Refactor ChooserBubbleUiViewDelegate

chrome/browser/ui/views/chooser_content_view_unittest.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/ui/views/chooser_content_view.h"
+
+#include "base/macros.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/chooser_controller/mock_chooser_controller.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/views/controls/styled_label.h"
+#include "ui/views/controls/styled_label_listener.h"
+#include "ui/views/controls/table/table_view.h"
+#include "ui/views/controls/table/table_view_observer.h"
+
+namespace {
+
+class MockTableViewObserver : public views::TableViewObserver {
+ public:
+  // views::TableViewObserver:
+  MOCK_METHOD0(OnSelectionChanged, void());
+};
+
+class MockStyledLabelListener : public views::StyledLabelListener {
+ public:
+  // views::StyledLabelListener:
+  MOCK_METHOD3(StyledLabelLinkClicked,
+               void(views::StyledLabel* label,
+                    const gfx::Range& range,
+                    int event_flags));
+};
+
+}  // namespace
+
+class ChooserContentViewTest : public testing::Test {
+ public:
+  ChooserContentViewTest() {}
+
+  // testing::Test:
+  void SetUp() override {
+    mock_chooser_controller_.reset(new MockChooserController(nullptr));
+    mock_table_view_observer_.reset(new MockTableViewObserver());
+    chooser_content_view_.reset(new ChooserContentView(
+        mock_table_view_observer_.get(), mock_chooser_controller_.get()));
+    table_view_ = chooser_content_view_->table_view_for_test();
+    ASSERT_TRUE(table_view_);
+    table_model_ = table_view_->model();
+    ASSERT_TRUE(table_model_);
+    mock_styled_label_listener_.reset(new MockStyledLabelListener());
+    styled_label_.reset(chooser_content_view_->CreateFootnoteView(
+        mock_styled_label_listener_.get()));
+    ASSERT_TRUE(styled_label_);
+  }
+
+ protected:
+  std::unique_ptr<MockChooserController> mock_chooser_controller_;
+  std::unique_ptr<MockTableViewObserver> mock_table_view_observer_;
+  std::unique_ptr<ChooserContentView> chooser_content_view_;
+  views::TableView* table_view_;
+  ui::TableModel* table_model_;
+  std::unique_ptr<MockStyledLabelListener> mock_styled_label_listener_;
+  std::unique_ptr<views::StyledLabel> styled_label_;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ChooserContentViewTest);
+};
+
+TEST_F(ChooserContentViewTest, InitialState) {
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(0);
+
+  // Since "No devices found." needs to be displayed on the |table_view_|,
+  // the number of rows is 1.
+  EXPECT_EQ(1, table_view_->RowCount());
+  EXPECT_EQ(
+      l10n_util::GetStringUTF16(IDS_CHOOSER_BUBBLE_NO_DEVICES_FOUND_PROMPT),
+      table_model_->GetText(0, 0));
+  // |table_view_| should be disabled since there is no option shown.
+  EXPECT_FALSE(table_view_->enabled());
+  // No option selected.
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest, AddOption) {
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(0);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+  EXPECT_EQ(1, table_view_->RowCount());
+  EXPECT_EQ(base::ASCIIToUTF16("a"), table_model_->GetText(0, 0));
+  // |table_view_| should be enabled since there is an option.
+  EXPECT_TRUE(table_view_->enabled());
+  // No option selected.
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("b"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  EXPECT_EQ(base::ASCIIToUTF16("b"), table_model_->GetText(1, 0));
+  EXPECT_TRUE(table_view_->enabled());
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("c"));
+  EXPECT_EQ(3, table_view_->RowCount());
+  EXPECT_EQ(base::ASCIIToUTF16("c"), table_model_->GetText(2, 0));
+  EXPECT_TRUE(table_view_->enabled());
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest, RemoveOption) {
+  // Called from TableView::OnItemsRemoved().
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(3);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("b"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("c"));
+
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("b"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  EXPECT_EQ(base::ASCIIToUTF16("a"), table_model_->GetText(0, 0));
+  EXPECT_EQ(base::ASCIIToUTF16("c"), table_model_->GetText(1, 0));
+  EXPECT_TRUE(table_view_->enabled());
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+
+  // Remove a non-existent option, the number of rows should not change.
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("non-existent"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  EXPECT_EQ(base::ASCIIToUTF16("a"), table_model_->GetText(0, 0));
+  EXPECT_EQ(base::ASCIIToUTF16("c"), table_model_->GetText(1, 0));
+  EXPECT_TRUE(table_view_->enabled());
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("c"));
+  EXPECT_EQ(1, table_view_->RowCount());
+  EXPECT_EQ(base::ASCIIToUTF16("a"), table_model_->GetText(0, 0));
+  EXPECT_TRUE(table_view_->enabled());
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("a"));
+  // There is no option shown now. But since "No devices found."
+  // needs to be displayed on the |table_view_|, the number of rows is 1.
+  EXPECT_EQ(1, table_view_->RowCount());
+  EXPECT_EQ(
+      l10n_util::GetStringUTF16(IDS_CHOOSER_BUBBLE_NO_DEVICES_FOUND_PROMPT),
+      table_model_->GetText(0, 0));
+  // |table_view_| should be disabled since all options are removed.
+  EXPECT_FALSE(table_view_->enabled());
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest, AddAndRemoveOption) {
+  // Called from TableView::OnItemsRemoved().
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(3);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+  EXPECT_EQ(1, table_view_->RowCount());
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("b"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("b"));
+  EXPECT_EQ(1, table_view_->RowCount());
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("c"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("d"));
+  EXPECT_EQ(3, table_view_->RowCount());
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("d"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("c"));
+  EXPECT_EQ(1, table_view_->RowCount());
+}
+
+TEST_F(ChooserContentViewTest, SelectAndDeselectAnOption) {
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(4);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("b"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("c"));
+
+  // Select option 0.
+  table_view_->Select(0);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(0, table_view_->FirstSelectedRow());
+
+  // Unselect option 0.
+  table_view_->Select(-1);
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+
+  // Select option 1.
+  table_view_->Select(1);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(1, table_view_->FirstSelectedRow());
+
+  // Unselect option 1.
+  table_view_->Select(-1);
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest, SelectAnOptionAndThenSelectAnotherOption) {
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(3);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("b"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("c"));
+
+  // Select option 0.
+  table_view_->Select(0);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(0, table_view_->FirstSelectedRow());
+
+  // Select option 1.
+  table_view_->Select(1);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(1, table_view_->FirstSelectedRow());
+
+  // Select option 2.
+  table_view_->Select(2);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(2, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest, SelectAnOptionAndRemoveAnotherOption) {
+  // Called one time from TableView::Select() and two times from
+  // TableView::OnItemsRemoved().
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(3);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("b"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("c"));
+
+  // Select option 1.
+  table_view_->Select(1);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(1, table_view_->FirstSelectedRow());
+
+  // Remove option 0, the list becomes: b c.
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("a"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  // Since option 0 is removed, the original selected option 1 becomes
+  // the first option in the list.
+  EXPECT_EQ(0, table_view_->FirstSelectedRow());
+
+  // Remove option 1.
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("c"));
+  EXPECT_EQ(1, table_view_->RowCount());
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(0, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest, SelectAnOptionAndRemoveTheSelectedOption) {
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(2);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("b"));
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("c"));
+
+  // Select option 1.
+  table_view_->Select(1);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(1, table_view_->FirstSelectedRow());
+
+  // Remove option 1.
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("b"));
+  EXPECT_EQ(2, table_view_->RowCount());
+  // No option selected.
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest,
+       AddAnOptionAndSelectItAndRemoveTheSelectedOption) {
+  EXPECT_CALL(*mock_table_view_observer_, OnSelectionChanged()).Times(2);
+
+  mock_chooser_controller_->OptionAdded(base::ASCIIToUTF16("a"));
+
+  // Select option 0.
+  table_view_->Select(0);
+  EXPECT_EQ(1, table_view_->SelectedRowCount());
+  EXPECT_EQ(0, table_view_->FirstSelectedRow());
+
+  // Remove option 0.
+  mock_chooser_controller_->OptionRemoved(base::ASCIIToUTF16("a"));
+  // There is no option shown now. But since "No devices found."
+  // needs to be displayed on the |table_view_|, the number of rows is 1.
+  EXPECT_EQ(1, table_view_->RowCount());
+  EXPECT_EQ(
+      l10n_util::GetStringUTF16(IDS_CHOOSER_BUBBLE_NO_DEVICES_FOUND_PROMPT),
+      table_model_->GetText(0, 0));
+  // |table_view_| should be disabled since all options are removed.
+  EXPECT_FALSE(table_view_->enabled());
+  // No option selected.
+  EXPECT_EQ(0, table_view_->SelectedRowCount());
+  EXPECT_EQ(-1, table_view_->FirstSelectedRow());
+}
+
+TEST_F(ChooserContentViewTest, ClickStyledLabelLink) {
+  EXPECT_CALL(*mock_styled_label_listener_,
+              StyledLabelLinkClicked(styled_label_.get(), testing::_, 0))
+      .Times(1);
+  styled_label_->LinkClicked(nullptr, 0);
+}