chrome/common/extensions/feature_switch_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 "extensions/common/feature_switch.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/memory/scoped_ptr.h"
   9 #include "testing/gtest/include/gtest/gtest.h"
  10
  11 using extensions::FeatureSwitch;
  12
  13 namespace {
  14
  15 const char kSwitchName[] = "test-switch";
  16
  17 template<FeatureSwitch::DefaultValue T>
  18 class FeatureSwitchTest : public testing::Test {
  19  public:
  20   FeatureSwitchTest()
  21       : command_line_(base::CommandLine::NO_PROGRAM),
  22         feature_(&command_line_, kSwitchName, T) {}
  23  protected:
  24   base::CommandLine command_line_;
  25   FeatureSwitch feature_;
  26 };
  27
  28 typedef FeatureSwitchTest<FeatureSwitch::DEFAULT_DISABLED>
  29     FeatureSwitchDisabledTest;
  30 typedef FeatureSwitchTest<FeatureSwitch::DEFAULT_ENABLED>
  31     FeatureSwitchEnabledTest;
  32
  33 }  // namespace
  34
  35 TEST_F(FeatureSwitchDisabledTest, NoSwitchValue) {
  36   EXPECT_FALSE(feature_.IsEnabled());
  37 }
  38
  39 TEST_F(FeatureSwitchDisabledTest, FalseSwitchValue) {
  40   command_line_.AppendSwitchASCII(kSwitchName, "0");
  41   EXPECT_FALSE(feature_.IsEnabled());
  42 }
  43
  44 TEST_F(FeatureSwitchDisabledTest, GibberishSwitchValue) {
  45   command_line_.AppendSwitchASCII(kSwitchName, "monkey");
  46   EXPECT_FALSE(feature_.IsEnabled());
  47 }
  48
  49 TEST_F(FeatureSwitchDisabledTest, Override) {
  50   {
  51     FeatureSwitch::ScopedOverride override(&feature_, false);
  52     EXPECT_FALSE(feature_.IsEnabled());
  53   }
  54   EXPECT_FALSE(feature_.IsEnabled());
  55
  56   {
  57     FeatureSwitch::ScopedOverride override(&feature_, true);
  58     EXPECT_TRUE(feature_.IsEnabled());
  59   }
  60   EXPECT_FALSE(feature_.IsEnabled());
  61 }
  62
  63 TEST_F(FeatureSwitchDisabledTest, TrueSwitchValue) {
  64   command_line_.AppendSwitchASCII(kSwitchName, "1");
  65   EXPECT_TRUE(feature_.IsEnabled());
  66
  67   {
  68     FeatureSwitch::ScopedOverride override(&feature_, false);
  69     EXPECT_FALSE(feature_.IsEnabled());
  70   }
  71   EXPECT_TRUE(feature_.IsEnabled());
  72
  73   {
  74     FeatureSwitch::ScopedOverride override(&feature_, true);
  75     EXPECT_TRUE(feature_.IsEnabled());
  76   }
  77   EXPECT_TRUE(feature_.IsEnabled());
  78 }
  79
  80 TEST_F(FeatureSwitchDisabledTest, TrimSwitchValue) {
  81   command_line_.AppendSwitchASCII(kSwitchName, " \t  1\n  ");
  82   EXPECT_TRUE(feature_.IsEnabled());
  83 }
  84
  85 TEST_F(FeatureSwitchEnabledTest, NoSwitchValue) {
  86   EXPECT_TRUE(feature_.IsEnabled());
  87 }
  88
  89 TEST_F(FeatureSwitchEnabledTest, TrueSwitchValue) {
  90   command_line_.AppendSwitchASCII(kSwitchName, "1");
  91   EXPECT_TRUE(feature_.IsEnabled());
  92 }
  93
  94 TEST_F(FeatureSwitchEnabledTest, GibberishSwitchValue) {
  95   command_line_.AppendSwitchASCII(kSwitchName, "monkey");
  96   EXPECT_TRUE(feature_.IsEnabled());
  97 }
  98
  99 TEST_F(FeatureSwitchEnabledTest, Override) {
 100   {
 101     FeatureSwitch::ScopedOverride override(&feature_, true);
 102     EXPECT_TRUE(feature_.IsEnabled());
 103   }
 104   EXPECT_TRUE(feature_.IsEnabled());
 105
 106   {
 107     FeatureSwitch::ScopedOverride override(&feature_, false);
 108     EXPECT_FALSE(feature_.IsEnabled());
 109   }
 110   EXPECT_TRUE(feature_.IsEnabled());
 111 }
 112
 113 TEST_F(FeatureSwitchEnabledTest, FalseSwitchValue) {
 114   command_line_.AppendSwitchASCII(kSwitchName, "0");
 115   EXPECT_FALSE(feature_.IsEnabled());
 116
 117   {
 118     FeatureSwitch::ScopedOverride override(&feature_, true);
 119     EXPECT_TRUE(feature_.IsEnabled());
 120   }
 121   EXPECT_FALSE(feature_.IsEnabled());
 122
 123   {
 124     FeatureSwitch::ScopedOverride override(&feature_, false);
 125     EXPECT_FALSE(feature_.IsEnabled());
 126   }
 127   EXPECT_FALSE(feature_.IsEnabled());
 128 }
 129
 130 TEST_F(FeatureSwitchEnabledTest, TrimSwitchValue) {
 131   command_line_.AppendSwitchASCII(kSwitchName, "\t\t 0 \n");
 132   EXPECT_FALSE(feature_.IsEnabled());
 133 }