT_STR(expected, seen, !=, 1)
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| 
 | |
| /**
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|  * EXPECT_EQ(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * EXPECT_EQ(expected, measured): expected == measured
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|  */
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| #define EXPECT_EQ(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, ==, 0)
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| 
 | |
| /**
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|  * EXPECT_NE(expected, seen)
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|  *
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|  * @expected: expected value
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|  * @seen: measured value
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|  *
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|  * EXPECT_NE(expected, measured): expected != measured
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|  */
 | |
| #define EXPECT_NE(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, !=, 0)
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| 
 | |
| /**
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|  * EXPECT_LT(expected, seen)
 | |
|  *
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|  * @expected: expected value
 | |
|  * @seen: measured value
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|  *
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|  * EXPECT_LT(expected, measured): expected < measured
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|  */
 | |
| #define EXPECT_LT(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, <, 0)
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| 
 | |
| /**
 | |
|  * EXPECT_LE(expected, seen)
 | |
|  *
 | |
|  * @expected: expected value
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_LE(expected, measured): expected <= measured
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|  */
 | |
| #define EXPECT_LE(expected, seen) \
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| 	__EXPECT(expected, #expected, seen, #seen, <=, 0)
 | |
| 
 | |
| /**
 | |
|  * EXPECT_GT(expected, seen)
 | |
|  *
 | |
|  * @expected: expected value
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_GT(expected, measured): expected > measured
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|  */
 | |
| #define EXPECT_GT(expected, seen) \
 | |
| 	__EXPECT(expected, #expected, seen, #seen, >, 0)
 | |
| 
 | |
| /**
 | |
|  * EXPECT_GE(expected, seen)
 | |
|  *
 | |
|  * @expected: expected value
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_GE(expected, measured): expected >= measured
 | |
|  */
 | |
| #define EXPECT_GE(expected, seen) \
 | |
| 	__EXPECT(expected, #expected, seen, #seen, >=, 0)
 | |
| 
 | |
| /**
 | |
|  * EXPECT_NULL(seen)
 | |
|  *
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_NULL(measured): NULL == measured
 | |
|  */
 | |
| #define EXPECT_NULL(seen) \
 | |
| 	__EXPECT(NULL, "NULL", seen, #seen, ==, 0)
 | |
| 
 | |
| /**
 | |
|  * EXPECT_TRUE(seen)
 | |
|  *
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_TRUE(measured): 0 != measured
 | |
|  */
 | |
| #define EXPECT_TRUE(seen) \
 | |
| 	__EXPECT(0, "0", seen, #seen, !=, 0)
 | |
| 
 | |
| /**
 | |
|  * EXPECT_FALSE(seen)
 | |
|  *
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_FALSE(measured): 0 == measured
 | |
|  */
 | |
| #define EXPECT_FALSE(seen) \
 | |
| 	__EXPECT(0, "0", seen, #seen, ==, 0)
 | |
| 
 | |
| /**
 | |
|  * EXPECT_STREQ(expected, seen)
 | |
|  *
 | |
|  * @expected: expected value
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_STREQ(expected, measured): !strcmp(expected, measured)
 | |
|  */
 | |
| #define EXPECT_STREQ(expected, seen) \
 | |
| 	__EXPECT_STR(expected, seen, ==, 0)
 | |
| 
 | |
| /**
 | |
|  * EXPECT_STRNE(expected, seen)
 | |
|  *
 | |
|  * @expected: expected value
 | |
|  * @seen: measured value
 | |
|  *
 | |
|  * EXPECT_STRNE(expected, measured): strcmp(expected, measured)
 | |
|  */
 | |
| #define EXPECT_STRNE(expected, seen) \
 | |
| 	__EXPECT_STR(expected, seen, !=, 0)
 | |
| 
 | |
| #define ARRAY_SIZE(a)	(sizeof(a) / sizeof(a[0]))
 | |
| 
 | |
| /* Support an optional handler after and ASSERT_* or EXPECT_*.  The approach is
 | |
|  * not thread-safe, but it should be fine in most sane test scenarios.
 | |
|  *
 | |
|  * Using __bail(), which optionally abort()s, is the easiest way to early
 | |
|  * return while still providing an optional block to the API consumer.
 | |
|  */
 | |
| #define OPTIONAL_HANDLER(_assert) \
 | |
| 	for (; _metadata->trigger; _metadata->trigger = \
 | |
| 			__bail(_assert, _metadata->no_print, _metadata->step))
 | |
| 
 | |
| #define __INC_STEP(_metadata) \
 | |
| 	if (_metadata->passed && _metadata->step < 255) \
 | |
| 		_metadata->step++;
 | |
| 
 | |
| #define __EXPECT(_expected, _expected_str, _seen, _seen_str, _t, _assert) do { \
 | |
| 	/* Avoid multiple evaluation of the cases */ \
 | |
| 	__typeof__(_expected) __exp = (_expected); \
 | |
| 	__typeof__(_seen) __seen = (_seen); \
 | |
| 	if (_assert) __INC_STEP(_metadata); \
 | |
| 	if (!(__exp _t __seen)) { \
 | |
| 		unsigned long long __exp_print = (uintptr_t)__exp; \
 | |
| 		unsigned long long __seen_print = (uintptr_t)__seen; \
 | |
| 		__TH_LOG("Expected %s (%llu) %s %s (%llu)", \
 | |
| 			 _expected_str, __exp_print, #_t, \
 | |
| 			 _seen_str, __seen_print); \
 | |
| 		_metadata->passed = 0; \
 | |
| 		/* Ensure the optional handler is triggered */ \
 | |
| 		_metadata->trigger = 1; \
 | |
| 	} \
 | |
| } while (0); OPTIONAL_HANDLER(_assert)
 | |
| 
 | |
| #define __EXPECT_STR(_expected, _seen, _t, _assert) do { \
 | |
| 	const char *__exp = (_expected); \
 | |
| 	const char *__seen = (_seen); \
 | |
| 	if (_assert) __INC_STEP(_metadata); \
 | |
| 	if (!(strcmp(__exp, __seen) _t 0))  { \
 | |
| 		__TH_LOG("Expected '%s' %s '%s'.", __exp, #_t, __seen); \
 | |
| 		_metadata->passed = 0; \
 | |
| 		_metadata->trigger = 1; \
 | |
| 	} \
 | |
| } while (0); OPTIONAL_HANDLER(_assert)
 | |
| 
 | |
| /* Contains all the information for test execution and status checking. */
 | |
| struct __test_metadata {
 | |
| 	const char *name;
 | |
| 	void (*fn)(struct __test_metadata *);
 | |
| 	int termsig;
 | |
| 	int passed;
 | |
| 	int trigger; /* extra handler after the evaluation */
 | |
| 	__u8 step;
 | |
| 	bool no_print; /* manual trigger when TH_LOG_STREAM is not available */
 | |
| 	struct __test_metadata *prev, *next;
 | |
| };
 | |
| 
 | |
| /* Storage for the (global) tests to be run. */
 | |
| static struct __test_metadata *__test_list;
 | |
| static unsigned int __test_count;
 | |
| static unsigned int __fixture_count;
 | |
| static int __constructor_order;
 | |
| 
 | |
| #define _CONSTRUCTOR_ORDER_FORWARD   1
 | |
| #define _CONSTRUCTOR_ORDER_BACKWARD -1
 | |
| 
 | |
| /*
 | |
|  * Since constructors are called in reverse order, reverse the test
 | |
|  * list so tests are run in source declaration order.
 | |
|  * https://gcc.gnu.org/onlinedocs/gccint/Initialization.html
 | |
|  * However, it seems not all toolchains do this correctly, so use
 | |
|  * __constructor_order to detect which direction is called first
 | |
|  * and adjust list building logic to get things running in the right
 | |
|  * direction.
 | |
|  */
 | |
| static inline void __register_test(struct __test_metadata *t)
 | |
| {
 | |
| 	__test_count++;
 | |
| 	/* Circular linked list where only prev is circular. */
 | |
| 	if (__test_list == NULL) {
 | |
| 		__test_list = t;
 | |
| 		t->next = NULL;
 | |
| 		t->prev = t;
 | |
| 		return;
 | |
| 	}
 | |
| 	if (__constructor_order == _CONSTRUCTOR_ORDER_FORWARD) {
 | |
| 		t->next = NULL;
 | |
| 		t->prev = __test_list->prev;
 | |
| 		t->prev->next = t;
 | |
| 		__test_list->prev = t;
 | |
| 	} else {
 | |
| 		t->next = __test_list;
 | |
| 		t->next->prev = t;
 | |
| 		t->prev = t;
 | |
| 		__test_list = t;
 | |
| 	}
 | |
| }
 | |
| 
 | |
| static inline int __bail(int for_realz, bool no_print, __u8 step)
 | |
| {
 | |
| 	if (for_realz) {
 | |
| 		if (no_print)
 | |
| 			_exit(step);
 | |
| 		abort();
 | |
| 	}
 | |
| 	return 0;
 | |
| }
 | |
| 
 | |
| void __run_test(struct __test_metadata *t)
 | |
| {
 | |
| 	pid_t child_pid;
 | |
| 	int status;
 | |
| 
 | |
| 	t->passed = 1;
 | |
| 	t->trigger = 0;
 | |
| 	printf("[ RUN      ] %s\n", t->name);
 | |
| 	child_pid = fork();
 | |
| 	if (child_pid < 0) {
 | |
| 		printf("ERROR SPAWNING TEST CHILD\n");
 | |
| 		t->passed = 0;
 | |
| 	} else if (child_pid == 0) {
 | |
| 		t->fn(t);
 | |
| 		/* return the step that failed or 0 */
 | |
| 		_exit(t->passed ? 0 : t->step);
 | |
| 	} else {
 | |
| 		/* TODO(wad) add timeout support. */
 | |
| 		waitpid(child_pid, &status, 0);
 | |
| 		if (WIFEXITED(status)) {
 | |
| 			t->passed = t->termsig == -1 ? !WEXITSTATUS(status) : 0;
 | |
| 			if (t->termsig != -1) {
 | |
| 				fprintf(TH_LOG_STREAM,
 | |
| 					"%s: Test exited normally "
 | |
| 					"instead of by signal (code: %d)\n",
 | |
| 					t->name,
 | |
| 					WEXITSTATUS(status));
 | |
| 			} else if (!t->passed) {
 | |
| 				fprintf(TH_LOG_STREAM,
 | |
| 					"%s: Test failed at step #%d\n",
 | |
| 					t->name,
 | |
| 					WEXITSTATUS(status));
 | |
| 			}
 | |
| 		} else if (WIFSIGNALED(status)) {
 | |
| 			t->passed = 0;
 | |
| 			if (WTERMSIG(status) == SIGABRT) {
 | |
| 				fprintf(TH_LOG_STREAM,
 | |
| 					"%s: Test terminated by assertion\n",
 | |
| 					t->name);
 | |
| 			} else if (WTERMSIG(status) == t->termsig) {
 | |
| 				t->passed = 1;
 | |
| 			} else {
 | |
| 				fprintf(TH_LOG_STREAM,
 | |
| 					"%s: Test terminated unexpectedly "
 | |
| 					"by signal %d\n",
 | |
| 					t->name,
 | |
| 					WTERMSIG(status));
 | |
| 			}
 | |
| 		} else {
 | |
| 			fprintf(TH_LOG_STREAM,
 | |
| 				"%s: Test ended in some other way [%u]\n",
 | |
| 				t->name,
 | |
| 				status);
 | |
| 		}
 | |
| 	}
 | |
| 	printf("[     %4s ] %s\n", (t->passed ? "OK" : "FAIL"), t->name);
 | |
| }
 | |
| 
 | |
| static int test_harness_run(int __attribute__((unused)) argc,
 | |
| 			    char __attribute__((unused)) **argv)
 | |
| {
 | |
| 	struct __test_metadata *t;
 | |
| 	int ret = 0;
 | |
| 	unsigned int count = 0;
 | |
| 	unsigned int pass_count = 0;
 | |
| 
 | |
| 	/* TODO(wad) add optional arguments similar to gtest. */
 | |
| 	printf("[==========] Running %u tests from %u test cases.\n",
 | |
| 	       __test_count, __fixture_count + 1);
 | |
| 	for (t = __test_list; t; t = t->next) {
 | |
| 		count++;
 | |
| 		__run_test(t);
 | |
| 		if (t->passed)
 | |
| 			pass_count++;
 | |
| 		else
 | |
| 			ret = 1;
 | |
| 	}
 | |
| 	printf("[==========] %u / %u tests passed.\n", pass_count, count);
 | |
| 	printf("[  %s  ]\n", (ret ? "FAILED" : "PASSED"));
 | |
| 	return ret;
 | |
| }
 | |
| 
 | |
| static void __attribute__((constructor)) __constructor_order_first(void)
 | |
| {
 | |
| 	if (!__constructor_order)
 | |
| 		__constructor_order = _CONSTRUCTOR_ORDER_FORWARD;
 | |
| }
 | |
| 
 | |
| #endif  /* __KSELFTEST_HARNESS_H */
 | 
