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      1 /*
      2  * libjingle
      3  * Copyright 2004--2011, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #include "talk/base/fileutils.h"
     29 #include "talk/base/gunit.h"
     30 #include "talk/base/pathutils.h"
     31 #include "talk/base/stream.h"
     32 
     33 namespace talk_base {
     34 
     35 // Make sure we can get a temp folder for the later tests.
     36 TEST(FilesystemTest, GetTemporaryFolder) {
     37   Pathname path;
     38   EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
     39 }
     40 
     41 // Test creating a temp file, reading it back in, and deleting it.
     42 TEST(FilesystemTest, TestOpenFile) {
     43   Pathname path;
     44   EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
     45   path.SetPathname(Filesystem::TempFilename(path, "ut"));
     46 
     47   FileStream* fs;
     48   char buf[256];
     49   size_t bytes;
     50 
     51   fs = Filesystem::OpenFile(path, "wb");
     52   ASSERT_TRUE(fs != NULL);
     53   EXPECT_EQ(SR_SUCCESS, fs->Write("test", 4, &bytes, NULL));
     54   EXPECT_EQ(4U, bytes);
     55   delete fs;
     56 
     57   EXPECT_TRUE(Filesystem::IsFile(path));
     58 
     59   fs = Filesystem::OpenFile(path, "rb");
     60   ASSERT_TRUE(fs != NULL);
     61   EXPECT_EQ(SR_SUCCESS, fs->Read(buf, sizeof(buf), &bytes, NULL));
     62   EXPECT_EQ(4U, bytes);
     63   delete fs;
     64 
     65   EXPECT_TRUE(Filesystem::DeleteFile(path));
     66   EXPECT_FALSE(Filesystem::IsFile(path));
     67 }
     68 
     69 // Test opening a non-existent file.
     70 TEST(FilesystemTest, TestOpenBadFile) {
     71   Pathname path;
     72   EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
     73   path.SetFilename("not an actual file");
     74 
     75   EXPECT_FALSE(Filesystem::IsFile(path));
     76 
     77   FileStream* fs = Filesystem::OpenFile(path, "rb");
     78   EXPECT_FALSE(fs != NULL);
     79 }
     80 
     81 // Test that CreatePrivateFile fails for existing files and succeeds for
     82 // non-existent ones.
     83 TEST(FilesystemTest, TestCreatePrivateFile) {
     84   Pathname path;
     85   EXPECT_TRUE(Filesystem::GetTemporaryFolder(path, true, NULL));
     86   path.SetFilename("private_file_test");
     87 
     88   // First call should succeed because the file doesn't exist yet.
     89   EXPECT_TRUE(Filesystem::CreatePrivateFile(path));
     90   // Next call should fail, because now it exists.
     91   EXPECT_FALSE(Filesystem::CreatePrivateFile(path));
     92 
     93   // Verify that we have permission to open the file for reading and writing.
     94   scoped_ptr<FileStream> fs(Filesystem::OpenFile(path, "wb"));
     95   EXPECT_TRUE(fs.get() != NULL);
     96   // Have to close the file on Windows before it will let us delete it.
     97   fs.reset();
     98 
     99   // Verify that we have permission to delete the file.
    100   EXPECT_TRUE(Filesystem::DeleteFile(path));
    101 }
    102 
    103 // Test checking for free disk space.
    104 TEST(FilesystemTest, TestGetDiskFreeSpace) {
    105   // Note that we should avoid picking any file/folder which could be located
    106   // at the remotely mounted drive/device.
    107   Pathname path;
    108   ASSERT_TRUE(Filesystem::GetAppDataFolder(&path, true));
    109 
    110   int64 free1 = 0;
    111   EXPECT_TRUE(Filesystem::IsFolder(path));
    112   EXPECT_FALSE(Filesystem::IsFile(path));
    113   EXPECT_TRUE(Filesystem::GetDiskFreeSpace(path, &free1));
    114   EXPECT_GT(free1, 0);
    115 
    116   int64 free2 = 0;
    117   path.AppendFolder("this_folder_doesnt_exist");
    118   EXPECT_FALSE(Filesystem::IsFolder(path));
    119   EXPECT_TRUE(Filesystem::IsAbsent(path));
    120   EXPECT_TRUE(Filesystem::GetDiskFreeSpace(path, &free2));
    121   // These should be the same disk, and disk free space should not have changed
    122   // by more than 1% between the two calls.
    123   EXPECT_LT(static_cast<int64>(free1 * .9), free2);
    124   EXPECT_LT(free2, static_cast<int64>(free1 * 1.1));
    125 
    126   int64 free3 = 0;
    127   path.clear();
    128   EXPECT_TRUE(path.empty());
    129   EXPECT_TRUE(Filesystem::GetDiskFreeSpace(path, &free3));
    130   // Current working directory may not be where exe is.
    131   // EXPECT_LT(static_cast<int64>(free1 * .9), free3);
    132   // EXPECT_LT(free3, static_cast<int64>(free1 * 1.1));
    133   EXPECT_GT(free3, 0);
    134 }
    135 
    136 // Tests that GetCurrentDirectory() returns something.
    137 TEST(FilesystemTest, TestGetCurrentDirectory) {
    138   EXPECT_FALSE(Filesystem::GetCurrentDirectory().empty());
    139 }
    140 
    141 // Tests that GetAppPathname returns something.
    142 TEST(FilesystemTest, TestGetAppPathname) {
    143   Pathname path;
    144   EXPECT_TRUE(Filesystem::GetAppPathname(&path));
    145   EXPECT_FALSE(path.empty());
    146 }
    147 
    148 }  // namespace talk_base
    149