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328 lines
9.8 KiB
328 lines
9.8 KiB
/*
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* Copyright (C) 2019 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 <errno.h>
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#include <getopt.h>
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#include <inttypes.h>
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#include <libgen.h>
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#include <stdarg.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/wait.h>
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#include <time.h>
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#include <unistd.h>
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#include <string>
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#include <vector>
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#include <android-base/chrono_utils.h>
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#include <android-base/file.h>
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#include <android-base/stringprintf.h>
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#include <android-base/strings.h>
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#include <android-base/test_utils.h>
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// Example:
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// name: unzip -n
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// before: mkdir -p d1/d2
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// before: echo b > d1/d2/a.txt
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// command: unzip -q -n $FILES/zip/example.zip d1/d2/a.txt && cat d1/d2/a.txt
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// expected-stdout:
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// b
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struct Test {
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std::string test_filename;
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std::string name;
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std::string command;
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std::vector<std::string> befores;
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std::vector<std::string> afters;
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std::string expected_stdout;
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std::string expected_stderr;
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int exit_status = 0;
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};
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static const char* g_progname;
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static bool g_verbose;
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static const char* g_file;
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static size_t g_line;
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enum Color { kRed, kGreen };
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static void Print(Color c, const char* lhs, const char* fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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if (isatty(0)) printf("%s", (c == kRed) ? "\e[31m" : "\e[32m");
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printf("%s%s", lhs, isatty(0) ? "\e[0m" : "");
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vfprintf(stdout, fmt, ap);
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putchar('\n');
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va_end(ap);
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}
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static void Die(int error, const char* fmt, ...) {
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, "%s: ", g_progname);
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vfprintf(stderr, fmt, ap);
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if (error != 0) fprintf(stderr, ": %s", strerror(error));
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fprintf(stderr, "\n");
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va_end(ap);
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_exit(1);
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}
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static void V(const char* fmt, ...) {
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if (!g_verbose) return;
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va_list ap;
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va_start(ap, fmt);
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fprintf(stderr, " - ");
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vfprintf(stderr, fmt, ap);
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fprintf(stderr, "\n");
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va_end(ap);
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}
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static void SetField(const char* what, std::string* field, std::string_view value) {
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if (!field->empty()) {
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Die(0, "%s:%zu: %s already set to '%s'", g_file, g_line, what, field->c_str());
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}
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field->assign(value);
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}
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// Similar to ConsumePrefix, but also trims, so "key:value" and "key: value"
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// are equivalent.
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static bool Match(std::string* s, const std::string& prefix) {
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if (!android::base::StartsWith(*s, prefix)) return false;
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s->assign(android::base::Trim(s->substr(prefix.length())));
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return true;
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}
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static void CollectTests(std::vector<Test>* tests, const char* test_filename) {
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std::string absolute_test_filename;
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if (!android::base::Realpath(test_filename, &absolute_test_filename)) {
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Die(errno, "realpath '%s'", test_filename);
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}
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std::string content;
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if (!android::base::ReadFileToString(test_filename, &content)) {
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Die(errno, "couldn't read '%s'", test_filename);
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}
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size_t count = 0;
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g_file = test_filename;
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g_line = 0;
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auto lines = android::base::Split(content, "\n");
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std::unique_ptr<Test> test(new Test);
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while (g_line < lines.size()) {
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auto line = lines[g_line++];
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if (line.empty() || line[0] == '#') continue;
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if (line[0] == '-') {
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if (test->name.empty() || test->command.empty()) {
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Die(0, "%s:%zu: each test requires both a name and a command", g_file, g_line);
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}
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test->test_filename = absolute_test_filename;
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tests->push_back(*test.release());
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test.reset(new Test);
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++count;
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} else if (Match(&line, "name:")) {
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SetField("name", &test->name, line);
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} else if (Match(&line, "command:")) {
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SetField("command", &test->command, line);
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} else if (Match(&line, "before:")) {
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test->befores.push_back(line);
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} else if (Match(&line, "after:")) {
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test->afters.push_back(line);
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} else if (Match(&line, "expected-exit-status:")) {
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char* end_p;
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errno = 0;
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test->exit_status = strtol(line.c_str(), &end_p, 10);
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if (errno != 0 || *end_p != '\0') {
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Die(0, "%s:%zu: bad exit status: \"%s\"", g_file, g_line, line.c_str());
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}
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} else if (Match(&line, "expected-stdout:")) {
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// Collect tab-indented lines.
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std::string text;
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while (g_line < lines.size() && !lines[g_line].empty() && lines[g_line][0] == '\t') {
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text += lines[g_line++].substr(1) + "\n";
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}
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SetField("expected stdout", &test->expected_stdout, text);
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} else {
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Die(0, "%s:%zu: syntax error: \"%s\"", g_file, g_line, line.c_str());
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}
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}
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if (count == 0) Die(0, "no tests found in '%s'", g_file);
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}
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static const char* Plural(size_t n) {
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return (n == 1) ? "" : "s";
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}
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static std::string ExitStatusToString(int status) {
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if (WIFSIGNALED(status)) {
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return android::base::StringPrintf("was killed by signal %d (%s)", WTERMSIG(status),
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strsignal(WTERMSIG(status)));
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}
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if (WIFSTOPPED(status)) {
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return android::base::StringPrintf("was stopped by signal %d (%s)", WSTOPSIG(status),
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strsignal(WSTOPSIG(status)));
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}
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return android::base::StringPrintf("exited with status %d", WEXITSTATUS(status));
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}
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static bool RunCommands(const char* what, const std::vector<std::string>& commands) {
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bool result = true;
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for (auto& command : commands) {
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V("running %s \"%s\"", what, command.c_str());
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int exit_status = system(command.c_str());
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if (exit_status != 0) {
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result = false;
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fprintf(stderr, "Command (%s) \"%s\" %s\n", what, command.c_str(),
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ExitStatusToString(exit_status).c_str());
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}
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}
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return result;
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}
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static bool CheckOutput(const char* what, std::string actual_output,
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const std::string& expected_output, const std::string& FILES) {
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// Rewrite the output to reverse any expansion of $FILES.
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actual_output = android::base::StringReplace(actual_output, FILES, "$FILES", true);
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bool result = (actual_output == expected_output);
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if (!result) {
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fprintf(stderr, "Incorrect %s.\nExpected:\n%s\nActual:\n%s\n", what, expected_output.c_str(),
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actual_output.c_str());
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}
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return result;
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}
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static int RunTests(const std::vector<Test>& tests) {
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std::vector<std::string> failures;
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Print(kGreen, "[==========]", " Running %zu tests.", tests.size());
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android::base::Timer total_timer;
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for (const auto& test : tests) {
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bool failed = false;
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Print(kGreen, "[ RUN ]", " %s", test.name.c_str());
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android::base::Timer test_timer;
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// Set $FILES for this test.
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std::string FILES = android::base::Dirname(test.test_filename) + "/files";
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V("setenv(\"FILES\", \"%s\")", FILES.c_str());
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setenv("FILES", FILES.c_str(), 1);
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// Make a safe space to run the test.
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TemporaryDir td;
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V("chdir(\"%s\")", td.path);
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if (chdir(td.path)) Die(errno, "chdir(\"%s\")", td.path);
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// Perform any setup specified for this test.
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if (!RunCommands("before", test.befores)) failed = true;
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if (!failed) {
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V("running command \"%s\"", test.command.c_str());
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CapturedStdout test_stdout;
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CapturedStderr test_stderr;
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int status = system(test.command.c_str());
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test_stdout.Stop();
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test_stderr.Stop();
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V("system() returned status %d", status);
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if (WEXITSTATUS(status) != test.exit_status) {
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failed = true;
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fprintf(stderr, "Incorrect exit status: expected %d but %s\n", test.exit_status,
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ExitStatusToString(status).c_str());
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}
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if (!CheckOutput("stdout", test_stdout.str(), test.expected_stdout, FILES)) failed = true;
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if (!CheckOutput("stderr", test_stderr.str(), test.expected_stderr, FILES)) failed = true;
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if (!RunCommands("after", test.afters)) failed = true;
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}
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std::stringstream duration;
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duration << test_timer;
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if (failed) {
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failures.push_back(test.name);
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Print(kRed, "[ FAILED ]", " %s (%s)", test.name.c_str(), duration.str().c_str());
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} else {
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Print(kGreen, "[ OK ]", " %s (%s)", test.name.c_str(), duration.str().c_str());
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}
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}
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// Summarize the whole run and explicitly list all the failures.
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std::stringstream duration;
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duration << total_timer;
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Print(kGreen, "[==========]", " %zu tests ran. (%s total)", tests.size(), duration.str().c_str());
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size_t fail_count = failures.size();
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size_t pass_count = tests.size() - fail_count;
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Print(kGreen, "[ PASSED ]", " %zu test%s.", pass_count, Plural(pass_count));
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if (!failures.empty()) {
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Print(kRed, "[ FAILED ]", " %zu test%s.", fail_count, Plural(fail_count));
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for (auto& failure : failures) {
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Print(kRed, "[ FAILED ]", " %s", failure.c_str());
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}
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}
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return (fail_count == 0) ? 0 : 1;
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}
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static void ShowHelp(bool full) {
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fprintf(full ? stdout : stderr, "usage: %s [-v] FILE...\n", g_progname);
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if (!full) exit(EXIT_FAILURE);
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printf(
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"\n"
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"Run tests.\n"
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"\n"
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"-v\tVerbose (show workings)\n");
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exit(EXIT_SUCCESS);
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}
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int main(int argc, char* argv[]) {
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g_progname = basename(argv[0]);
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static const struct option opts[] = {
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{"help", no_argument, 0, 'h'},
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{"verbose", no_argument, 0, 'v'},
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{},
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};
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int opt;
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while ((opt = getopt_long(argc, argv, "hv", opts, nullptr)) != -1) {
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switch (opt) {
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case 'h':
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ShowHelp(true);
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break;
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case 'v':
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g_verbose = true;
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break;
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default:
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ShowHelp(false);
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break;
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}
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}
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argv += optind;
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if (!*argv) Die(0, "no test files provided");
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std::vector<Test> tests;
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for (; *argv; ++argv) CollectTests(&tests, *argv);
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return RunTests(tests);
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}
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