162 lines
4.1 KiB
C
162 lines
4.1 KiB
C
/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.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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#include <ctest/ctest.h>
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#define MAX_TESTS 255
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/** Semi-random number used to identify assertion errors. */
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#define ASSERTION_ERROR 42
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typedef void TestCase();
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/** A suite of tests. */
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typedef struct {
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int size;
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const char* testNames[MAX_TESTS];
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TestCase* tests[MAX_TESTS];
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int currentTest;
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FILE* out;
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} TestSuite;
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/** Gets the test suite. Creates it if necessary. */
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static TestSuite* getTestSuite() {
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static TestSuite* suite = NULL;
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if (suite != NULL) {
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return suite;
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}
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suite = calloc(1, sizeof(TestSuite));
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assert(suite != NULL);
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suite->out = tmpfile();
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assert(suite->out != NULL);
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return suite;
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}
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void addNamedTest(const char* name, TestCase* test) {
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TestSuite* testSuite = getTestSuite();
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assert(testSuite->size <= MAX_TESTS);
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int index = testSuite->size;
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testSuite->testNames[index] = name;
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testSuite->tests[index] = test;
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testSuite->size++;
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}
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/** Prints failures to stderr. */
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static void printFailures(int failures) {
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TestSuite* suite = getTestSuite();
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fprintf(stderr, "FAILURE! %d of %d tests failed. Failures:\n",
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failures, suite->size);
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// Copy test output to stdout.
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rewind(suite->out);
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char buffer[512];
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size_t read;
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while ((read = fread(buffer, sizeof(char), 512, suite->out)) > 0) {
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// TODO: Make sure we actually wrote 'read' bytes.
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fwrite(buffer, sizeof(char), read, stderr);
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}
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}
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/** Runs a single test case. */
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static int runCurrentTest() {
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TestSuite* suite = getTestSuite();
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pid_t pid = fork();
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if (pid == 0) {
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// Child process. Runs test case.
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suite->tests[suite->currentTest]();
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// Exit successfully.
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exit(0);
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} else if (pid < 0) {
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fprintf(stderr, "Fork failed.");
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exit(1);
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} else {
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// Parent process. Wait for child.
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int status;
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waitpid(pid, &status, 0);
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if (!WIFEXITED(status)) {
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return -1;
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}
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return WEXITSTATUS(status);
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}
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}
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void runTests() {
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TestSuite* suite = getTestSuite();
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int failures = 0;
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for (suite->currentTest = 0; suite->currentTest < suite->size;
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suite->currentTest++) {
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// Flush stdout before forking.
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fflush(stdout);
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int result = runCurrentTest();
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if (result != 0) {
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printf("X");
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failures++;
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// Handle errors other than assertions.
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if (result != ASSERTION_ERROR) {
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// TODO: Report file name.
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fprintf(suite->out, "Process failed: [%s] status: %d\n",
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suite->testNames[suite->currentTest], result);
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fflush(suite->out);
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}
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} else {
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printf(".");
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}
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}
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printf("\n");
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if (failures > 0) {
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printFailures(failures);
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} else {
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printf("SUCCESS! %d tests ran successfully.\n", suite->size);
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}
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}
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void assertTrueWithSource(int value, const char* file, int line, char* message) {
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if (!value) {
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TestSuite* suite = getTestSuite();
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fprintf(suite->out, "Assertion failed: [%s:%d] %s: %s\n", file, line,
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suite->testNames[suite->currentTest], message);
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fflush(suite->out);
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// Exit the process for this test case.
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exit(ASSERTION_ERROR);
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}
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}
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