1 // Copyright 2020 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 "chromeos/components/phonehub/mutable_phone_model.h"
6
7 #include "base/strings/utf_string_conversions.h"
8 #include "chromeos/components/phonehub/phone_model_test_util.h"
9 #include "testing/gtest/include/gtest/gtest.h"
10
11 namespace chromeos {
12 namespace phonehub {
13 namespace {
14
15 class FakeObserver : public PhoneModel::Observer {
16 public:
17 FakeObserver() = default;
18 ~FakeObserver() override = default;
19
num_calls() const20 size_t num_calls() const { return num_calls_; }
21
22 // PhoneModel::Observer:
OnModelChanged()23 void OnModelChanged() override { ++num_calls_; }
24
25 private:
26 size_t num_calls_ = 0;
27 };
28
29 } // namespace
30
31 class MutablePhoneModelTest : public testing::Test {
32 protected:
33 MutablePhoneModelTest() = default;
34 MutablePhoneModelTest(const MutablePhoneModelTest&) = delete;
35 MutablePhoneModelTest& operator=(const MutablePhoneModelTest&) = delete;
36 ~MutablePhoneModelTest() override = default;
37
38 // testing::Test:
SetUp()39 void SetUp() override { model_.AddObserver(&fake_observer_); }
40
TearDown()41 void TearDown() override { model_.RemoveObserver(&fake_observer_); }
42
GetNumObserverCalls() const43 size_t GetNumObserverCalls() const { return fake_observer_.num_calls(); }
44
45 protected:
46 MutablePhoneModel model_;
47
48 private:
49 FakeObserver fake_observer_;
50 };
51
TEST_F(MutablePhoneModelTest,PhoneName)52 TEST_F(MutablePhoneModelTest, PhoneName) {
53 const base::string16 fake_phone_name = base::UTF8ToUTF16("Phone name");
54
55 // Set the phone name to be null (the default value); observers should
56 // not be notified, since this is not a change.
57 model_.SetPhoneName(/*phone_name=*/base::nullopt);
58 EXPECT_FALSE(model_.phone_name().has_value());
59 EXPECT_EQ(0u, GetNumObserverCalls());
60
61 // Set the phone name; observers should be notified.
62 model_.SetPhoneName(fake_phone_name);
63 EXPECT_EQ(fake_phone_name, model_.phone_name());
64 EXPECT_EQ(1u, GetNumObserverCalls());
65
66 // Set the same phone name; observers should not be notified.
67 model_.SetPhoneName(fake_phone_name);
68 EXPECT_EQ(fake_phone_name, model_.phone_name());
69 EXPECT_EQ(1u, GetNumObserverCalls());
70
71 // Set the phone name back to null; observers should be notified.
72 model_.SetPhoneName(/*phone_name=*/base::nullopt);
73 EXPECT_FALSE(model_.phone_name().has_value());
74 EXPECT_EQ(2u, GetNumObserverCalls());
75 }
76
TEST_F(MutablePhoneModelTest,PhoneStatusModel)77 TEST_F(MutablePhoneModelTest, PhoneStatusModel) {
78 // Set the PhoneStatusModel to be null (the default value); observers should
79 // not be notified, since this is not a change.
80 model_.SetPhoneStatusModel(/*phone_status_model=*/base::nullopt);
81 EXPECT_FALSE(model_.phone_status_model().has_value());
82 EXPECT_EQ(0u, GetNumObserverCalls());
83
84 // Set the PhoneStatusModel; observers should be notified.
85 model_.SetPhoneStatusModel(CreateFakePhoneStatusModel());
86 EXPECT_EQ(CreateFakePhoneStatusModel(), model_.phone_status_model());
87 EXPECT_EQ(1u, GetNumObserverCalls());
88
89 // Set the same PhoneStatusModel; observers should not be notified.
90 model_.SetPhoneStatusModel(CreateFakePhoneStatusModel());
91 EXPECT_EQ(CreateFakePhoneStatusModel(), model_.phone_status_model());
92 EXPECT_EQ(1u, GetNumObserverCalls());
93
94 // Set the PhoneStatusModel back to null; observers should be notified.
95 model_.SetPhoneStatusModel(/*phone_status_model=*/base::nullopt);
96 EXPECT_FALSE(model_.phone_status_model().has_value());
97 EXPECT_EQ(2u, GetNumObserverCalls());
98 }
99
TEST_F(MutablePhoneModelTest,BrowserTabsModel)100 TEST_F(MutablePhoneModelTest, BrowserTabsModel) {
101 // Set the BrowserTabsModel to be null (the default value); observers should
102 // not be notified, since this is not a change.
103 model_.SetBrowserTabsModel(/*browser_tabs_model=*/base::nullopt);
104 EXPECT_FALSE(model_.browser_tabs_model().has_value());
105 EXPECT_EQ(0u, GetNumObserverCalls());
106
107 // Set the BrowserTabsModel; observers should be notified.
108 model_.SetBrowserTabsModel(CreateFakeBrowserTabsModel());
109 EXPECT_EQ(CreateFakeBrowserTabsModel(), model_.browser_tabs_model());
110 EXPECT_EQ(1u, GetNumObserverCalls());
111
112 // Set the same BrowserTabsModel; observers should not be notified.
113 model_.SetBrowserTabsModel(CreateFakeBrowserTabsModel());
114 EXPECT_EQ(CreateFakeBrowserTabsModel(), model_.browser_tabs_model());
115 EXPECT_EQ(1u, GetNumObserverCalls());
116
117 // Set the BrowserTabsModel back to null; observers should be notified.
118 model_.SetBrowserTabsModel(/*browser_tabs_model=*/base::nullopt);
119 EXPECT_FALSE(model_.browser_tabs_model().has_value());
120 EXPECT_EQ(2u, GetNumObserverCalls());
121 }
122
123 } // namespace phonehub
124 } // namespace chromeos
125