1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/dir_reader_posix.h" 6 7 #include <fcntl.h> 8 #include <stdio.h> 9 #include <stdlib.h> 10 #include <string.h> 11 #include <unistd.h> 12 13 #include "base/logging.h" 14 #include "testing/gtest/include/gtest/gtest.h" 15 16 using base::DirReaderPosix; 17 18 namespace { 19 typedef testing::Test DirReaderPosixUnittest; 20 21 TEST(DirReaderPosixUnittest, Read) { 22 static const unsigned kNumFiles = 100; 23 24 if (DirReaderPosix::IsFallback()) 25 return; 26 27 char kDirTemplate[] = "/tmp/org.chromium.dir-reader-posix-XXXXXX"; 28 const char* dir = mkdtemp(kDirTemplate); 29 CHECK(dir); 30 31 const int prev_wd = open(".", O_RDONLY | O_DIRECTORY); 32 CHECK_GE(prev_wd, 0); 33 34 PCHECK(chdir(dir) == 0); 35 36 for (unsigned i = 0; i < kNumFiles; i++) { 37 char buf[16]; 38 snprintf(buf, sizeof(buf), "%d", i); 39 const int fd = open(buf, O_CREAT | O_RDONLY | O_EXCL, 0600); 40 PCHECK(fd >= 0); 41 PCHECK(close(fd) == 0); 42 } 43 44 std::set<unsigned> seen; 45 46 DirReaderPosix reader(dir); 47 EXPECT_TRUE(reader.IsValid()); 48 49 if (!reader.IsValid()) 50 return; 51 52 bool seen_dot = false, seen_dotdot = false; 53 54 for (; reader.Next(); ) { 55 if (strcmp(reader.name(), ".") == 0) { 56 seen_dot = true; 57 continue; 58 } 59 if (strcmp(reader.name(), "..") == 0) { 60 seen_dotdot = true; 61 continue; 62 } 63 64 SCOPED_TRACE(testing::Message() << "reader.name(): " << reader.name()); 65 66 char *endptr; 67 const unsigned long value = strtoul(reader.name(), &endptr, 10); 68 69 EXPECT_FALSE(*endptr); 70 EXPECT_LT(value, kNumFiles); 71 EXPECT_EQ(0u, seen.count(value)); 72 seen.insert(value); 73 } 74 75 for (unsigned i = 0; i < kNumFiles; i++) { 76 char buf[16]; 77 snprintf(buf, sizeof(buf), "%d", i); 78 PCHECK(unlink(buf) == 0); 79 } 80 81 PCHECK(rmdir(dir) == 0); 82 83 PCHECK(fchdir(prev_wd) == 0); 84 PCHECK(close(prev_wd) == 0); 85 86 EXPECT_TRUE(seen_dot); 87 EXPECT_TRUE(seen_dotdot); 88 EXPECT_EQ(kNumFiles, seen.size()); 89 } 90 91 } // anonymous namespace 92
