polygerrit-ui/app/embed/diff/gr-diff/gr-diff-element_test.ts - gerrit/

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	/**
	* @license
	* Copyright 2023 Google LLC
	* SPDX-License-Identifier: Apache-2.0
	*/
	import '../../../test/common-test-setup';
	import {createDiff, createEmptyDiff} from '../../../test/test-data-generators';
	import './gr-diff-element';
	import {GrDiffElement} from './gr-diff-element';
	import {querySelectorAll} from '../../../utils/dom-util';
	import '@polymer/paper-button/paper-button';
	import {
	DiffContent,
	DiffInfo,
	DiffPreferencesInfo,
	DiffViewMode,
	IgnoreWhitespaceType,
	} from '../../../api/diff';
	import {query, queryAndAssert, waitUntil} from '../../../test/test-utils';
	import {waitForEventOnce} from '../../../utils/event-util';
	import {ImageInfo} from '../../../types/common';
	import {fixture, html, assert} from '@open-wc/testing';
	import {createDefaultDiffPrefs} from '../../../constants/constants';
	import {DiffModel, diffModelToken} from '../gr-diff-model/gr-diff-model';
	import {wrapInProvider} from '../../../models/di-provider-element';

	const DEFAULT_PREFS = createDefaultDiffPrefs();

	suite('gr-diff-element tests', () => {
	let element: GrDiffElement;
	let model: DiffModel;

	const MINIMAL_PREFS: DiffPreferencesInfo = {
	tab_size: 2,
	line_length: 80,
	font_size: 12,
	context: 3,
	ignore_whitespace: 'IGNORE_NONE',
	};

	setup(async () => {
	model = new DiffModel(document);
	element = (
	await fixture(
	wrapInProvider(
	html`<gr-diff-element></gr-diff-element>`,
	diffModelToken,
	model
	)
	)
	).querySelector('gr-diff-element')!;
	});

	suite('rendering', () => {
	test('empty diff', async () => {
	await element.updateComplete;
	assert.lightDom.equal(
	element,
	/* HTML */ `
	<div class="diffContainer sideBySide">
	<table id="diffTable">
	<colgroup>
	<col class="left" width="48" />
	<col class="left" />
	<col class="right" width="48" />
	<col class="right" />
	</colgroup>
	</table>
	</div>
	`
	);
	});

	test('a unified diff lit', async () => {
	model.updateState({
	diff: createDiff(),
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.UNIFIED},
	});
	await element.updateComplete;
	await waitForEventOnce(element, 'render');
	assert.lightDom.equal(
	element,
	/* HTML */ `
	<div class="diffContainer unified">
	<table id="diffTable">
	<colgroup>
	<col class="left" width="48" />
	<col class="right" width="48" />
	<col class="right" />
	</colgroup>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-LOST right-button-LOST right-content-LOST"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="LOST"></td>
	<td class="lineNum right" data-value="LOST"></td>
	<td class="both content lost no-intraline-info right"></td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-FILE right-button-FILE right-content-FILE"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="FILE">
	<button
	aria-label="Add file comment"
	class="left lineNumButton"
	data-value="FILE"
	id="left-button-FILE"
	tabindex="-1"
	>
	FILE
	</button>
	</td>
	<td class="lineNum right" data-value="FILE">
	<button
	aria-label="Add file comment"
	class="lineNumButton right"
	data-value="FILE"
	id="right-button-FILE"
	tabindex="-1"
	>
	FILE
	</button>
	</td>
	<td class="both content file no-intraline-info right"></td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-1 right-button-1 right-content-1"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="1">
	<button
	aria-label="1 unmodified"
	class="left lineNumButton"
	data-value="1"
	id="left-button-1"
	tabindex="-1"
	>
	1
	</button>
	</td>
	<td class="lineNum right" data-value="1">
	<button
	aria-label="1 unmodified"
	class="lineNumButton right"
	data-value="1"
	id="right-button-1"
	tabindex="-1"
	>
	1
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-1"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-2 right-button-2 right-content-2"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="2">
	<button
	aria-label="2 unmodified"
	class="left lineNumButton"
	data-value="2"
	id="left-button-2"
	tabindex="-1"
	>
	2
	</button>
	</td>
	<td class="lineNum right" data-value="2">
	<button
	aria-label="2 unmodified"
	class="lineNumButton right"
	data-value="2"
	id="right-button-2"
	tabindex="-1"
	>
	2
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-2"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-3 right-button-3 right-content-3"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="3">
	<button
	aria-label="3 unmodified"
	class="left lineNumButton"
	data-value="3"
	id="left-button-3"
	tabindex="-1"
	>
	3
	</button>
	</td>
	<td class="lineNum right" data-value="3">
	<button
	aria-label="3 unmodified"
	class="lineNumButton right"
	data-value="3"
	id="right-button-3"
	tabindex="-1"
	>
	3
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-3"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-4 right-button-4 right-content-4"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="4">
	<button
	aria-label="4 unmodified"
	class="left lineNumButton"
	data-value="4"
	id="left-button-4"
	tabindex="-1"
	>
	4
	</button>
	</td>
	<td class="lineNum right" data-value="4">
	<button
	aria-label="4 unmodified"
	class="lineNumButton right"
	data-value="4"
	id="right-button-4"
	tabindex="-1"
	>
	4
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-4"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section total">
	<tr
	aria-labelledby="right-button-5 right-content-5"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="5">
	<button
	aria-label="5 added"
	class="lineNumButton right"
	data-value="5"
	id="right-button-5"
	tabindex="-1"
	>
	5
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-5"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-6 right-content-6"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="6">
	<button
	aria-label="6 added"
	class="lineNumButton right"
	data-value="6"
	id="right-button-6"
	tabindex="-1"
	>
	6
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-6"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-7 right-content-7"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="7">
	<button
	aria-label="7 added"
	class="lineNumButton right"
	data-value="7"
	id="right-button-7"
	tabindex="-1"
	>
	7
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-7"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-5 right-button-8 right-content-8"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="5">
	<button
	aria-label="5 unmodified"
	class="left lineNumButton"
	data-value="5"
	id="left-button-5"
	tabindex="-1"
	>
	5
	</button>
	</td>
	<td class="lineNum right" data-value="8">
	<button
	aria-label="8 unmodified"
	class="lineNumButton right"
	data-value="8"
	id="right-button-8"
	tabindex="-1"
	>
	8
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-8"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-6 right-button-9 right-content-9"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="6">
	<button
	aria-label="6 unmodified"
	class="left lineNumButton"
	data-value="6"
	id="left-button-6"
	tabindex="-1"
	>
	6
	</button>
	</td>
	<td class="lineNum right" data-value="9">
	<button
	aria-label="9 unmodified"
	class="lineNumButton right"
	data-value="9"
	id="right-button-9"
	tabindex="-1"
	>
	9
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-9"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-7 right-button-10 right-content-10"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="7">
	<button
	aria-label="7 unmodified"
	class="left lineNumButton"
	data-value="7"
	id="left-button-7"
	tabindex="-1"
	>
	7
	</button>
	</td>
	<td class="lineNum right" data-value="10">
	<button
	aria-label="10 unmodified"
	class="lineNumButton right"
	data-value="10"
	id="right-button-10"
	tabindex="-1"
	>
	10
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-10"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-8 right-button-11 right-content-11"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="8">
	<button
	aria-label="8 unmodified"
	class="left lineNumButton"
	data-value="8"
	id="left-button-8"
	tabindex="-1"
	>
	8
	</button>
	</td>
	<td class="lineNum right" data-value="11">
	<button
	aria-label="11 unmodified"
	class="lineNumButton right"
	data-value="11"
	id="right-button-11"
	tabindex="-1"
	>
	11
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-11"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-9 right-button-12 right-content-12"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="9">
	<button
	aria-label="9 unmodified"
	class="left lineNumButton"
	data-value="9"
	id="left-button-9"
	tabindex="-1"
	>
	9
	</button>
	</td>
	<td class="lineNum right" data-value="12">
	<button
	aria-label="12 unmodified"
	class="lineNumButton right"
	data-value="12"
	id="right-button-12"
	tabindex="-1"
	>
	12
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-12"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section total">
	<tr
	aria-labelledby="left-button-10 left-content-10"
	class="diff-row remove unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="10">
	<button
	aria-label="10 removed"
	class="left lineNumButton"
	data-value="10"
	id="left-button-10"
	tabindex="-1"
	>
	10
	</button>
	</td>
	<td class="blankLineNum right"></td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-10"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-11 left-content-11"
	class="diff-row remove unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="11">
	<button
	aria-label="11 removed"
	class="left lineNumButton"
	data-value="11"
	id="left-button-11"
	tabindex="-1"
	>
	11
	</button>
	</td>
	<td class="blankLineNum right"></td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-11"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-12 left-content-12"
	class="diff-row remove unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="12">
	<button
	aria-label="12 removed"
	class="left lineNumButton"
	data-value="12"
	id="left-button-12"
	tabindex="-1"
	>
	12
	</button>
	</td>
	<td class="blankLineNum right"></td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-12"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-13 left-content-13"
	class="diff-row remove unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="13">
	<button
	aria-label="13 removed"
	class="left lineNumButton"
	data-value="13"
	id="left-button-13"
	tabindex="-1"
	>
	13
	</button>
	</td>
	<td class="blankLineNum right"></td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-13"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta ignoredWhitespaceOnly section">
	<tr
	aria-labelledby="right-button-13 right-content-13"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="13">
	<button
	aria-label="13 added"
	class="lineNumButton right"
	data-value="13"
	id="right-button-13"
	tabindex="-1"
	>
	13
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-13"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-14 right-content-14"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="14">
	<button
	aria-label="14 added"
	class="lineNumButton right"
	data-value="14"
	id="right-button-14"
	tabindex="-1"
	>
	14
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-14"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section">
	<tr
	aria-labelledby="left-button-16 left-content-16"
	class="diff-row remove unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="16">
	<button
	aria-label="16 removed"
	class="left lineNumButton"
	data-value="16"
	id="left-button-16"
	tabindex="-1"
	>
	16
	</button>
	</td>
	<td class="blankLineNum right"></td>
	<td class="content left remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-16"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-15 right-content-15"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="15">
	<button
	aria-label="15 added"
	class="lineNumButton right"
	data-value="15"
	id="right-button-15"
	tabindex="-1"
	>
	15
	</button>
	</td>
	<td class="add content right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-15"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-17 right-button-16 right-content-16"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="17">
	<button
	aria-label="17 unmodified"
	class="left lineNumButton"
	data-value="17"
	id="left-button-17"
	tabindex="-1"
	>
	17
	</button>
	</td>
	<td class="lineNum right" data-value="16">
	<button
	aria-label="16 unmodified"
	class="lineNumButton right"
	data-value="16"
	id="right-button-16"
	tabindex="-1"
	>
	16
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-16"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-18 right-button-17 right-content-17"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="18">
	<button
	aria-label="18 unmodified"
	class="left lineNumButton"
	data-value="18"
	id="left-button-18"
	tabindex="-1"
	>
	18
	</button>
	</td>
	<td class="lineNum right" data-value="17">
	<button
	aria-label="17 unmodified"
	class="lineNumButton right"
	data-value="17"
	id="right-button-17"
	tabindex="-1"
	>
	17
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-17"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-19 right-button-18 right-content-18"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="19">
	<button
	aria-label="19 unmodified"
	class="left lineNumButton"
	data-value="19"
	id="left-button-19"
	tabindex="-1"
	>
	19
	</button>
	</td>
	<td class="lineNum right" data-value="18">
	<button
	aria-label="18 unmodified"
	class="lineNumButton right"
	data-value="18"
	id="right-button-18"
	tabindex="-1"
	>
	18
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-18"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="contextControl section">
	<tr class="above contextBackground unified">
	<td class="contextLineNum"></td>
	<td class="contextLineNum"></td>
	<td></td>
	</tr>
	<tr class="dividerRow show-both">
	<td class="dividerCell" colspan="3">
	<gr-context-controls showconfig="both">
	</gr-context-controls>
	</td>
	</tr>
	<tr class="below contextBackground unified">
	<td class="contextLineNum"></td>
	<td class="contextLineNum"></td>
	<td></td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-38 right-button-37 right-content-37"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="38">
	<button
	aria-label="38 unmodified"
	class="left lineNumButton"
	data-value="38"
	id="left-button-38"
	tabindex="-1"
	>
	38
	</button>
	</td>
	<td class="lineNum right" data-value="37">
	<button
	aria-label="37 unmodified"
	class="lineNumButton right"
	data-value="37"
	id="right-button-37"
	tabindex="-1"
	>
	37
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-37"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-39 right-button-38 right-content-38"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="39">
	<button
	aria-label="39 unmodified"
	class="left lineNumButton"
	data-value="39"
	id="left-button-39"
	tabindex="-1"
	>
	39
	</button>
	</td>
	<td class="lineNum right" data-value="38">
	<button
	aria-label="38 unmodified"
	class="lineNumButton right"
	data-value="38"
	id="right-button-38"
	tabindex="-1"
	>
	38
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-38"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-40 right-button-39 right-content-39"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="40">
	<button
	aria-label="40 unmodified"
	class="left lineNumButton"
	data-value="40"
	id="left-button-40"
	tabindex="-1"
	>
	40
	</button>
	</td>
	<td class="lineNum right" data-value="39">
	<button
	aria-label="39 unmodified"
	class="lineNumButton right"
	data-value="39"
	id="right-button-39"
	tabindex="-1"
	>
	39
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-39"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section total">
	<tr
	aria-labelledby="right-button-40 right-content-40"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="40">
	<button
	aria-label="40 added"
	class="lineNumButton right"
	data-value="40"
	id="right-button-40"
	tabindex="-1"
	>
	40
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-40"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-41 right-content-41"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="41">
	<button
	aria-label="41 added"
	class="lineNumButton right"
	data-value="41"
	id="right-button-41"
	tabindex="-1"
	>
	41
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-41"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-42 right-content-42"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="42">
	<button
	aria-label="42 added"
	class="lineNumButton right"
	data-value="42"
	id="right-button-42"
	tabindex="-1"
	>
	42
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-42"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-43 right-content-43"
	class="add diff-row unified"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="lineNum right" data-value="43">
	<button
	aria-label="43 added"
	class="lineNumButton right"
	data-value="43"
	id="right-button-43"
	tabindex="-1"
	>
	43
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-43"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-41 right-button-44 right-content-44"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="41">
	<button
	aria-label="41 unmodified"
	class="left lineNumButton"
	data-value="41"
	id="left-button-41"
	tabindex="-1"
	>
	41
	</button>
	</td>
	<td class="lineNum right" data-value="44">
	<button
	aria-label="44 unmodified"
	class="lineNumButton right"
	data-value="44"
	id="right-button-44"
	tabindex="-1"
	>
	44
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-44"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-42 right-button-45 right-content-45"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="42">
	<button
	aria-label="42 unmodified"
	class="left lineNumButton"
	data-value="42"
	id="left-button-42"
	tabindex="-1"
	>
	42
	</button>
	</td>
	<td class="lineNum right" data-value="45">
	<button
	aria-label="45 unmodified"
	class="lineNumButton right"
	data-value="45"
	id="right-button-45"
	tabindex="-1"
	>
	45
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-45"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-43 right-button-46 right-content-46"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="43">
	<button
	aria-label="43 unmodified"
	class="left lineNumButton"
	data-value="43"
	id="left-button-43"
	tabindex="-1"
	>
	43
	</button>
	</td>
	<td class="lineNum right" data-value="46">
	<button
	aria-label="46 unmodified"
	class="lineNumButton right"
	data-value="46"
	id="right-button-46"
	tabindex="-1"
	>
	46
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-46"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-44 right-button-47 right-content-47"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="44">
	<button
	aria-label="44 unmodified"
	class="left lineNumButton"
	data-value="44"
	id="left-button-44"
	tabindex="-1"
	>
	44
	</button>
	</td>
	<td class="lineNum right" data-value="47">
	<button
	aria-label="47 unmodified"
	class="lineNumButton right"
	data-value="47"
	id="right-button-47"
	tabindex="-1"
	>
	47
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-47"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-45 right-button-48 right-content-48"
	class="both diff-row unified"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="45">
	<button
	aria-label="45 unmodified"
	class="left lineNumButton"
	data-value="45"
	id="left-button-45"
	tabindex="-1"
	>
	45
	</button>
	</td>
	<td class="lineNum right" data-value="48">
	<button
	aria-label="48 unmodified"
	class="lineNumButton right"
	data-value="48"
	id="right-button-48"
	tabindex="-1"
	>
	48
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-48"
	></div>
	</td>
	</tr>
	</tbody>
	</table>
	</div>
	`,
	{
	ignoreTags: [
	'gr-context-controls-section',
	'gr-diff-section',
	'gr-diff-row',
	'gr-diff-text',
	'slot',
	],
	}
	);
	});

	test('a normal diff lit', async () => {
	model.updateState({
	diff: createDiff(),
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.SIDE_BY_SIDE},
	});
	await element.updateComplete;
	await waitForEventOnce(element, 'render');
	assert.lightDom.equal(
	element,
	/* HTML */ `
	<div class="diffContainer sideBySide">
	<table id="diffTable">
	<colgroup>
	<col class="left" width="48" />
	<col class="left" />
	<col class="right" width="48" />
	<col class="right" />
	</colgroup>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-LOST left-content-LOST right-button-LOST right-content-LOST"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="LOST"></td>
	<td class="both content left lost no-intraline-info"></td>
	<td class="lineNum right" data-value="LOST"></td>
	<td class="both content lost no-intraline-info right"></td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-FILE left-content-FILE right-button-FILE right-content-FILE"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="FILE">
	<button
	aria-label="Add file comment"
	class="left lineNumButton"
	data-value="FILE"
	id="left-button-FILE"
	tabindex="-1"
	>
	FILE
	</button>
	</td>
	<td class="both content file left no-intraline-info"></td>
	<td class="lineNum right" data-value="FILE">
	<button
	aria-label="Add file comment"
	class="lineNumButton right"
	data-value="FILE"
	id="right-button-FILE"
	tabindex="-1"
	>
	FILE
	</button>
	</td>
	<td class="both content file no-intraline-info right"></td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-1 left-content-1 right-button-1 right-content-1"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="1">
	<button
	aria-label="1 unmodified"
	class="left lineNumButton"
	data-value="1"
	id="left-button-1"
	tabindex="-1"
	>
	1
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-1"
	></div>
	</td>
	<td class="lineNum right" data-value="1">
	<button
	aria-label="1 unmodified"
	class="lineNumButton right"
	data-value="1"
	id="right-button-1"
	tabindex="-1"
	>
	1
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-1"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-2 left-content-2 right-button-2 right-content-2"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="2">
	<button
	aria-label="2 unmodified"
	class="left lineNumButton"
	data-value="2"
	id="left-button-2"
	tabindex="-1"
	>
	2
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-2"
	></div>
	</td>
	<td class="lineNum right" data-value="2">
	<button
	aria-label="2 unmodified"
	class="lineNumButton right"
	data-value="2"
	id="right-button-2"
	tabindex="-1"
	>
	2
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-2"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-3 left-content-3 right-button-3 right-content-3"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="3">
	<button
	aria-label="3 unmodified"
	class="left lineNumButton"
	data-value="3"
	id="left-button-3"
	tabindex="-1"
	>
	3
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-3"
	></div>
	</td>
	<td class="lineNum right" data-value="3">
	<button
	aria-label="3 unmodified"
	class="lineNumButton right"
	data-value="3"
	id="right-button-3"
	tabindex="-1"
	>
	3
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-3"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-4 left-content-4 right-button-4 right-content-4"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="4">
	<button
	aria-label="4 unmodified"
	class="left lineNumButton"
	data-value="4"
	id="left-button-4"
	tabindex="-1"
	>
	4
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-4"
	></div>
	</td>
	<td class="lineNum right" data-value="4">
	<button
	aria-label="4 unmodified"
	class="lineNumButton right"
	data-value="4"
	id="right-button-4"
	tabindex="-1"
	>
	4
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-4"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section total">
	<tr
	aria-labelledby="right-button-5 right-content-5"
	class="diff-row side-by-side"
	left-type="blank"
	right-type="add"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="blank left no-intraline-info">
	<div class="contentText" data-side="left"></div>
	</td>
	<td class="lineNum right" data-value="5">
	<button
	aria-label="5 added"
	class="lineNumButton right"
	data-value="5"
	id="right-button-5"
	tabindex="-1"
	>
	5
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-5"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-6 right-content-6"
	class="diff-row side-by-side"
	left-type="blank"
	right-type="add"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="blank left no-intraline-info">
	<div class="contentText" data-side="left"></div>
	</td>
	<td class="lineNum right" data-value="6">
	<button
	aria-label="6 added"
	class="lineNumButton right"
	data-value="6"
	id="right-button-6"
	tabindex="-1"
	>
	6
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-6"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-7 right-content-7"
	class="diff-row side-by-side"
	left-type="blank"
	right-type="add"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="blank left no-intraline-info">
	<div class="contentText" data-side="left"></div>
	</td>
	<td class="lineNum right" data-value="7">
	<button
	aria-label="7 added"
	class="lineNumButton right"
	data-value="7"
	id="right-button-7"
	tabindex="-1"
	>
	7
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-7"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-5 left-content-5 right-button-8 right-content-8"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="5">
	<button
	aria-label="5 unmodified"
	class="left lineNumButton"
	data-value="5"
	id="left-button-5"
	tabindex="-1"
	>
	5
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-5"
	></div>
	</td>
	<td class="lineNum right" data-value="8">
	<button
	aria-label="8 unmodified"
	class="lineNumButton right"
	data-value="8"
	id="right-button-8"
	tabindex="-1"
	>
	8
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-8"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-6 left-content-6 right-button-9 right-content-9"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="6">
	<button
	aria-label="6 unmodified"
	class="left lineNumButton"
	data-value="6"
	id="left-button-6"
	tabindex="-1"
	>
	6
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-6"
	></div>
	</td>
	<td class="lineNum right" data-value="9">
	<button
	aria-label="9 unmodified"
	class="lineNumButton right"
	data-value="9"
	id="right-button-9"
	tabindex="-1"
	>
	9
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-9"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-7 left-content-7 right-button-10 right-content-10"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="7">
	<button
	aria-label="7 unmodified"
	class="left lineNumButton"
	data-value="7"
	id="left-button-7"
	tabindex="-1"
	>
	7
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-7"
	></div>
	</td>
	<td class="lineNum right" data-value="10">
	<button
	aria-label="10 unmodified"
	class="lineNumButton right"
	data-value="10"
	id="right-button-10"
	tabindex="-1"
	>
	10
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-10"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-8 left-content-8 right-button-11 right-content-11"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="8">
	<button
	aria-label="8 unmodified"
	class="left lineNumButton"
	data-value="8"
	id="left-button-8"
	tabindex="-1"
	>
	8
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-8"
	></div>
	</td>
	<td class="lineNum right" data-value="11">
	<button
	aria-label="11 unmodified"
	class="lineNumButton right"
	data-value="11"
	id="right-button-11"
	tabindex="-1"
	>
	11
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-11"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-9 left-content-9 right-button-12 right-content-12"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="9">
	<button
	aria-label="9 unmodified"
	class="left lineNumButton"
	data-value="9"
	id="left-button-9"
	tabindex="-1"
	>
	9
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-9"
	></div>
	</td>
	<td class="lineNum right" data-value="12">
	<button
	aria-label="12 unmodified"
	class="lineNumButton right"
	data-value="12"
	id="right-button-12"
	tabindex="-1"
	>
	12
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-12"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section total">
	<tr
	aria-labelledby="left-button-10 left-content-10"
	class="diff-row side-by-side"
	left-type="remove"
	right-type="blank"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="10">
	<button
	aria-label="10 removed"
	class="left lineNumButton"
	data-value="10"
	id="left-button-10"
	tabindex="-1"
	>
	10
	</button>
	</td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-10"
	></div>
	</td>
	<td class="blankLineNum right"></td>
	<td class="blank no-intraline-info right">
	<div class="contentText" data-side="right"></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-11 left-content-11"
	class="diff-row side-by-side"
	left-type="remove"
	right-type="blank"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="11">
	<button
	aria-label="11 removed"
	class="left lineNumButton"
	data-value="11"
	id="left-button-11"
	tabindex="-1"
	>
	11
	</button>
	</td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-11"
	></div>
	</td>
	<td class="blankLineNum right"></td>
	<td class="blank no-intraline-info right">
	<div class="contentText" data-side="right"></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-12 left-content-12"
	class="diff-row side-by-side"
	left-type="remove"
	right-type="blank"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="12">
	<button
	aria-label="12 removed"
	class="left lineNumButton"
	data-value="12"
	id="left-button-12"
	tabindex="-1"
	>
	12
	</button>
	</td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-12"
	></div>
	</td>
	<td class="blankLineNum right"></td>
	<td class="blank no-intraline-info right">
	<div class="contentText" data-side="right"></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-13 left-content-13"
	class="diff-row side-by-side"
	left-type="remove"
	right-type="blank"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="13">
	<button
	aria-label="13 removed"
	class="left lineNumButton"
	data-value="13"
	id="left-button-13"
	tabindex="-1"
	>
	13
	</button>
	</td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-13"
	></div>
	</td>
	<td class="blankLineNum right"></td>
	<td class="blank no-intraline-info right">
	<div class="contentText" data-side="right"></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta ignoredWhitespaceOnly section">
	<tr
	aria-labelledby="left-button-14 left-content-14 right-button-13 right-content-13"
	class="diff-row side-by-side"
	left-type="remove"
	right-type="add"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="14">
	<button
	aria-label="14 removed"
	class="left lineNumButton"
	data-value="14"
	id="left-button-14"
	tabindex="-1"
	>
	14
	</button>
	</td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-14"
	></div>
	</td>
	<td class="lineNum right" data-value="13">
	<button
	aria-label="13 added"
	class="lineNumButton right"
	data-value="13"
	id="right-button-13"
	tabindex="-1"
	>
	13
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-13"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-15 left-content-15 right-button-14 right-content-14"
	class="diff-row side-by-side"
	left-type="remove"
	right-type="add"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="15">
	<button
	aria-label="15 removed"
	class="left lineNumButton"
	data-value="15"
	id="left-button-15"
	tabindex="-1"
	>
	15
	</button>
	</td>
	<td class="content left no-intraline-info remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-15"
	></div>
	</td>
	<td class="lineNum right" data-value="14">
	<button
	aria-label="14 added"
	class="lineNumButton right"
	data-value="14"
	id="right-button-14"
	tabindex="-1"
	>
	14
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-14"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section">
	<tr
	aria-labelledby="left-button-16 left-content-16 right-button-15 right-content-15"
	class="diff-row side-by-side"
	left-type="remove"
	right-type="add"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="16">
	<button
	aria-label="16 removed"
	class="left lineNumButton"
	data-value="16"
	id="left-button-16"
	tabindex="-1"
	>
	16
	</button>
	</td>
	<td class="content left remove">
	<div
	class="contentText"
	data-side="left"
	id="left-content-16"
	></div>
	</td>
	<td class="lineNum right" data-value="15">
	<button
	aria-label="15 added"
	class="lineNumButton right"
	data-value="15"
	id="right-button-15"
	tabindex="-1"
	>
	15
	</button>
	</td>
	<td class="add content right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-15"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-17 left-content-17 right-button-16 right-content-16"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="17">
	<button
	aria-label="17 unmodified"
	class="left lineNumButton"
	data-value="17"
	id="left-button-17"
	tabindex="-1"
	>
	17
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-17"
	></div>
	</td>
	<td class="lineNum right" data-value="16">
	<button
	aria-label="16 unmodified"
	class="lineNumButton right"
	data-value="16"
	id="right-button-16"
	tabindex="-1"
	>
	16
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-16"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-18 left-content-18 right-button-17 right-content-17"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="18">
	<button
	aria-label="18 unmodified"
	class="left lineNumButton"
	data-value="18"
	id="left-button-18"
	tabindex="-1"
	>
	18
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-18"
	></div>
	</td>
	<td class="lineNum right" data-value="17">
	<button
	aria-label="17 unmodified"
	class="lineNumButton right"
	data-value="17"
	id="right-button-17"
	tabindex="-1"
	>
	17
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-17"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-19 left-content-19 right-button-18 right-content-18"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="19">
	<button
	aria-label="19 unmodified"
	class="left lineNumButton"
	data-value="19"
	id="left-button-19"
	tabindex="-1"
	>
	19
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-19"
	></div>
	</td>
	<td class="lineNum right" data-value="18">
	<button
	aria-label="18 unmodified"
	class="lineNumButton right"
	data-value="18"
	id="right-button-18"
	tabindex="-1"
	>
	18
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-18"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="contextControl section">
	<tr
	class="above contextBackground side-by-side"
	left-type="contextControl"
	right-type="contextControl"
	>
	<td class="contextLineNum"></td>
	<td></td>
	<td class="contextLineNum"></td>
	<td></td>
	</tr>
	<tr class="dividerRow show-both">
	<td class="dividerCell" colspan="4">
	<gr-context-controls
	showconfig="both"
	></gr-context-controls>
	</td>
	</tr>
	<tr
	class="below contextBackground side-by-side"
	left-type="contextControl"
	right-type="contextControl"
	>
	<td class="contextLineNum"></td>
	<td></td>
	<td class="contextLineNum"></td>
	<td></td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-38 left-content-38 right-button-37 right-content-37"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="38">
	<button
	aria-label="38 unmodified"
	class="left lineNumButton"
	data-value="38"
	id="left-button-38"
	tabindex="-1"
	>
	38
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-38"
	></div>
	</td>
	<td class="lineNum right" data-value="37">
	<button
	aria-label="37 unmodified"
	class="lineNumButton right"
	data-value="37"
	id="right-button-37"
	tabindex="-1"
	>
	37
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-37"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-39 left-content-39 right-button-38 right-content-38"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="39">
	<button
	aria-label="39 unmodified"
	class="left lineNumButton"
	data-value="39"
	id="left-button-39"
	tabindex="-1"
	>
	39
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-39"
	></div>
	</td>
	<td class="lineNum right" data-value="38">
	<button
	aria-label="38 unmodified"
	class="lineNumButton right"
	data-value="38"
	id="right-button-38"
	tabindex="-1"
	>
	38
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-38"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-40 left-content-40 right-button-39 right-content-39"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="40">
	<button
	aria-label="40 unmodified"
	class="left lineNumButton"
	data-value="40"
	id="left-button-40"
	tabindex="-1"
	>
	40
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-40"
	></div>
	</td>
	<td class="lineNum right" data-value="39">
	<button
	aria-label="39 unmodified"
	class="lineNumButton right"
	data-value="39"
	id="right-button-39"
	tabindex="-1"
	>
	39
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-39"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="delta section total">
	<tr
	aria-labelledby="right-button-40 right-content-40"
	class="diff-row side-by-side"
	left-type="blank"
	right-type="add"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="blank left no-intraline-info">
	<div class="contentText" data-side="left"></div>
	</td>
	<td class="lineNum right" data-value="40">
	<button
	aria-label="40 added"
	class="lineNumButton right"
	data-value="40"
	id="right-button-40"
	tabindex="-1"
	>
	40
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-40"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-41 right-content-41"
	class="diff-row side-by-side"
	left-type="blank"
	right-type="add"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="blank left no-intraline-info">
	<div class="contentText" data-side="left"></div>
	</td>
	<td class="lineNum right" data-value="41">
	<button
	aria-label="41 added"
	class="lineNumButton right"
	data-value="41"
	id="right-button-41"
	tabindex="-1"
	>
	41
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-41"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-42 right-content-42"
	class="diff-row side-by-side"
	left-type="blank"
	right-type="add"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="blank left no-intraline-info">
	<div class="contentText" data-side="left"></div>
	</td>
	<td class="lineNum right" data-value="42">
	<button
	aria-label="42 added"
	class="lineNumButton right"
	data-value="42"
	id="right-button-42"
	tabindex="-1"
	>
	42
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-42"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="right-button-43 right-content-43"
	class="diff-row side-by-side"
	left-type="blank"
	right-type="add"
	tabindex="-1"
	>
	<td class="blankLineNum left"></td>
	<td class="blank left no-intraline-info">
	<div class="contentText" data-side="left"></div>
	</td>
	<td class="lineNum right" data-value="43">
	<button
	aria-label="43 added"
	class="lineNumButton right"
	data-value="43"
	id="right-button-43"
	tabindex="-1"
	>
	43
	</button>
	</td>
	<td class="add content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-43"
	></div>
	</td>
	</tr>
	</tbody>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-41 left-content-41 right-button-44 right-content-44"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="41">
	<button
	aria-label="41 unmodified"
	class="left lineNumButton"
	data-value="41"
	id="left-button-41"
	tabindex="-1"
	>
	41
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-41"
	></div>
	</td>
	<td class="lineNum right" data-value="44">
	<button
	aria-label="44 unmodified"
	class="lineNumButton right"
	data-value="44"
	id="right-button-44"
	tabindex="-1"
	>
	44
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-44"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-42 left-content-42 right-button-45 right-content-45"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="42">
	<button
	aria-label="42 unmodified"
	class="left lineNumButton"
	data-value="42"
	id="left-button-42"
	tabindex="-1"
	>
	42
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-42"
	></div>
	</td>
	<td class="lineNum right" data-value="45">
	<button
	aria-label="45 unmodified"
	class="lineNumButton right"
	data-value="45"
	id="right-button-45"
	tabindex="-1"
	>
	45
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-45"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-43 left-content-43 right-button-46 right-content-46"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="43">
	<button
	aria-label="43 unmodified"
	class="left lineNumButton"
	data-value="43"
	id="left-button-43"
	tabindex="-1"
	>
	43
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-43"
	></div>
	</td>
	<td class="lineNum right" data-value="46">
	<button
	aria-label="46 unmodified"
	class="lineNumButton right"
	data-value="46"
	id="right-button-46"
	tabindex="-1"
	>
	46
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-46"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-44 left-content-44 right-button-47 right-content-47"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="44">
	<button
	aria-label="44 unmodified"
	class="left lineNumButton"
	data-value="44"
	id="left-button-44"
	tabindex="-1"
	>
	44
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-44"
	></div>
	</td>
	<td class="lineNum right" data-value="47">
	<button
	aria-label="47 unmodified"
	class="lineNumButton right"
	data-value="47"
	id="right-button-47"
	tabindex="-1"
	>
	47
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-47"
	></div>
	</td>
	</tr>
	<tr
	aria-labelledby="left-button-45 left-content-45 right-button-48 right-content-48"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="45">
	<button
	aria-label="45 unmodified"
	class="left lineNumButton"
	data-value="45"
	id="left-button-45"
	tabindex="-1"
	>
	45
	</button>
	</td>
	<td class="both content left no-intraline-info">
	<div
	class="contentText"
	data-side="left"
	id="left-content-45"
	></div>
	</td>
	<td class="lineNum right" data-value="48">
	<button
	aria-label="48 unmodified"
	class="lineNumButton right"
	data-value="48"
	id="right-button-48"
	tabindex="-1"
	>
	48
	</button>
	</td>
	<td class="both content no-intraline-info right">
	<div
	class="contentText"
	data-side="right"
	id="right-content-48"
	></div>
	</td>
	</tr>
	</tbody>
	</table>
	</div>
	`,
	{
	ignoreTags: [
	'gr-context-controls-section',
	'gr-diff-section',
	'gr-diff-row',
	'gr-diff-text',
	'slot',
	],
	}
	);
	});
	});

	suite('not logged in', () => {
	setup(async () => {
	await element.updateComplete;
	});

	suite('binary diffs', () => {
	test('render binary diff', async () => {
	model.updateState({
	diff: {
	meta_a: {name: 'carrot.exe', content_type: 'binary', lines: 0},
	meta_b: {name: 'carrot.exe', content_type: 'binary', lines: 0},
	change_type: 'MODIFIED',
	intraline_status: 'OK',
	diff_header: [],
	content: [],
	binary: true,
	},
	diffPrefs: {...MINIMAL_PREFS},
	});
	await waitForEventOnce(element, 'render');

	assert.lightDom.equal(
	element,
	/* HTML */ `
	<div class="diffContainer sideBySide">
	<gr-diff-section class="left-FILE right-FILE"> </gr-diff-section>
	<gr-diff-row class="left-FILE right-FILE"> </gr-diff-row>
	<table id="diffTable">
	<colgroup>
	<col class="left" width="48" />
	<col class="left" />
	<col class="right" width="48" />
	<col class="right" />
	</colgroup>
	<tbody class="both section">
	<tr
	aria-labelledby="left-button-FILE left-content-FILE right-button-FILE right-content-FILE"
	class="diff-row side-by-side"
	left-type="both"
	right-type="both"
	tabindex="-1"
	>
	<td class="left lineNum" data-value="FILE">
	<button
	aria-label="Add file comment"
	class="left lineNumButton"
	data-value="FILE"
	id="left-button-FILE"
	tabindex="-1"
	>
	FILE
	</button>
	</td>
	<td class="both content file left no-intraline-info"></td>
	<td class="lineNum right" data-value="FILE">
	<button
	aria-label="Add file comment"
	class="lineNumButton right"
	data-value="FILE"
	id="right-button-FILE"
	tabindex="-1"
	>
	FILE
	</button>
	</td>
	<td class="both content file no-intraline-info right"></td>
	</tr>
	</tbody>
	<tbody class="binary-diff">
	<tr>
	<td colspan="4">
	<span> Difference in binary files. </span>
	</td>
	</tr>
	</tbody>
	</table>
	</div>
	`
	);
	});
	});

	suite('image diffs', () => {
	let mockFile1: ImageInfo;
	let mockFile2: ImageInfo;
	setup(() => {
	mockFile1 = {
	body:
	'Qk06AAAAAAAAADYAAAAoAAAAAQAAAP////8BACAAAAAAAAAAAAATCwAAE' +
	'wsAAAAAAAAAAAAAAAAA/w==',
	type: 'image/bmp',
	};
	mockFile2 = {
	body:
	'Qk06AAAAAAAAADYAAAAoAAAAAQAAAP////8BACAAAAAAAAAAAAATCwAAE' +
	'wsAAAAAAAAAAAAA/////w==',
	type: 'image/bmp',
	};

	element.diffPrefs = {
	context: 10,
	cursor_blink_rate: 0,
	font_size: 12,
	ignore_whitespace: 'IGNORE_NONE',
	line_length: 100,
	line_wrapping: false,
	show_line_endings: true,
	show_tabs: true,
	show_whitespace_errors: true,
	syntax_highlighting: true,
	tab_size: 8,
	};
	});

	test('render image diff', async () => {
	model.updateState({
	diff: {
	meta_a: {name: 'carrot.jpg', content_type: 'image/jpeg', lines: 66},
	meta_b: {
	name: 'carrot.jpg',
	content_type: 'image/jpeg',
	lines: 560,
	},
	intraline_status: 'OK',
	change_type: 'MODIFIED',
	diff_header: [
	'diff --git a/carrot.jpg b/carrot.jpg',
	'index 2adc47d..f9c2f2c 100644',
	'--- a/carrot.jpg',
	'+++ b/carrot.jpg',
	'Binary files differ',
	],
	content: [{skip: 66}],
	binary: true,
	},
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.SIDE_BY_SIDE},
	baseImage: mockFile1,
	revisionImage: mockFile2,
	});

	await waitForEventOnce(element, 'render');
	const imageDiffSection = queryAndAssert(element, 'tbody.image-diff');
	assert.lightDom.equal(
	imageDiffSection,
	/* HTML */ `
	<tbody class="image-diff">
	<tr>
	<td class="blank left lineNum"></td>
	<td class="left">
	<img
	class="gr-diff left"
	src="data:image/bmp;base64,${mockFile1.body}"
	/>
	</td>
	<td class="blank lineNum right"></td>
	<td class="right">
	<img
	class="gr-diff right"
	src="data:image/bmp;base64,${mockFile2.body}"
	/>
	</td>
	</tr>
	<tr>
	<td class="blank left lineNum"></td>
	<td class="left">
	<label class="gr-diff">
	<span class="gr-diff label"> 1×1 image/bmp </span>
	</label>
	</td>
	<td class="blank lineNum right"></td>
	<td class="right">
	<label class="gr-diff">
	<span class="gr-diff label"> 1×1 image/bmp </span>
	</label>
	</td>
	</tr>
	</tbody>
	`
	);
	const endpoint = queryAndAssert(element, 'tbody.endpoint');
	assert.dom.equal(
	endpoint,
	/* HTML */ `
	<tbody class="endpoint">
	<tr>
	<gr-endpoint-decorator class="gr-diff" name="image-diff">
	<gr-endpoint-param class="gr-diff" name="baseImage">
	</gr-endpoint-param>
	<gr-endpoint-param class="gr-diff" name="revisionImage">
	</gr-endpoint-param>
	</gr-endpoint-decorator>
	</tr>
	</tbody>
	`
	);
	});

	test('renders image diffs with a different file name', async () => {
	model.updateState({
	diff: {
	meta_a: {name: 'carrot.jpg', content_type: 'image/jpeg', lines: 66},
	meta_b: {
	name: 'carrot2.jpg',
	content_type: 'image/jpeg',
	lines: 560,
	},
	intraline_status: 'OK',
	change_type: 'MODIFIED',
	diff_header: [
	'diff --git a/carrot.jpg b/carrot2.jpg',
	'index 2adc47d..f9c2f2c 100644',
	'--- a/carrot.jpg',
	'+++ b/carrot2.jpg',
	'Binary files differ',
	],
	content: [{skip: 66}],
	binary: true,
	},
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.SIDE_BY_SIDE},
	baseImage: {...mockFile1, _name: 'carrot.jpg'},
	revisionImage: {...mockFile1, _name: 'carrot2.jpg'},
	});

	await waitForEventOnce(element, 'render');
	const imageDiffSection = queryAndAssert(element, 'tbody.image-diff');
	const leftLabel = queryAndAssert(imageDiffSection, 'td.left label');
	const rightLabel = queryAndAssert(imageDiffSection, 'td.right label');
	assert.dom.equal(
	leftLabel,
	/* HTML */ `
	<label class="gr-diff">
	<span class="gr-diff name"> carrot.jpg </span>
	<br class="gr-diff" />
	<span class="gr-diff label"> 1×1 image/bmp </span>
	</label>
	`
	);
	assert.dom.equal(
	rightLabel,
	/* HTML */ `
	<label class="gr-diff">
	<span class="gr-diff name"> carrot2.jpg </span>
	<br class="gr-diff" />
	<span class="gr-diff label"> 1×1 image/bmp </span>
	</label>
	`
	);
	});

	test('renders added image', async () => {
	model.updateState({
	diff: {
	meta_b: {
	name: 'carrot.jpg',
	content_type: 'image/jpeg',
	lines: 560,
	},
	intraline_status: 'OK',
	change_type: 'ADDED',
	diff_header: [
	'diff --git a/carrot.jpg b/carrot.jpg',
	'index 0000000..f9c2f2c 100644',
	'--- /dev/null',
	'+++ b/carrot.jpg',
	'Binary files differ',
	],
	content: [{skip: 66}],
	binary: true,
	},
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.SIDE_BY_SIDE},
	revisionImage: mockFile2,
	});

	await waitForEventOnce(element, 'render');
	const imageDiffSection = queryAndAssert(element, 'tbody.image-diff');
	const leftImage = query(imageDiffSection, 'td.left img');
	const rightImage = queryAndAssert(imageDiffSection, 'td.right img');
	assert.isNotOk(leftImage);
	assert.dom.equal(
	rightImage,
	/* HTML */ `
	<img
	class="gr-diff right"
	src="data:image/bmp;base64,${mockFile2.body}"
	/>
	`
	);
	});

	test('renders removed image', async () => {
	model.updateState({
	diff: {
	meta_a: {
	name: 'carrot.jpg',
	content_type: 'image/jpeg',
	lines: 560,
	},
	intraline_status: 'OK',
	change_type: 'DELETED',
	diff_header: [
	'diff --git a/carrot.jpg b/carrot.jpg',
	'index f9c2f2c..0000000 100644',
	'--- a/carrot.jpg',
	'+++ /dev/null',
	'Binary files differ',
	],
	content: [{skip: 66}],
	binary: true,
	},
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.SIDE_BY_SIDE},
	baseImage: mockFile1,
	});

	await waitForEventOnce(element, 'render');
	const imageDiffSection = queryAndAssert(element, 'tbody.image-diff');
	const leftImage = queryAndAssert(imageDiffSection, 'td.left img');
	const rightImage = query(imageDiffSection, 'td.right img');
	assert.isNotOk(rightImage);
	assert.dom.equal(
	leftImage,
	/* HTML */ `
	<img
	class="gr-diff left"
	src="data:image/bmp;base64,${mockFile1.body}"
	/>
	`
	);
	});

	test('does not render disallowed image type', async () => {
	model.updateState({
	diff: {
	meta_a: {
	name: 'carrot.jpg',
	content_type: 'image/jpeg-evil',
	lines: 560,
	},
	intraline_status: 'OK',
	change_type: 'DELETED',
	diff_header: [
	'diff --git a/carrot.jpg b/carrot.jpg',
	'index f9c2f2c..0000000 100644',
	'--- a/carrot.jpg',
	'+++ /dev/null',
	'Binary files differ',
	],
	content: [{skip: 66}],
	binary: true,
	},
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.SIDE_BY_SIDE},
	baseImage: {...mockFile1, type: 'image/jpeg-evil'},
	});

	await waitForEventOnce(element, 'render');
	const imageDiffSection = queryAndAssert(element, 'tbody.image-diff');
	const leftImage = query(imageDiffSection, 'td.left img');
	assert.isNotOk(leftImage);
	});
	});
	});

	suite('diff header', () => {
	setup(async () => {
	model.updateState({
	diff: {
	meta_a: {name: 'carrot.jpg', content_type: 'image/jpeg', lines: 66},
	meta_b: {name: 'carrot.jpg', content_type: 'image/jpeg', lines: 560},
	diff_header: [],
	intraline_status: 'OK',
	change_type: 'MODIFIED',
	content: [{skip: 66}],
	},
	diffPrefs: {...MINIMAL_PREFS},
	renderPrefs: {view_mode: DiffViewMode.SIDE_BY_SIDE},
	});
	await element.updateComplete;
	});

	test('hidden', async () => {
	assert.equal(element.computeDiffHeaderItems().length, 0);
	element.diff?.diff_header?.push('diff --git a/test.jpg b/test.jpg');
	assert.equal(element.computeDiffHeaderItems().length, 0);
	element.diff?.diff_header?.push('index 2adc47d..f9c2f2c 100644');
	assert.equal(element.computeDiffHeaderItems().length, 0);
	element.diff?.diff_header?.push('--- a/test.jpg');
	assert.equal(element.computeDiffHeaderItems().length, 0);
	element.diff?.diff_header?.push('+++ b/test.jpg');
	assert.equal(element.computeDiffHeaderItems().length, 0);
	element.diff?.diff_header?.push('test');
	assert.equal(element.computeDiffHeaderItems().length, 1);
	element.requestUpdate('diff');
	await element.updateComplete;

	const header = queryAndAssert(element, '#diffHeader');
	assert.equal(header.textContent?.trim(), 'test');
	});

	test('binary files', () => {
	element.diff!.binary = true;
	assert.equal(element.computeDiffHeaderItems().length, 0);
	element.diff?.diff_header?.push('diff --git a/test.jpg b/test.jpg');
	assert.equal(element.computeDiffHeaderItems().length, 0);
	element.diff?.diff_header?.push('test');
	assert.equal(element.computeDiffHeaderItems().length, 1);
	element.diff?.diff_header?.push('Binary files differ');
	assert.equal(element.computeDiffHeaderItems().length, 1);
	});
	});

	suite('trailing newline warnings', () => {
	const NO_NEWLINE_LEFT = 'No newline at end of left file.';
	const NO_NEWLINE_RIGHT = 'No newline at end of right file.';

	const getWarning = (element: GrDiffElement) => {
	const warningElement = query(element, '.newlineWarning');
	return warningElement?.textContent ?? '';
	};

	test('shows combined warning if both sides set to warn', async () => {
	model.updateState({
	renderPrefs: {
	show_newline_warning_left: true,
	show_newline_warning_right: true,
	},
	});
	await element.updateComplete;
	assert.include(
	getWarning(element),
	NO_NEWLINE_LEFT + ' \u2014 ' + NO_NEWLINE_RIGHT
	); // \u2014 - '—'
	});

	suite('showNewlineWarningLeft', () => {
	test('show warning if true', async () => {
	model.updateState({
	renderPrefs: {show_newline_warning_left: true},
	});
	await element.updateComplete;
	assert.include(getWarning(element), NO_NEWLINE_LEFT);
	});

	test('hide warning if false', async () => {
	model.updateState({
	renderPrefs: {show_newline_warning_left: false},
	});
	await element.updateComplete;
	assert.notInclude(getWarning(element), NO_NEWLINE_LEFT);
	});
	});

	suite('showNewlineWarningRight', () => {
	test('show warning if true', async () => {
	model.updateState({
	renderPrefs: {show_newline_warning_right: true},
	});
	await element.updateComplete;
	assert.include(getWarning(element), NO_NEWLINE_RIGHT);
	});

	test('hide warning if false', async () => {
	model.updateState({
	renderPrefs: {show_newline_warning_right: false},
	});
	await element.updateComplete;
	assert.notInclude(getWarning(element), NO_NEWLINE_RIGHT);
	});
	});
	});

	const setupSampleDiff = async function (params: {
	content: DiffContent[];
	ignore_whitespace?: IgnoreWhitespaceType;
	binary?: boolean;
	}) {
	const {ignore_whitespace, content} = params;
	// binary can't be undefined, use false if not set
	const binary = params.binary \|\| false;
	const diffPrefs = {
	ignore_whitespace: ignore_whitespace \|\| 'IGNORE_ALL',
	context: 10,
	cursor_blink_rate: 0,
	font_size: 12,

	line_length: 100,
	line_wrapping: false,
	show_line_endings: true,
	show_tabs: true,
	show_whitespace_errors: true,
	syntax_highlighting: true,
	tab_size: 8,
	};
	const diff: DiffInfo = {
	intraline_status: 'OK',
	change_type: 'MODIFIED',
	diff_header: [
	'diff --git a/carrot.js b/carrot.js',
	'index 2adc47d..f9c2f2c 100644',
	'--- a/carrot.js',
	'+++ b/carrot.jjs',
	'file differ',
	],
	content,
	binary,
	};
	model.updateState({diff, diffPrefs});
	await waitUntil(() => element.groups.length > 1);
	await element.updateComplete;
	};

	suite('whitespace changes only message', () => {
	test('show the message if ignore_whitespace is criteria matches', async () => {
	await setupSampleDiff({content: [{skip: 100}]});
	element.loading = false;
	assert.isTrue(element.showNoChangeMessage());
	});

	test('do not show the message for binary files', async () => {
	await setupSampleDiff({content: [{skip: 100}], binary: true});
	element.loading = false;
	assert.isFalse(element.showNoChangeMessage());
	});

	test('do not show the message if still loading', async () => {
	await setupSampleDiff({content: [{skip: 100}]});
	element.loading = true;
	assert.isFalse(element.showNoChangeMessage());
	});

	test('do not show the message if contains valid changes', async () => {
	const content = [
	{
	a: ['all work and no play make andybons a dull boy'],
	b: ['elgoog elgoog elgoog'],
	},
	{
	ab: [
	'Non eram nescius, Brute, cum, quae summis ingeniis ',
	'exquisitaque doctrina philosophi Graeco sermone tractavissent',
	],
	},
	];
	await setupSampleDiff({content});
	element.loading = false;
	assert.isFalse(element.showNoChangeMessage());
	});

	test('do not show message if ignore whitespace is disabled', async () => {
	const content = [
	{
	a: ['all work and no play make andybons a dull boy'],
	b: ['elgoog elgoog elgoog'],
	},
	{
	ab: [
	'Non eram nescius, Brute, cum, quae summis ingeniis ',
	'exquisitaque doctrina philosophi Graeco sermone tractavissent',
	],
	},
	];
	await setupSampleDiff({ignore_whitespace: 'IGNORE_NONE', content});
	element.loading = false;
	assert.isFalse(element.showNoChangeMessage());
	});
	});

	suite('rendering text, images and binary files', () => {
	let content: DiffContent[] = [];

	setup(() => {
	element.viewMode = DiffViewMode.SIDE_BY_SIDE;
	element.diffPrefs = {
	...DEFAULT_PREFS,
	context: -1,
	syntax_highlighting: true,
	};
	content = [
	{
	a: ['all work and no play make andybons a dull boy'],
	b: ['elgoog elgoog elgoog'],
	},
	{
	ab: [
	'Non eram nescius, Brute, cum, quae summis ingeniis ',
	'exquisitaque doctrina philosophi Graeco sermone tractavissent',
	],
	},
	];
	});

	test('text', async () => {
	model.updateState({diff: {...createEmptyDiff(), content}});
	await waitUntil(() => element.groups.length > 2);
	await element.updateComplete;
	const bodies = [...(querySelectorAll(element, 'tbody') ?? [])];
	assert.equal(bodies.length, 4);
	assert.isTrue(bodies[0].innerHTML.includes('LOST'));
	assert.isTrue(bodies[1].innerHTML.includes('FILE'));
	assert.isTrue(bodies[2].innerHTML.includes('andybons a dull boy'));
	assert.isTrue(bodies[3].innerHTML.includes('Non eram nescius'));
	});

	test('image', async () => {
	model.updateState({
	diff: {
	...createEmptyDiff(),
	content,
	binary: true,
	meta_a: {name: 'carrot1.jpg', content_type: 'image/jpeg', lines: 0},
	meta_b: {name: 'carrot2.jpg', content_type: 'image/jpeg', lines: 0},
	},
	});
	await element.updateComplete;
	const body = queryAndAssert(element, 'tbody.image-diff');
	assert.lightDom.equal(
	body,
	/* HTML */ `
	<label class="gr-diff">
	<span class="gr-diff label"> No image </span>
	</label>
	<label class="gr-diff">
	<span class="gr-diff label"> No image </span>
	</label>
	`
	);
	});

	test('binary', async () => {
	element.diff = {...createEmptyDiff(), content, binary: true};
	element.binaryDiffHint = ' Download commit to view (shortcut: d)';
	await element.updateComplete;
	const body = queryAndAssert(element, 'tbody.binary-diff');
	assert.lightDom.equal(
	body,
	/* HTML */ '<span>Difference in binary files. Download commit to view (shortcut: d)</span>'
	);
	});
	});
	});