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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chromeos/ash/components/phonehub/mutable_phone_model.h"
#include "base/strings/utf_string_conversions.h"
#include "chromeos/ash/components/phonehub/phone_model_test_util.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ash::phonehub {
namespace {
class FakeObserver : public PhoneModel::Observer {
public:
FakeObserver() = default;
~FakeObserver() override = default;
size_t num_calls() const { return num_calls_; }
// PhoneModel::Observer:
void OnModelChanged() override { ++num_calls_; }
private:
size_t num_calls_ = 0;
};
} // namespace
class MutablePhoneModelTest : public testing::Test {
protected:
MutablePhoneModelTest() = default;
MutablePhoneModelTest(const MutablePhoneModelTest&) = delete;
MutablePhoneModelTest& operator=(const MutablePhoneModelTest&) = delete;
~MutablePhoneModelTest() override = default;
// testing::Test:
void SetUp() override { model_.AddObserver(&fake_observer_); }
void TearDown() override { model_.RemoveObserver(&fake_observer_); }
size_t GetNumObserverCalls() const { return fake_observer_.num_calls(); }
protected:
MutablePhoneModel model_;
private:
FakeObserver fake_observer_;
};
TEST_F(MutablePhoneModelTest, PhoneName) {
const std::u16string fake_phone_name = u"Phone name";
// Set the phone name to be null (the default value); observers should
// not be notified, since this is not a change.
model_.SetPhoneName(/*phone_name=*/std::nullopt);
EXPECT_FALSE(model_.phone_name().has_value());
EXPECT_EQ(0u, GetNumObserverCalls());
// Set the phone name; observers should be notified.
model_.SetPhoneName(fake_phone_name);
EXPECT_EQ(fake_phone_name, model_.phone_name());
EXPECT_EQ(1u, GetNumObserverCalls());
// Set the same phone name; observers should not be notified.
model_.SetPhoneName(fake_phone_name);
EXPECT_EQ(fake_phone_name, model_.phone_name());
EXPECT_EQ(1u, GetNumObserverCalls());
// Set the phone name back to null; observers should be notified.
model_.SetPhoneName(/*phone_name=*/std::nullopt);
EXPECT_FALSE(model_.phone_name().has_value());
EXPECT_EQ(2u, GetNumObserverCalls());
}
TEST_F(MutablePhoneModelTest, PhoneStatusModel) {
// Set the PhoneStatusModel to be null (the default value); observers should
// not be notified, since this is not a change.
model_.SetPhoneStatusModel(/*phone_status_model=*/std::nullopt);
EXPECT_FALSE(model_.phone_status_model().has_value());
EXPECT_EQ(0u, GetNumObserverCalls());
// Set the PhoneStatusModel; observers should be notified.
model_.SetPhoneStatusModel(CreateFakePhoneStatusModel());
EXPECT_EQ(CreateFakePhoneStatusModel(), model_.phone_status_model());
EXPECT_EQ(1u, GetNumObserverCalls());
// Set the same PhoneStatusModel; observers should not be notified.
model_.SetPhoneStatusModel(CreateFakePhoneStatusModel());
EXPECT_EQ(CreateFakePhoneStatusModel(), model_.phone_status_model());
EXPECT_EQ(1u, GetNumObserverCalls());
// Set the PhoneStatusModel back to null; observers should be notified.
model_.SetPhoneStatusModel(/*phone_status_model=*/std::nullopt);
EXPECT_FALSE(model_.phone_status_model().has_value());
EXPECT_EQ(2u, GetNumObserverCalls());
}
TEST_F(MutablePhoneModelTest, BrowserTabsModel) {
// Set the BrowserTabsModel to be null (the default value); observers should
// not be notified, since this is not a change.
model_.SetBrowserTabsModel(/*browser_tabs_model=*/std::nullopt);
EXPECT_FALSE(model_.browser_tabs_model().has_value());
EXPECT_EQ(0u, GetNumObserverCalls());
// Set the BrowserTabsModel; observers should be notified.
model_.SetBrowserTabsModel(CreateFakeBrowserTabsModel());
EXPECT_EQ(CreateFakeBrowserTabsModel(), model_.browser_tabs_model());
EXPECT_EQ(1u, GetNumObserverCalls());
// Set the same BrowserTabsModel; observers should not be notified.
model_.SetBrowserTabsModel(CreateFakeBrowserTabsModel());
EXPECT_EQ(CreateFakeBrowserTabsModel(), model_.browser_tabs_model());
EXPECT_EQ(1u, GetNumObserverCalls());
// Set the BrowserTabsModel back to null; observers should be notified.
model_.SetBrowserTabsModel(/*browser_tabs_model=*/std::nullopt);
EXPECT_FALSE(model_.browser_tabs_model().has_value());
EXPECT_EQ(2u, GetNumObserverCalls());
}
} // namespace ash::phonehub
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