base/scoped_clear_errno_unittest.cc

   1 // Copyright (c) 2013 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 <errno.h>
   6
   7 #include "base/scoped_clear_errno.h"
   8 #include "testing/gtest/include/gtest/gtest.h"
   9
  10 namespace base {
  11
  12 TEST(ScopedClearErrno, TestNoError) {
  13   errno = 1;
  14   {
  15     ScopedClearErrno clear_error;
  16     EXPECT_EQ(0, errno);
  17   }
  18   EXPECT_EQ(1, errno);
  19 }
  20
  21 TEST(ScopedClearErrno, TestError) {
  22   errno = 1;
  23   {
  24     ScopedClearErrno clear_error;
  25     errno = 2;
  26   }
  27   EXPECT_EQ(2, errno);
  28 }
  29
  30 }  // namespace base