base/callback_helpers_unittest.cc

   1 // Copyright 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 "base/callback_helpers.h"
   6
   7 #include "base/bind.h"
   8 #include "base/callback.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10
  11 namespace {
  12
  13 void Increment(int* value) {
  14   (*value)++;
  15 }
  16
  17 TEST(BindHelpersTest, TestScopedClosureRunnerExitScope) {
  18   int run_count = 0;
  19   {
  20     base::ScopedClosureRunner runner(base::Bind(&Increment, &run_count));
  21     EXPECT_EQ(0, run_count);
  22   }
  23   EXPECT_EQ(1, run_count);
  24 }
  25
  26 TEST(BindHelpersTest, TestScopedClosureRunnerRelease) {
  27   int run_count = 0;
  28   base::Closure c;
  29   {
  30     base::ScopedClosureRunner runner(base::Bind(&Increment, &run_count));
  31     c = runner.Release();
  32     EXPECT_EQ(0, run_count);
  33   }
  34   EXPECT_EQ(0, run_count);
  35   c.Run();
  36   EXPECT_EQ(1, run_count);
  37 }
  38
  39 TEST(BindHelpersTest, TestScopedClosureRunnerReset) {
  40   int run_count_1 = 0;
  41   int run_count_2 = 0;
  42   {
  43     base::ScopedClosureRunner runner;
  44     runner.Reset(base::Bind(&Increment, &run_count_1));
  45     runner.Reset(base::Bind(&Increment, &run_count_2));
  46     EXPECT_EQ(1, run_count_1);
  47     EXPECT_EQ(0, run_count_2);
  48   }
  49   EXPECT_EQ(1, run_count_2);
  50
  51   int run_count_3 = 0;
  52   {
  53     base::ScopedClosureRunner runner(base::Bind(&Increment, &run_count_3));
  54     EXPECT_EQ(0, run_count_3);
  55     runner.Reset();
  56     EXPECT_EQ(1, run_count_3);
  57   }
  58   EXPECT_EQ(1, run_count_3);
  59 }
  60
  61 }  // namespace