ui/file_manager/integration_tests/file_manager/file_list.js - chromium/src - Git at Google

 // Copyright 2019 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.

 'use strict';

 (() => {
   /**
    * Send Tab keys to Files app until #file-list gets a selected item.
    *
    * Raise test failure if #file-list doesn't get anything selected in 20 tabs.
    *
    * NOTE:
    *   1. Sends a maximum of 20 tabs.
    *   2. The focused element after this function might NOT be #file-list, since
    *   updating the selected item which is async can be detected after an extra
    *   Tab has been sent.
    */
   async function tabUntilFileSelected(appId) {
     // Check: the file-list should have nothing selected.
     const selectedRows = await remoteCall.callRemoteTestUtil(
         'deepQueryAllElements', appId, ['#file-list li[selected]']);
     chrome.test.assertEq(0, selectedRows.length);

     // Press the tab until file-list gets focus and select some file.
     for (let i = 0; i < 20; i++) {
       // Send Tab key.
       const result = await sendTestMessage({name: 'dispatchTabKey'});
       chrome.test.assertEq(
           result, 'tabKeyDispatched', 'Tab key dispatch failed');

       // Check if there is a file selected, and return if so.
       const selectedRows = await remoteCall.callRemoteTestUtil(
           'deepQueryAllElements', appId, ['#file-list li[selected]']);
       if (selectedRows.length > 0) {
         return;
       }
     }

     chrome.test.assertTrue(false, 'File list has no selection');
   }

   /**
    * Tests that file list column header have ARIA attributes.
    */
   testcase.fileListAriaAttributes = async () => {
     const appId = await setupAndWaitUntilReady(
         RootPath.DOWNLOADS, [ENTRIES.beautiful], []);

     // Fetch column header.
     const columnHeadersQuery =
         ['#detail-table .table-header [aria-describedby]'];
     const columnHeaders = await remoteCall.callRemoteTestUtil(
         'deepQueryAllElements', appId, [columnHeadersQuery, ['display']]);

     chrome.test.assertTrue(columnHeaders.length > 0);
     for (const header of columnHeaders) {
       // aria-describedby is used to tell users that they can click and which
       // type of sort asc/desc will happen.
       chrome.test.assertTrue('aria-describedby' in header.attributes);
       // role button is used so users know that it's clickable.
       chrome.test.assertEq('button', header.attributes.role);
     }
   };

   /**
    * Tests using tab to focus the file list will select the first item, if
    * nothing is selected.
    */
   testcase.fileListFocusFirstItem = async () => {
     const appId = await setupAndWaitUntilReady(
         RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

     // Send Tab keys to make file selected.
     await tabUntilFileSelected(appId);

     // Check: The first file only is selected in the file entry rows.
     const fileRows = await remoteCall.callRemoteTestUtil(
         'deepQueryAllElements', appId, ['#file-list li']);
     chrome.test.assertEq(5, fileRows.length);
     const selectedRows = fileRows.filter(item => 'selected' in item.attributes);
     chrome.test.assertEq(1, selectedRows.length);
     chrome.test.assertEq(0, fileRows.indexOf(selectedRows[0]));
   };

   /**
    * Tests that after a multiple selection, canceling the selection and using
    * Tab to focus the files list it selects the item that was last focused.
    */
   testcase.fileListSelectLastFocusedItem = async () => {
     const appId = await setupAndWaitUntilReady(
         RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

     // Check: the file-list should have nothing selected.
     let selectedRows = await remoteCall.callRemoteTestUtil(
         'deepQueryAllElements', appId, ['#file-list li[selected]']);
     chrome.test.assertEq(0, selectedRows.length);

     // Move to item 2.
     const downKey = ['#file-list', 'ArrowDown', false, false, false];
     for (let i = 0; i < 2; i++) {
       chrome.test.assertTrue(
           !!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, downKey),
           'ArrowDown failed');
     }

     // Select item 2 with Ctrl+Space.
     const ctrlSpace = ['#file-list', ' ', true, false, false];
     chrome.test.assertTrue(
         !!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, ctrlSpace),
         'Ctrl+Space failed');

     // Move to item 3 and Cltr+Space to add it to multi-selection.
     const ctrlDown = ['#file-list', 'ArrowDown', true, false, false];
     chrome.test.assertTrue(
         !!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, ctrlDown),
         'Ctrl+ArrowDown failed');
     chrome.test.assertTrue(
         !!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, ctrlSpace),
         'Ctrl+Space failed');

     // Check that items 2 and 3 are selected.
     selectedRows = await remoteCall.callRemoteTestUtil(
         'deepQueryAllElements', appId, ['#file-list li[selected]']);
     chrome.test.assertEq(2, selectedRows.length);

     // Cancel the selection.
     const button = ['#cancel-selection-button'];
     await remoteCall.waitAndClickElement(appId, '#cancel-selection-button');

     // Wait until selection is removed.
     await remoteCall.waitForElementLost(appId, '#file-list li[selected]');

     // Send Tab keys until a file item is selected.
     await tabUntilFileSelected(appId);

     // Check: The 3rd item only is selected.
     const fileRows = await remoteCall.callRemoteTestUtil(
         'deepQueryAllElements', appId, ['#file-list li']);
     chrome.test.assertEq(5, fileRows.length);
     selectedRows = fileRows.filter(item => 'selected' in item.attributes);
     chrome.test.assertEq(1, selectedRows.length);
     chrome.test.assertEq(2, fileRows.indexOf(selectedRows[0]));
   };

   /**
    * Verifies the total number of a11y messages and asserts the latest message
    * is the expected one.
    *
    * @param {string} appId
    * @param {number} expectedCount
    * @param {?string} expectedMessage
    * @return {string} Latest a11y message.
    */
   async function countAndCheckLatestA11yMessage(
       appId, expectedCount, expectedMessage) {
     const a11yMessages =
         await remoteCall.callRemoteTestUtil('getA11yAnnounces', appId, []);
     if (expectedMessage === null || expectedMessage === undefined) {
       return '';
     }
     const latestMessage = a11yMessages[a11yMessages.length - 1];
     chrome.test.assertEq(
         expectedCount, a11yMessages.length,
         'Wrong number of a11y messages: latest message: ' + latestMessage);
     chrome.test.assertEq(expectedMessage, latestMessage);
     return latestMessage;
   }

   /**
    * Tests that selecting/de-selecting files with keyboard produces a11y
    * messages.
    *
    * NOTE: Test shared with grid_view.js.
    * @param {boolean=} isGridView if the test is testing the grid view.
    */
   testcase.fileListKeyboardSelectionA11y = async (isGridView) => {
     const appId = await setupAndWaitUntilReady(
         RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

     let a11yMsgCount = 0;
     const viewSelector = isGridView ? 'grid#file-list' : '#file-list';
     if (isGridView) {
       // Click view-button again to switch to detail view.
       await remoteCall.waitAndClickElement(appId, '#view-button');

       // Clicking #view-button adds 1 a11y message.
       ++a11yMsgCount;
     }

     // Keys used for keyboard navigation in the file list.
     const homeKey = [viewSelector, 'Home', false, false, false];
     const ctrlDownKey = [viewSelector, 'ArrowDown', true, false, false];
     const ctrlSpaceKey = [viewSelector, ' ', true, false, false];
     const shiftEndKey = [viewSelector, 'End', false, true, false];
     const ctrlAKey = [viewSelector + ' li', 'a', true, false, false];
     const escKey = [viewSelector, 'Escape', false, false, false];

     // Select first item with Home key.
     await remoteCall.fakeKeyDown(appId, ...homeKey);

     // Navigating with Home key doesn't use aria-live message, it only uses the
     // native listbox selection state messages.
     await countAndCheckLatestA11yMessage(appId, a11yMsgCount);

     // Ctrl+Down & Ctrl+Space to select second item: Beautiful Song.ogg
     await remoteCall.fakeKeyDown(appId, ...ctrlDownKey);
     await remoteCall.fakeKeyDown(appId, ...ctrlSpaceKey);

     // Check: Announced "Beautiful Song.add" added to selection.
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount, 'Added Beautiful Song.ogg to selection.');

     // Shift+End to select from 2nd item to the last item.
     await remoteCall.fakeKeyDown(appId, ...shiftEndKey);

     // Check: Announced range selection from "Beautiful Song.add" to hello.txt.
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount,
         'Selected a range of 4 entries from Beautiful Song.ogg to hello.txt.');

     // Ctrl+Space to de-select currently focused item (last item).
     await remoteCall.fakeKeyDown(appId, ...ctrlSpaceKey);

     // Check: Announced de-selecting hello.txt
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount, 'Removed hello.txt from selection.');

     // Ctrl+A to select all items.
     await remoteCall.fakeKeyDown(appId, ...ctrlAKey);

     // Check: Announced selecting all entries.
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount, 'Selected all entries.');

     // Esc key to deselect all.
     await remoteCall.fakeKeyDown(appId, ...escKey);

     // Check: Announced deselecting all entries.
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount, 'Removed all entries from selection.');
   };

   /**
    * Tests that selecting/de-selecting files with mouse produces a11y messages.
    *
    * NOTE: Test shared with grid_view.js.
    * @param {boolean=} isGridView if the test is testing the grid view.
    */
   testcase.fileListMouseSelectionA11y = async (isGridView) => {
     const appId = await setupAndWaitUntilReady(
         RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

     let a11yMsgCount = 0;
     if (isGridView) {
       // Click view-button again to switch to detail view.
       await remoteCall.waitAndClickElement(appId, '#view-button');

       // Clicking #view-button adds 1 a11y message.
       ++a11yMsgCount;
     }

     // Click first item.
     await remoteCall.waitAndClickElement(
         appId, '#file-list [file-name="photos"]');

     // Simple click to select a file doesn't use aria-live message, it only
     // uses the native listbox selection state messages.
     await countAndCheckLatestA11yMessage(appId, a11yMsgCount);

     // Ctrl+Click second item.
     await remoteCall.waitAndClickElement(
         appId, '#file-list [file-name="Beautiful Song.ogg"]', {ctrl: true});

     // Check: Announced "Beautiful Song.add" added to selection.
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount, 'Added Beautiful Song.ogg to selection.');

     // Shift+Click last item.
     await remoteCall.waitAndClickElement(
         appId, '#file-list [file-name="hello.txt"]', {shift: true});

     // Check: Announced range selection from "Beautiful Song.add" to hello.txt.
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount,
         'Selected a range of 4 entries from Beautiful Song.ogg to hello.txt.');

     // Ctrl+Click to de-select the last item.
     await remoteCall.waitAndClickElement(
         appId, '#file-list [file-name="hello.txt"]', {ctrl: true});

     // Check: Announced de-selecting hello.txt
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount, 'Removed hello.txt from selection.');

     // Click on "Cancel selection" button.
     await remoteCall.waitAndClickElement(appId, '#cancel-selection-button');

     // Check: Announced deselecting all entries.
     await countAndCheckLatestA11yMessage(
         appId, ++a11yMsgCount, 'Removed all entries from selection.');
   };

   /**
    * Tests the deletion of one or multiple items. After deletion, one of the
    * remaining items should have the lead, but shouldn't be in check-select
    * mode.
    */
   testcase.fileListDeleteMultipleFiles = async () => {
     const appId = await setupAndWaitUntilReady(
         RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

     // Select first 2 items.
     await remoteCall.waitAndClickElement(
         appId, '#file-list [file-name="world.ogv"]');
     await remoteCall.waitAndClickElement(
         appId, '#file-list [file-name="hello.txt"]', {shift: true});

     // Delete item and confirm delete.
     await remoteCall.waitAndClickElement(appId, '#delete-button');
     await remoteCall.waitAndClickElement(
         appId, '.files-confirm-dialog .cr-dialog-ok');

     // Wait for completion of file deletion.
     await remoteCall.waitForElementLost(
         appId, '#file-list [file-name="world.ogv"]');
     await remoteCall.waitForElementLost(
         appId, '#file-list [file-name="hello.txt"]');

     // Check: no selection state.
     await remoteCall.waitForElementLost(appId, 'body.check-select');

     // Check: lead state of last item.
     let item = await remoteCall.waitForElement(
         appId, '#file-list [file-name="My Desktop Background.png"]');
     chrome.test.assertTrue('lead' in item.attributes);

     // Check: selected state of last item.
     chrome.test.assertTrue('selected' in item.attributes);


     // Select and delete first item.
     await remoteCall.waitAndClickElement(
         appId, '#file-list [file-name="photos"]');
     await remoteCall.waitAndClickElement(appId, '#delete-button');
     await remoteCall.waitAndClickElement(
         appId, '.files-confirm-dialog .cr-dialog-ok');

     // Wait for file deletion.
     await remoteCall.waitForElementLost(
         appId, '#file-list [file-name="photos"]');

     // Check: no selection state.
     await remoteCall.waitForElementLost(appId, 'body.check-select');

     // Check: lead state of first item.
     item = await remoteCall.waitForElement(
         appId, '#file-list [file-name="Beautiful Song.ogg"]');
     chrome.test.assertTrue('lead' in item.attributes);

     // Check: selected state of first item.
     chrome.test.assertTrue('selected' in item.attributes);
   };
 })();
	// Copyright 2019 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.

	'use strict';

	(() => {
	/**
	* Send Tab keys to Files app until #file-list gets a selected item.
	*
	* Raise test failure if #file-list doesn't get anything selected in 20 tabs.
	*
	* NOTE:
	* 1. Sends a maximum of 20 tabs.
	* 2. The focused element after this function might NOT be #file-list, since
	* updating the selected item which is async can be detected after an extra
	* Tab has been sent.
	*/
	async function tabUntilFileSelected(appId) {
	// Check: the file-list should have nothing selected.
	const selectedRows = await remoteCall.callRemoteTestUtil(
	'deepQueryAllElements', appId, ['#file-list li[selected]']);
	chrome.test.assertEq(0, selectedRows.length);

	// Press the tab until file-list gets focus and select some file.
	for (let i = 0; i < 20; i++) {
	// Send Tab key.
	const result = await sendTestMessage({name: 'dispatchTabKey'});
	chrome.test.assertEq(
	result, 'tabKeyDispatched', 'Tab key dispatch failed');

	// Check if there is a file selected, and return if so.
	const selectedRows = await remoteCall.callRemoteTestUtil(
	'deepQueryAllElements', appId, ['#file-list li[selected]']);
	if (selectedRows.length > 0) {
	return;
	}
	}

	chrome.test.assertTrue(false, 'File list has no selection');
	}

	/**
	* Tests that file list column header have ARIA attributes.
	*/
	testcase.fileListAriaAttributes = async () => {
	const appId = await setupAndWaitUntilReady(
	RootPath.DOWNLOADS, [ENTRIES.beautiful], []);

	// Fetch column header.
	const columnHeadersQuery =
	['#detail-table .table-header [aria-describedby]'];
	const columnHeaders = await remoteCall.callRemoteTestUtil(
	'deepQueryAllElements', appId, [columnHeadersQuery, ['display']]);

	chrome.test.assertTrue(columnHeaders.length > 0);
	for (const header of columnHeaders) {
	// aria-describedby is used to tell users that they can click and which
	// type of sort asc/desc will happen.
	chrome.test.assertTrue('aria-describedby' in header.attributes);
	// role button is used so users know that it's clickable.
	chrome.test.assertEq('button', header.attributes.role);
	}
	};

	/**
	* Tests using tab to focus the file list will select the first item, if
	* nothing is selected.
	*/
	testcase.fileListFocusFirstItem = async () => {
	const appId = await setupAndWaitUntilReady(
	RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

	// Send Tab keys to make file selected.
	await tabUntilFileSelected(appId);

	// Check: The first file only is selected in the file entry rows.
	const fileRows = await remoteCall.callRemoteTestUtil(
	'deepQueryAllElements', appId, ['#file-list li']);
	chrome.test.assertEq(5, fileRows.length);
	const selectedRows = fileRows.filter(item => 'selected' in item.attributes);
	chrome.test.assertEq(1, selectedRows.length);
	chrome.test.assertEq(0, fileRows.indexOf(selectedRows[0]));
	};

	/**
	* Tests that after a multiple selection, canceling the selection and using
	* Tab to focus the files list it selects the item that was last focused.
	*/
	testcase.fileListSelectLastFocusedItem = async () => {
	const appId = await setupAndWaitUntilReady(
	RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

	// Check: the file-list should have nothing selected.
	let selectedRows = await remoteCall.callRemoteTestUtil(
	'deepQueryAllElements', appId, ['#file-list li[selected]']);
	chrome.test.assertEq(0, selectedRows.length);

	// Move to item 2.
	const downKey = ['#file-list', 'ArrowDown', false, false, false];
	for (let i = 0; i < 2; i++) {
	chrome.test.assertTrue(
	!!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, downKey),
	'ArrowDown failed');
	}

	// Select item 2 with Ctrl+Space.
	const ctrlSpace = ['#file-list', ' ', true, false, false];
	chrome.test.assertTrue(
	!!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, ctrlSpace),
	'Ctrl+Space failed');

	// Move to item 3 and Cltr+Space to add it to multi-selection.
	const ctrlDown = ['#file-list', 'ArrowDown', true, false, false];
	chrome.test.assertTrue(
	!!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, ctrlDown),
	'Ctrl+ArrowDown failed');
	chrome.test.assertTrue(
	!!await remoteCall.callRemoteTestUtil('fakeKeyDown', appId, ctrlSpace),
	'Ctrl+Space failed');

	// Check that items 2 and 3 are selected.
	selectedRows = await remoteCall.callRemoteTestUtil(
	'deepQueryAllElements', appId, ['#file-list li[selected]']);
	chrome.test.assertEq(2, selectedRows.length);

	// Cancel the selection.
	const button = ['#cancel-selection-button'];
	await remoteCall.waitAndClickElement(appId, '#cancel-selection-button');

	// Wait until selection is removed.
	await remoteCall.waitForElementLost(appId, '#file-list li[selected]');

	// Send Tab keys until a file item is selected.
	await tabUntilFileSelected(appId);

	// Check: The 3rd item only is selected.
	const fileRows = await remoteCall.callRemoteTestUtil(
	'deepQueryAllElements', appId, ['#file-list li']);
	chrome.test.assertEq(5, fileRows.length);
	selectedRows = fileRows.filter(item => 'selected' in item.attributes);
	chrome.test.assertEq(1, selectedRows.length);
	chrome.test.assertEq(2, fileRows.indexOf(selectedRows[0]));
	};

	/**
	* Verifies the total number of a11y messages and asserts the latest message
	* is the expected one.
	*
	* @param {string} appId
	* @param {number} expectedCount
	* @param {?string} expectedMessage
	* @return {string} Latest a11y message.
	*/
	async function countAndCheckLatestA11yMessage(
	appId, expectedCount, expectedMessage) {
	const a11yMessages =
	await remoteCall.callRemoteTestUtil('getA11yAnnounces', appId, []);
	if (expectedMessage === null \|\| expectedMessage === undefined) {
	return '';
	}
	const latestMessage = a11yMessages[a11yMessages.length - 1];
	chrome.test.assertEq(
	expectedCount, a11yMessages.length,
	'Wrong number of a11y messages: latest message: ' + latestMessage);
	chrome.test.assertEq(expectedMessage, latestMessage);
	return latestMessage;
	}

	/**
	* Tests that selecting/de-selecting files with keyboard produces a11y
	* messages.
	*
	* NOTE: Test shared with grid_view.js.
	* @param {boolean=} isGridView if the test is testing the grid view.
	*/
	testcase.fileListKeyboardSelectionA11y = async (isGridView) => {
	const appId = await setupAndWaitUntilReady(
	RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

	let a11yMsgCount = 0;
	const viewSelector = isGridView ? 'grid#file-list' : '#file-list';
	if (isGridView) {
	// Click view-button again to switch to detail view.
	await remoteCall.waitAndClickElement(appId, '#view-button');

	// Clicking #view-button adds 1 a11y message.
	++a11yMsgCount;
	}

	// Keys used for keyboard navigation in the file list.
	const homeKey = [viewSelector, 'Home', false, false, false];
	const ctrlDownKey = [viewSelector, 'ArrowDown', true, false, false];
	const ctrlSpaceKey = [viewSelector, ' ', true, false, false];
	const shiftEndKey = [viewSelector, 'End', false, true, false];
	const ctrlAKey = [viewSelector + ' li', 'a', true, false, false];
	const escKey = [viewSelector, 'Escape', false, false, false];

	// Select first item with Home key.
	await remoteCall.fakeKeyDown(appId, ...homeKey);

	// Navigating with Home key doesn't use aria-live message, it only uses the
	// native listbox selection state messages.
	await countAndCheckLatestA11yMessage(appId, a11yMsgCount);

	// Ctrl+Down & Ctrl+Space to select second item: Beautiful Song.ogg
	await remoteCall.fakeKeyDown(appId, ...ctrlDownKey);
	await remoteCall.fakeKeyDown(appId, ...ctrlSpaceKey);

	// Check: Announced "Beautiful Song.add" added to selection.
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount, 'Added Beautiful Song.ogg to selection.');

	// Shift+End to select from 2nd item to the last item.
	await remoteCall.fakeKeyDown(appId, ...shiftEndKey);

	// Check: Announced range selection from "Beautiful Song.add" to hello.txt.
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount,
	'Selected a range of 4 entries from Beautiful Song.ogg to hello.txt.');

	// Ctrl+Space to de-select currently focused item (last item).
	await remoteCall.fakeKeyDown(appId, ...ctrlSpaceKey);

	// Check: Announced de-selecting hello.txt
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount, 'Removed hello.txt from selection.');

	// Ctrl+A to select all items.
	await remoteCall.fakeKeyDown(appId, ...ctrlAKey);

	// Check: Announced selecting all entries.
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount, 'Selected all entries.');

	// Esc key to deselect all.
	await remoteCall.fakeKeyDown(appId, ...escKey);

	// Check: Announced deselecting all entries.
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount, 'Removed all entries from selection.');
	};

	/**
	* Tests that selecting/de-selecting files with mouse produces a11y messages.
	*
	* NOTE: Test shared with grid_view.js.
	* @param {boolean=} isGridView if the test is testing the grid view.
	*/
	testcase.fileListMouseSelectionA11y = async (isGridView) => {
	const appId = await setupAndWaitUntilReady(
	RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

	let a11yMsgCount = 0;
	if (isGridView) {
	// Click view-button again to switch to detail view.
	await remoteCall.waitAndClickElement(appId, '#view-button');

	// Clicking #view-button adds 1 a11y message.
	++a11yMsgCount;
	}

	// Click first item.
	await remoteCall.waitAndClickElement(
	appId, '#file-list [file-name="photos"]');

	// Simple click to select a file doesn't use aria-live message, it only
	// uses the native listbox selection state messages.
	await countAndCheckLatestA11yMessage(appId, a11yMsgCount);

	// Ctrl+Click second item.
	await remoteCall.waitAndClickElement(
	appId, '#file-list [file-name="Beautiful Song.ogg"]', {ctrl: true});

	// Check: Announced "Beautiful Song.add" added to selection.
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount, 'Added Beautiful Song.ogg to selection.');

	// Shift+Click last item.
	await remoteCall.waitAndClickElement(
	appId, '#file-list [file-name="hello.txt"]', {shift: true});

	// Check: Announced range selection from "Beautiful Song.add" to hello.txt.
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount,
	'Selected a range of 4 entries from Beautiful Song.ogg to hello.txt.');

	// Ctrl+Click to de-select the last item.
	await remoteCall.waitAndClickElement(
	appId, '#file-list [file-name="hello.txt"]', {ctrl: true});

	// Check: Announced de-selecting hello.txt
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount, 'Removed hello.txt from selection.');

	// Click on "Cancel selection" button.
	await remoteCall.waitAndClickElement(appId, '#cancel-selection-button');

	// Check: Announced deselecting all entries.
	await countAndCheckLatestA11yMessage(
	appId, ++a11yMsgCount, 'Removed all entries from selection.');
	};

	/**
	* Tests the deletion of one or multiple items. After deletion, one of the
	* remaining items should have the lead, but shouldn't be in check-select
	* mode.
	*/
	testcase.fileListDeleteMultipleFiles = async () => {
	const appId = await setupAndWaitUntilReady(
	RootPath.DOWNLOADS, BASIC_LOCAL_ENTRY_SET, []);

	// Select first 2 items.
	await remoteCall.waitAndClickElement(
	appId, '#file-list [file-name="world.ogv"]');
	await remoteCall.waitAndClickElement(
	appId, '#file-list [file-name="hello.txt"]', {shift: true});

	// Delete item and confirm delete.
	await remoteCall.waitAndClickElement(appId, '#delete-button');
	await remoteCall.waitAndClickElement(
	appId, '.files-confirm-dialog .cr-dialog-ok');

	// Wait for completion of file deletion.
	await remoteCall.waitForElementLost(
	appId, '#file-list [file-name="world.ogv"]');
	await remoteCall.waitForElementLost(
	appId, '#file-list [file-name="hello.txt"]');

	// Check: no selection state.
	await remoteCall.waitForElementLost(appId, 'body.check-select');

	// Check: lead state of last item.
	let item = await remoteCall.waitForElement(
	appId, '#file-list [file-name="My Desktop Background.png"]');
	chrome.test.assertTrue('lead' in item.attributes);

	// Check: selected state of last item.
	chrome.test.assertTrue('selected' in item.attributes);


	// Select and delete first item.
	await remoteCall.waitAndClickElement(
	appId, '#file-list [file-name="photos"]');
	await remoteCall.waitAndClickElement(appId, '#delete-button');
	await remoteCall.waitAndClickElement(
	appId, '.files-confirm-dialog .cr-dialog-ok');

	// Wait for file deletion.
	await remoteCall.waitForElementLost(
	appId, '#file-list [file-name="photos"]');

	// Check: no selection state.
	await remoteCall.waitForElementLost(appId, 'body.check-select');

	// Check: lead state of first item.
	item = await remoteCall.waitForElement(
	appId, '#file-list [file-name="Beautiful Song.ogg"]');
	chrome.test.assertTrue('lead' in item.attributes);

	// Check: selected state of first item.
	chrome.test.assertTrue('selected' in item.attributes);
	};
	})();