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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif
#include "base/command_line.h"
#include "base/functional/bind.h"
#include "base/notreached.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/stringprintf.h"
#include "base/test/launcher/unit_test_launcher.h"
#include "base/test/test_suite.h"
#include "base/test/test_switches.h"
#include "build/blink_buildflags.h"
#include "testing/gtest/include/gtest/gtest.h"
#include <iostream>
// Update this when adding a new test to rust_test_interop_unittest.rs.
int kNumTests = 10;
bool IsSubprocess() {
#if BUILDFLAG(USE_BLINK)
// The test launching process spawns a subprocess to run tests, and it
// includes this flag.
return base::CommandLine::ForCurrentProcess()->HasSwitch(
base::kGTestFlagfileFlag);
#else
// This function should only be called if the standard test launcher is
// being used.
NOTREACHED();
#endif
}
int VerifyTestsRan() {
// Double-check that we actually ran all the tests. If this fails we'll
// see all the tests marked as "fail on exit" since the whole process is
// considered a failure.
auto succeed = testing::UnitTest::GetInstance()->successful_test_count();
int expected_success = kNumTests;
if (succeed != expected_success) {
std::cerr << "***ERROR***: Expected " << expected_success
<< " tests to succeed, but we saw: " << succeed << '\n';
return 1;
} else {
std::cerr << "***OK***: Ran " << succeed << " tests, yay!\n";
return 0;
}
}
int main(int argc, char** argv) {
// Run tests in a single process so we can count the tests.
std::string single_process = base::StringPrintf("--test-launcher-jobs=1");
// We verify that the test suite and test name written in the #[gtest] macro
// is being propagated to Gtest by using a test filter that matches on the
// test suites/names.
std::string filter = "--gtest_filter=Test.*:ExactSuite.ExactTest";
auto my_argv = std::vector<char*>();
for (int i = 0; i < argc; ++i) {
my_argv.push_back(argv[i]);
}
my_argv.push_back(single_process.data());
my_argv.push_back(filter.data());
my_argv.push_back(nullptr); // GTest reads past argc until null.
struct InteropTestSuite : public base::TestSuite {
InteropTestSuite(int argc, char** argv) : base::TestSuite(argc, argv) {}
int Run() {
int result = base::TestSuite::Run();
#if !BUILDFLAG(USE_BLINK)
// If the tests ran in the main process (on iOS), we'll verify here.
if (!result) {
return VerifyTestsRan();
}
#endif
return result;
}
};
InteropTestSuite test_suite(my_argv.size() - 1u, my_argv.data());
// Note: With the iOS test launcher, this does not return, so we do the check
// for which tests ran in the TestSuite.
int result = base::LaunchUnitTests(
my_argv.size() - 1u, my_argv.data(),
base::BindOnce(&InteropTestSuite::Run, base::Unretained(&test_suite)));
// If the tests ran in a child process, we'll verify here.
if (!result && IsSubprocess()) {
return VerifyTestsRan();
}
return result;
}
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