stub_cros_settings_provider_unittest.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019 
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 "chrome/browser/chromeos/settings/stub_cros_settings_provider.h"
6
7#include <string>
8
9#include "base/bind.h"
10#include "base/memory/scoped_ptr.h"
11#include "base/values.h"
12#include "chrome/browser/chromeos/settings/cros_settings_names.h"
13#include "testing/gtest/include/gtest/gtest.h"
14
15namespace chromeos {
16
17namespace {
18
19void Fail() {
20  // Should never be called.
21  FAIL();
22}
23
24}  // namespace
25
26class StubCrosSettingsProviderTest : public testing::Test {
27 protected:
28  StubCrosSettingsProviderTest()
29      : provider_(new StubCrosSettingsProvider(
30          base::Bind(&StubCrosSettingsProviderTest::FireObservers,
31                     base::Unretained(this)))) {
32  }
33
34  virtual ~StubCrosSettingsProviderTest() {
35  }
36
37  virtual void SetUp() OVERRIDE {
38    // Reset the observer notification count.
39    observer_count_.clear();
40  }
41
42  void AssertPref(const std::string& prefName, const Value* value) {
43    const Value* pref = provider_->Get(prefName);
44    ASSERT_TRUE(pref);
45    ASSERT_TRUE(pref->Equals(value));
46  }
47
48  void ExpectObservers(const std::string& prefName, int count) {
49    EXPECT_EQ(observer_count_[prefName], count);
50  }
51
52  void FireObservers(const std::string& path) {
53    observer_count_[path]++;
54  }
55
56  scoped_ptr<StubCrosSettingsProvider> provider_;
57  std::map<std::string, int> observer_count_;
58};
59
60TEST_F(StubCrosSettingsProviderTest, HandlesSettings) {
61  // HandlesSettings should return false for unknown settings.
62  ASSERT_TRUE(provider_->HandlesSetting(kDeviceOwner));
63  ASSERT_FALSE(provider_->HandlesSetting("no.such.setting"));
64}
65
66TEST_F(StubCrosSettingsProviderTest, Defaults) {
67  // Verify default values.
68  const base::FundamentalValue kTrueValue(true);
69  AssertPref(kAccountsPrefAllowGuest, &kTrueValue);
70  AssertPref(kAccountsPrefAllowNewUser, &kTrueValue);
71  AssertPref(kAccountsPrefShowUserNamesOnSignIn, &kTrueValue);
72}
73
74TEST_F(StubCrosSettingsProviderTest, Set) {
75  // Setting value and reading it afterwards returns the same value.
76  base::StringValue owner_value("me@owner");
77  provider_->Set(kDeviceOwner, owner_value);
78  AssertPref(kDeviceOwner, &owner_value);
79  ExpectObservers(kDeviceOwner, 1);
80}
81
82TEST_F(StubCrosSettingsProviderTest, SetMissing) {
83  // Setting is missing initially but is added by |Set|.
84  base::StringValue pref_value("testing");
85  ASSERT_FALSE(provider_->Get(kReleaseChannel));
86  provider_->Set(kReleaseChannel, pref_value);
87  AssertPref(kReleaseChannel, &pref_value);
88  ExpectObservers(kReleaseChannel, 1);
89}
90
91TEST_F(StubCrosSettingsProviderTest, PrepareTrustedValues) {
92  // Should return immediately without invoking the callback.
93  CrosSettingsProvider::TrustedStatus trusted =
94      provider_->PrepareTrustedValues(base::Bind(&Fail));
95  EXPECT_EQ(CrosSettingsProvider::TRUSTED, trusted);
96}
97
98}  // namespace chromeos
99