content/browser/file_descriptor_info_impl_unittest.cc

   1 // Copyright (c) 2012 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 "content/browser/file_descriptor_info_impl.h"
   6
   7 #include <fcntl.h>
   8 #include <unistd.h>
   9
  10 #include "base/basictypes.h"
  11 #include "base/posix/eintr_wrapper.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 namespace {
  15
  16 // Get a safe file descriptor for test purposes.
  17 // TODO(morrita) Merge with things in file_descriptor_set_posix_unittest.cc
  18 int GetSafeFd() {
  19   return open("/dev/null", O_RDONLY);
  20 }
  21
  22 // Returns true if fd was already closed.  Closes fd if not closed.
  23 // TODO(morrita) Merge with things in file_descriptor_set_posix_unittest.cc
  24 bool VerifyClosed(int fd) {
  25   const int duped = dup(fd);
  26   if (duped != -1) {
  27     EXPECT_NE(IGNORE_EINTR(close(duped)), -1);
  28     EXPECT_NE(IGNORE_EINTR(close(fd)), -1);
  29     return false;
  30   }
  31   return true;
  32 }
  33
  34 }  // namespace
  35
  36 namespace content {
  37
  38 typedef testing::Test FileDescriptorInfoTest;
  39
  40 TEST_F(FileDescriptorInfoTest, Transfer) {
  41   int testingId = 42;
  42   scoped_ptr<FileDescriptorInfo> target(FileDescriptorInfoImpl::Create());
  43   base::ScopedFD fd(GetSafeFd());
  44
  45   int raw_fd = fd.get();
  46   target->Transfer(testingId, fd.Pass());
  47   ASSERT_EQ(1U, target->GetMappingSize());
  48   ASSERT_EQ(target->GetFDAt(0), raw_fd);
  49   ASSERT_EQ(target->GetIDAt(0), testingId);
  50
  51   target.reset();
  52
  53   ASSERT_TRUE(VerifyClosed(raw_fd));
  54 }
  55
  56 TEST_F(FileDescriptorInfoTest, Share) {
  57   int testingId = 42;
  58   scoped_ptr<FileDescriptorInfo> target(FileDescriptorInfoImpl::Create());
  59   base::ScopedFD fd(GetSafeFd());
  60
  61   int raw_fd = fd.get();
  62   target->Share(testingId, fd.get());
  63   ASSERT_EQ(1U, target->GetMappingSize());
  64   ASSERT_EQ(target->GetFDAt(0), raw_fd);
  65   ASSERT_EQ(target->GetIDAt(0), testingId);
  66
  67   target.reset();
  68
  69   ASSERT_TRUE(!VerifyClosed(fd.release()));
  70 }
  71
  72 TEST_F(FileDescriptorInfoTest, GetMappingWithIDAdjustment) {
  73   int testingId1 = 42;
  74   int testingId2 = 43;
  75   scoped_ptr<FileDescriptorInfo> target(FileDescriptorInfoImpl::Create());
  76
  77   target->Transfer(testingId1, base::ScopedFD(GetSafeFd()));
  78   target->Transfer(testingId2, base::ScopedFD(GetSafeFd()));
  79
  80   base::FileHandleMappingVector mapping =
  81       target->GetMappingWithIDAdjustment(100);
  82   ASSERT_EQ(mapping[0].second, 142);
  83   ASSERT_EQ(mapping[1].second, 143);
  84 }
  85
  86 }  // namespace content