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Test code that requires test data should call Paths::TestDataRoot() to obtain the test data root. This will use the CRASHPAD_TEST_DATA_ROOT environment variable if set. Otherwise, it will look for test data at known locations relative to the executable path. If the test data is not found in any of these locations, it falls back to using the working directory, the same as the current behavior. BUG=crashpad:4 TEST=crashpad_util_test Paths.TestDataRoot and others R=rsesek@chromium.org, scottmg@chromium.org Review URL: https://codereview.chromium.org/992503002
102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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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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#include "util/test/paths.h"
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#include <stdlib.h>
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#include <sys/stat.h>
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#include "base/logging.h"
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#include "build/build_config.h"
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namespace crashpad {
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namespace test {
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namespace {
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bool IsTestDataRoot(const base::FilePath& candidate) {
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const base::FilePath marker_path =
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candidate.Append(FILE_PATH_LITERAL("util"))
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.Append(FILE_PATH_LITERAL("test"))
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.Append(FILE_PATH_LITERAL("paths_test_data_root.txt"));
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#if !defined(OS_WIN)
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struct stat stat_buf;
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int rv = stat(marker_path.value().c_str(), &stat_buf);
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#else
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struct _stat stat_buf;
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int rv = _wstat(marker_path.value().c_str(), &stat_buf);
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#endif
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return rv == 0;
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}
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base::FilePath TestDataRootInternal() {
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#if !defined(OS_WIN)
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const char* environment_value = getenv("CRASHPAD_TEST_DATA_ROOT");
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#else // defined(OS_WIN)
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const wchar_t* environment_value = _wgetenv(L"CRASHPAD_TEST_DATA_ROOT");
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#endif
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if (environment_value) {
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// It was specified explicitly, so use it even if it seems incorrect.
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if (!IsTestDataRoot(base::FilePath(environment_value))) {
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LOG(WARNING) << "CRASHPAD_TEST_DATA_ROOT seems invalid, honoring anyway";
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}
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return base::FilePath(environment_value);
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}
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// In a standalone build, the test executable is usually at
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// out/{Debug,Release} relative to the Crashpad root.
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const base::FilePath executable = Paths::Executable();
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base::FilePath candidate =
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base::FilePath(executable.DirName()
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.Append(base::FilePath::kParentDirectory)
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.Append(base::FilePath::kParentDirectory));
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if (IsTestDataRoot(candidate)) {
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return candidate;
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}
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// In an in-Chromium build, the test executable is usually at
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// out/{Debug,Release} relative to the Chromium root, and the Crashpad root is
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// at third_party/crashpad/crashpad relative to the Chromium root.
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candidate = candidate.Append(FILE_PATH_LITERAL("third_party"))
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.Append(FILE_PATH_LITERAL("crashpad"))
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.Append(FILE_PATH_LITERAL("crashpad"));
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if (IsTestDataRoot(candidate)) {
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return candidate;
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}
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// If nothing else worked, use the current directory, issuing a warning if it
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// doesn’t seem right.
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if (!IsTestDataRoot(base::FilePath(base::FilePath::kCurrentDirectory))) {
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LOG(WARNING) << "could not locate a valid test data root";
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}
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return base::FilePath(base::FilePath::kCurrentDirectory);
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}
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} // namespace
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// static
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base::FilePath Paths::TestDataRoot() {
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static base::FilePath* test_data_root =
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new base::FilePath(TestDataRootInternal());
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return *test_data_root;
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}
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} // namespace test
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} // namespace crashpad
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