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- // Copyright (c) 2012 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #include "butil/files/dir_reader_posix.h"
- #include <fcntl.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #include "butil/logging.h"
- #include <gtest/gtest.h>
- #if defined(OS_ANDROID)
- #include "butil/os_compat_android.h"
- #endif
- namespace butil {
- TEST(DirReaderPosixUnittest, Read) {
- static const unsigned kNumFiles = 100;
- if (DirReaderPosix::IsFallback())
- return;
- char kDirTemplate[] = "/tmp/org.chromium.dir-reader-posix-XXXXXX";
- const char* dir = mkdtemp(kDirTemplate);
- ASSERT_TRUE(dir);
- const int prev_wd = open(".", O_RDONLY | O_DIRECTORY);
- DCHECK_GE(prev_wd, 0);
- PCHECK(chdir(dir) == 0);
- for (unsigned i = 0; i < kNumFiles; i++) {
- char buf[16];
- snprintf(buf, sizeof(buf), "%d", i);
- const int fd = open(buf, O_CREAT | O_RDONLY | O_EXCL, 0600);
- PCHECK(fd >= 0);
- PCHECK(close(fd) == 0);
- }
- std::set<unsigned> seen;
- DirReaderPosix reader(dir);
- EXPECT_TRUE(reader.IsValid());
- if (!reader.IsValid())
- return;
- bool seen_dot = false, seen_dotdot = false;
- for (; reader.Next(); ) {
- if (strcmp(reader.name(), ".") == 0) {
- seen_dot = true;
- continue;
- }
- if (strcmp(reader.name(), "..") == 0) {
- seen_dotdot = true;
- continue;
- }
- SCOPED_TRACE(testing::Message() << "reader.name(): " << reader.name());
- char *endptr;
- const unsigned long value = strtoul(reader.name(), &endptr, 10);
- EXPECT_FALSE(*endptr);
- EXPECT_LT(value, kNumFiles);
- EXPECT_EQ(0u, seen.count(value));
- seen.insert(value);
- }
- for (unsigned i = 0; i < kNumFiles; i++) {
- char buf[16];
- snprintf(buf, sizeof(buf), "%d", i);
- PCHECK(unlink(buf) == 0);
- }
- PCHECK(rmdir(dir) == 0);
- PCHECK(fchdir(prev_wd) == 0);
- PCHECK(close(prev_wd) == 0);
- EXPECT_TRUE(seen_dot);
- EXPECT_TRUE(seen_dotdot);
- EXPECT_EQ(kNumFiles, seen.size());
- }
- } // namespace butil
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