| 1 | /*
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| 2 | * Copyright (c) 2012-2013 Vojtech Horky
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @file
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| 30 | *
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| 31 | * Test execution routines.
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| 32 | */
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| 33 |
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| 34 | #include "internal.h"
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| 35 | #ifndef PCUT_NO_LONG_JUMP
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| 36 | #include <setjmp.h>
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| 37 | #endif
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| 38 |
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| 39 | #ifndef PCUT_NO_LONG_JUMP
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| 40 | /** Long-jump buffer. */
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| 41 | static jmp_buf start_test_jump;
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| 42 | #endif
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| 43 |
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| 44 | /** Whether to run a tear-down function on a failure.
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| 45 | *
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| 46 | * Used to determine whether we are already in a tear-down context.
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| 47 | */
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| 48 | static int execute_teardown_on_failure;
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| 49 |
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| 50 | /** Whether to report test result at all.
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| 51 | *
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| 52 | * Used to determine whether we are the forked or the parent process.
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| 53 | */
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| 54 | static int report_test_result;
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| 55 |
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| 56 | /** Whether to print test error.
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| 57 | *
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| 58 | * Used to determine whether we are the forked or the parent process.
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| 59 | */
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| 60 | static int print_test_error;
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| 61 |
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| 62 | /** Whether leaving a test means a process exit. */
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| 63 | static int leave_means_exit;
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| 64 |
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| 65 | /** Pointer to currently running test. */
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| 66 | static pcut_item_t *current_test = NULL;
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| 67 |
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| 68 | /** Pointer to current test suite. */
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| 69 | static pcut_item_t *current_suite = NULL;
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| 70 |
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| 71 | /** A NULL-like suite. */
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| 72 | static pcut_item_t default_suite;
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| 73 | static int default_suite_initialized = 0;
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| 74 |
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| 75 | static void init_default_suite_when_needed() {
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| 76 | if (default_suite_initialized) {
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| 77 | return;
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| 78 | }
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| 79 | default_suite.id = -1;
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| 80 | default_suite.kind = PCUT_KIND_TESTSUITE;
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| 81 | default_suite.previous = NULL;
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| 82 | default_suite.next = NULL;
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| 83 | default_suite.name = "Default";
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| 84 | default_suite.setup_func = NULL;
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| 85 | default_suite.teardown_func = NULL;
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| 86 | }
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| 87 |
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| 88 | /** Find the suite given test belongs to.
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| 89 | *
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| 90 | * @param it The test.
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| 91 | * @return Always a valid test suite item.
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| 92 | */
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| 93 | static pcut_item_t *pcut_find_parent_suite(pcut_item_t *it) {
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| 94 | while (it != NULL) {
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| 95 | if (it->kind == PCUT_KIND_TESTSUITE) {
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| 96 | return it;
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| 97 | }
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| 98 | it = it->previous;
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| 99 | }
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| 100 | init_default_suite_when_needed();
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| 101 | return &default_suite;
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| 102 | }
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| 103 |
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| 104 | /** Run a set-up (tear-down) function.
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| 105 | *
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| 106 | * @param func Function to run (can be NULL).
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| 107 | */
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| 108 | static void run_setup_teardown(pcut_setup_func_t func) {
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| 109 | if (func != NULL) {
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| 110 | func();
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| 111 | }
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| 112 | }
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| 113 |
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| 114 | /** Terminate current test with given outcome.
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| 115 | *
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| 116 | * @warning This function may execute a long jump or terminate
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| 117 | * current process.
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| 118 | *
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| 119 | * @param outcome Outcome of the current test.
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| 120 | */
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| 121 | static void leave_test(int outcome) {
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| 122 | PCUT_DEBUG("leave_test(outcome=%d), will_exit=%s", outcome,
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| 123 | leave_means_exit ? "yes" : "no");
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| 124 | if (leave_means_exit) {
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| 125 | exit(outcome);
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| 126 | }
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| 127 |
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| 128 | #ifndef PCUT_NO_LONG_JUMP
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| 129 | longjmp(start_test_jump, 1);
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| 130 | #endif
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| 131 | }
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| 132 |
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| 133 | /** Process a failed assertion.
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| 134 | *
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| 135 | * @warning This function calls leave_test() and typically will not
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| 136 | * return.
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| 137 | *
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| 138 | * @param message Message describing the failure.
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| 139 | */
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| 140 | void pcut_failed_assertion(const char *message) {
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| 141 | static const char *prev_message = NULL;
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| 142 | /*
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| 143 | * The assertion failed. We need to abort the current test,
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| 144 | * inform the user and perform some clean-up. That could
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| 145 | * include running the tear-down routine.
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| 146 | */
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| 147 | if (print_test_error) {
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| 148 | pcut_print_fail_message(message);
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| 149 | }
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| 150 |
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| 151 | if (execute_teardown_on_failure) {
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| 152 | execute_teardown_on_failure = 0;
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| 153 | prev_message = message;
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| 154 | run_setup_teardown(current_suite->teardown_func);
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| 155 |
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| 156 | /* Tear-down was okay. */
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| 157 | if (report_test_result) {
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| 158 | pcut_report_test_done(current_test, TEST_OUTCOME_FAIL,
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| 159 | message, NULL, NULL);
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| 160 | }
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| 161 | } else {
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| 162 | if (report_test_result) {
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| 163 | pcut_report_test_done(current_test, TEST_OUTCOME_FAIL,
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| 164 | prev_message, message, NULL);
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| 165 | }
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| 166 | }
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| 167 |
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| 168 | prev_message = NULL;
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| 169 |
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| 170 | leave_test(TEST_OUTCOME_FAIL); /* No return. */
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| 171 | }
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| 172 |
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| 173 | /** Run a test.
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| 174 | *
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| 175 | * @param test Test to execute.
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| 176 | * @return Error status (zero means success).
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| 177 | */
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| 178 | static int run_test(pcut_item_t *test) {
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| 179 | /*
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| 180 | * Set here as the returning point in case of test failure.
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| 181 | * If we get here, it means something failed during the
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| 182 | * test execution.
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| 183 | */
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| 184 | #ifndef PCUT_NO_LONG_JUMP
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| 185 | int test_finished = setjmp(start_test_jump);
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| 186 | if (test_finished) {
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| 187 | return 1;
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| 188 | }
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| 189 | #endif
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| 190 |
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| 191 | if (report_test_result) {
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| 192 | pcut_report_test_start(test);
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| 193 | }
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| 194 |
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| 195 | current_suite = pcut_find_parent_suite(test);
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| 196 | current_test = test;
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| 197 |
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| 198 | pcut_hook_before_test(test);
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| 199 |
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| 200 | /*
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| 201 | * If anything goes wrong, execute the tear-down function
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| 202 | * as well.
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| 203 | */
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| 204 | execute_teardown_on_failure = 1;
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| 205 |
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| 206 | /*
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| 207 | * Run the set-up function.
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| 208 | */
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| 209 | run_setup_teardown(current_suite->setup_func);
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| 210 |
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| 211 | /*
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| 212 | * The setup function was performed, it is time to run
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| 213 | * the actual test.
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| 214 | */
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| 215 | test->test_func();
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| 216 |
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| 217 | /*
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| 218 | * Finally, run the tear-down function. We need to clear
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| 219 | * the flag to prevent endless loop.
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| 220 | */
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| 221 | execute_teardown_on_failure = 0;
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| 222 | run_setup_teardown(current_suite->teardown_func);
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| 223 |
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| 224 | /*
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| 225 | * If we got here, it means everything went well with
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| 226 | * this test.
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| 227 | */
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| 228 | if (report_test_result) {
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| 229 | pcut_report_test_done(current_test, TEST_OUTCOME_PASS,
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| 230 | NULL, NULL, NULL);
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| 231 | }
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| 232 |
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| 233 | return 0;
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| 234 | }
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| 235 |
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| 236 | /** Run a test in a forked mode.
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| 237 | *
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| 238 | * Forked mode means that the caller of the test is already a new
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| 239 | * process running this test only.
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| 240 | *
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| 241 | * @param test Test to execute.
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| 242 | * @return Error status (zero means success).
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| 243 | */
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| 244 | int pcut_run_test_forked(pcut_item_t *test) {
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| 245 | int rc;
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| 246 |
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| 247 | report_test_result = 0;
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| 248 | print_test_error = 1;
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| 249 | leave_means_exit = 1;
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| 250 |
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| 251 | rc = run_test(test);
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| 252 |
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| 253 | current_test = NULL;
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| 254 | current_suite = NULL;
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| 255 |
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| 256 | return rc;
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| 257 | }
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| 258 |
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| 259 | /** Run a test in a single mode.
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| 260 | *
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| 261 | * Single mode means that the test is called in the context of the
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| 262 | * parent process, that is no new process is forked.
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| 263 | *
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| 264 | * @param test Test to execute.
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| 265 | * @return Error status (zero means success).
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| 266 | */
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| 267 | int pcut_run_test_single(pcut_item_t *test) {
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| 268 | int rc;
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| 269 |
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| 270 | report_test_result = 1;
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| 271 | print_test_error = 0;
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| 272 | leave_means_exit = 0;
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| 273 |
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| 274 | rc = run_test(test);
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| 275 |
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| 276 | current_test = NULL;
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| 277 | current_suite = NULL;
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| 278 |
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| 279 | return rc;
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| 280 | }
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| 281 |
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| 282 | /** Tells time-out length for a given test.
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| 283 | *
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| 284 | * @param test Test for which the time-out is questioned.
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| 285 | * @return Timeout in seconds.
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| 286 | */
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| 287 | int pcut_get_test_timeout(pcut_item_t *test) {
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| 288 | int timeout = PCUT_DEFAULT_TEST_TIMEOUT;
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| 289 | pcut_extra_t *extras = test->extras;
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| 290 |
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| 291 |
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| 292 | while (extras->type != PCUT_EXTRA_LAST) {
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| 293 | if (extras->type == PCUT_EXTRA_TIMEOUT) {
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| 294 | timeout = extras->timeout;
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| 295 | }
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| 296 | extras++;
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| 297 | }
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| 298 |
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| 299 | return timeout;
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| 300 | }
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