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<!DOCTYPE html>
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@license
Copyright (C) 2018 The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<title>gr-diff</title>
<script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script>
<script src="../../../bower_components/web-component-tester/browser.js"></script>
<link rel="import" href="../../../test/common-test-setup.html"/>
<link rel="import" href="gr-diff-host.html">
<script>void(0);</script>
<test-fixture id="basic">
<template>
<gr-diff-host></gr-diff-host>
</template>
</test-fixture>
<script>
suite('gr-diff-host tests', () => {
let element;
let sandbox;
setup(() => {
sandbox = sinon.sandbox.create();
element = fixture('basic');
});
teardown(() => {
sandbox.restore();
});
test('reload() cancels before network resolves', () => {
const cancelStub = sandbox.stub(element.$.diff, 'cancel');
// Stub the network calls into requests that never resolve.
sandbox.stub(element, '_getDiff', () => new Promise(() => {}));
element.reload();
assert.isTrue(cancelStub.called);
});
suite('not logged in', () => {
setup(() => {
const getLoggedInPromise = Promise.resolve(false);
stub('gr-rest-api-interface', {
getLoggedIn() { return getLoggedInPromise; },
});
element = fixture('basic');
return getLoggedInPromise;
});
test('reload() loads files weblinks', () => {
const weblinksStub = sandbox.stub(Gerrit.Nav, '_generateWeblinks')
.returns({name: 'stubb', url: '#s'});
sandbox.stub(element.$.restAPI, 'getDiff').returns(Promise.resolve({
content: [],
}));
element.projectName = 'test-project';
element.path = 'test-path';
element.commitRange = {baseCommit: 'test-base', commit: 'test-commit'};
element.patchRange = {};
return element.reload().then(() => {
assert.isTrue(weblinksStub.calledTwice);
assert.isTrue(weblinksStub.firstCall.calledWith({
commit: 'test-base',
file: 'test-path',
options: {
weblinks: undefined,
},
repo: 'test-project',
type: Gerrit.Nav.WeblinkType.FILE}));
assert.isTrue(weblinksStub.secondCall.calledWith({
commit: 'test-commit',
file: 'test-path',
options: {
weblinks: undefined,
},
repo: 'test-project',
type: Gerrit.Nav.WeblinkType.FILE}));
assert.deepEqual(element.filesWeblinks, {
meta_a: [{name: 'stubb', url: '#s'}],
meta_b: [{name: 'stubb', url: '#s'}],
});
});
});
test('_getDiff handles null diff responses', done => {
stub('gr-rest-api-interface', {
getDiff() { return Promise.resolve(null); },
});
element.changeNum = 123;
element.patchRange = {basePatchNum: 1, patchNum: 2};
element.path = 'file.txt';
element._getDiff().then(done);
});
test('reload resolves on error', () => {
const onErrStub = sandbox.stub(element, '_handleGetDiffError');
const error = {ok: false, status: 500};
sandbox.stub(element.$.restAPI, 'getDiff',
(changeNum, basePatchNum, patchNum, path, onErr) => {
onErr(error);
});
return element.reload().then(() => {
assert.isTrue(onErrStub.calledOnce);
});
});
suite('_handleGetDiffError', () => {
let serverErrorStub;
let pageErrorStub;
setup(() => {
serverErrorStub = sinon.stub();
element.addEventListener('server-error', serverErrorStub);
pageErrorStub = sinon.stub();
element.addEventListener('page-error', pageErrorStub);
});
test('page error on HTTP-409', () => {
element._handleGetDiffError({status: 409});
assert.isTrue(serverErrorStub.calledOnce);
assert.isFalse(pageErrorStub.called);
assert.isNotOk(element._errorMessage);
});
test('server error on non-HTTP-409', () => {
element._handleGetDiffError({status: 500});
assert.isFalse(serverErrorStub.called);
assert.isTrue(pageErrorStub.calledOnce);
assert.isNotOk(element._errorMessage);
});
test('error message if showLoadFailure', () => {
element.showLoadFailure = true;
element._handleGetDiffError({status: 500, statusText: 'Failure!'});
assert.isFalse(serverErrorStub.called);
assert.isFalse(pageErrorStub.called);
assert.equal(element._errorMessage,
'Encountered error when loading the diff: 500 Failure!');
});
});
suite('image diffs', () => {
let mockFile1;
let mockFile2;
setup(() => {
mockFile1 = {
body: 'Qk06AAAAAAAAADYAAAAoAAAAAQAAAP////8BACAAAAAAAAAAAAATCwAAE' +
'wsAAAAAAAAAAAAAAAAA/w==',
type: 'image/bmp',
};
mockFile2 = {
body: 'Qk06AAAAAAAAADYAAAAoAAAAAQAAAP////8BACAAAAAAAAAAAAATCwAAE' +
'wsAAAAAAAAAAAAA/////w==',
type: 'image/bmp',
};
sandbox.stub(element.$.restAPI,
'getB64FileContents',
(changeId, patchNum, path, opt_parentIndex) => {
return Promise.resolve(opt_parentIndex === 1 ? mockFile1 :
mockFile2);
});
element.patchRange = {basePatchNum: 'PARENT', patchNum: 1};
element.comments = {left: [], right: []};
});
test('renders image diffs with same file name', done => {
const mockDiff = {
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,
};
sandbox.stub(element.$.restAPI, 'getDiff')
.returns(Promise.resolve(mockDiff));
const rendered = () => {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diff.$.diffBuilder._builder, GrDiffBuilderImage);
// Left image rendered with the parent commit's version of the file.
const leftImage =
element.$.diff.$.diffTable.querySelector('td.left img');
const leftLabel =
element.$.diff.$.diffTable.querySelector('td.left label');
const leftLabelContent = leftLabel.querySelector('.label');
const leftLabelName = leftLabel.querySelector('.name');
const rightImage =
element.$.diff.$.diffTable.querySelector('td.right img');
const rightLabel = element.$.diff.$.diffTable.querySelector(
'td.right label');
const rightLabelContent = rightLabel.querySelector('.label');
const rightLabelName = rightLabel.querySelector('.name');
assert.isNotOk(rightLabelName);
assert.isNotOk(leftLabelName);
let leftLoaded = false;
let rightLoaded = false;
leftImage.addEventListener('load', () => {
assert.isOk(leftImage);
assert.equal(leftImage.getAttribute('src'),
'data:image/bmp;base64, ' + mockFile1.body);
assert.equal(leftLabelContent.textContent, '1×1 image/bmp');
leftLoaded = true;
if (rightLoaded) {
element.removeEventListener('render', rendered);
done();
}
});
rightImage.addEventListener('load', () => {
assert.isOk(rightImage);
assert.equal(rightImage.getAttribute('src'),
'data:image/bmp;base64, ' + mockFile2.body);
assert.equal(rightLabelContent.textContent, '1×1 image/bmp');
rightLoaded = true;
if (leftLoaded) {
element.removeEventListener('render', rendered);
done();
}
});
};
element.addEventListener('render', rendered);
element.$.restAPI.getDiffPreferences().then(prefs => {
element.prefs = prefs;
element.reload();
});
});
test('renders image diffs with a different file name', done => {
const mockDiff = {
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,
};
sandbox.stub(element.$.restAPI, 'getDiff')
.returns(Promise.resolve(mockDiff));
const rendered = () => {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diff.$.diffBuilder._builder, GrDiffBuilderImage);
// Left image rendered with the parent commit's version of the file.
const leftImage =
element.$.diff.$.diffTable.querySelector('td.left img');
const leftLabel =
element.$.diff.$.diffTable.querySelector('td.left label');
const leftLabelContent = leftLabel.querySelector('.label');
const leftLabelName = leftLabel.querySelector('.name');
const rightImage =
element.$.diff.$.diffTable.querySelector('td.right img');
const rightLabel = element.$.diff.$.diffTable.querySelector(
'td.right label');
const rightLabelContent = rightLabel.querySelector('.label');
const rightLabelName = rightLabel.querySelector('.name');
assert.isOk(rightLabelName);
assert.isOk(leftLabelName);
assert.equal(leftLabelName.textContent, mockDiff.meta_a.name);
assert.equal(rightLabelName.textContent, mockDiff.meta_b.name);
let leftLoaded = false;
let rightLoaded = false;
leftImage.addEventListener('load', () => {
assert.isOk(leftImage);
assert.equal(leftImage.getAttribute('src'),
'data:image/bmp;base64, ' + mockFile1.body);
assert.equal(leftLabelContent.textContent, '1×1 image/bmp');
leftLoaded = true;
if (rightLoaded) {
element.removeEventListener('render', rendered);
done();
}
});
rightImage.addEventListener('load', () => {
assert.isOk(rightImage);
assert.equal(rightImage.getAttribute('src'),
'data:image/bmp;base64, ' + mockFile2.body);
assert.equal(rightLabelContent.textContent, '1×1 image/bmp');
rightLoaded = true;
if (leftLoaded) {
element.removeEventListener('render', rendered);
done();
}
});
};
element.addEventListener('render', rendered);
element.$.restAPI.getDiffPreferences().then(prefs => {
element.prefs = prefs;
element.reload();
});
});
test('renders added image', done => {
const mockDiff = {
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,
};
sandbox.stub(element.$.restAPI, 'getDiff')
.returns(Promise.resolve(mockDiff));
element.addEventListener('render', () => {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diff.$.diffBuilder._builder, GrDiffBuilderImage);
const leftImage =
element.$.diff.$.diffTable.querySelector('td.left img');
const rightImage =
element.$.diff.$.diffTable.querySelector('td.right img');
assert.isNotOk(leftImage);
assert.isOk(rightImage);
done();
});
element.$.restAPI.getDiffPreferences().then(prefs => {
element.prefs = prefs;
element.reload();
});
});
test('renders removed image', done => {
const mockDiff = {
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,
};
sandbox.stub(element.$.restAPI, 'getDiff')
.returns(Promise.resolve(mockDiff));
element.addEventListener('render', () => {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diff.$.diffBuilder._builder, GrDiffBuilderImage);
const leftImage =
element.$.diff.$.diffTable.querySelector('td.left img');
const rightImage =
element.$.diff.$.diffTable.querySelector('td.right img');
assert.isOk(leftImage);
assert.isNotOk(rightImage);
done();
});
element.$.restAPI.getDiffPreferences().then(prefs => {
element.prefs = prefs;
element.reload();
});
});
test('does not render disallowed image type', done => {
const mockDiff = {
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,
};
mockFile1.type = 'image/jpeg-evil';
sandbox.stub(element.$.restAPI, 'getDiff')
.returns(Promise.resolve(mockDiff));
element.addEventListener('render', () => {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diff.$.diffBuilder._builder, GrDiffBuilderImage);
const leftImage =
element.$.diff.$.diffTable.querySelector('td.left img');
assert.isNotOk(leftImage);
done();
});
element.$.restAPI.getDiffPreferences().then(prefs => {
element.prefs = prefs;
element.reload();
});
});
});
});
test('delegates cancel()', () => {
const stub = sandbox.stub(element.$.diff, 'cancel');
element.reload();
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 0);
});
test('delegates getCursorStops()', () => {
const returnValue = [document.createElement('b')];
const stub = sandbox.stub(element.$.diff, 'getCursorStops')
.returns(returnValue);
assert.equal(element.getCursorStops(), returnValue);
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 0);
});
test('delegates isRangeSelected()', () => {
const returnValue = true;
const stub = sandbox.stub(element.$.diff, 'isRangeSelected')
.returns(returnValue);
assert.equal(element.isRangeSelected(), returnValue);
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 0);
});
test('delegates toggleLeftDiff()', () => {
const stub = sandbox.stub(element.$.diff, 'toggleLeftDiff');
element.toggleLeftDiff();
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 0);
});
suite('blame', () => {
setup(() => {
element = fixture('basic');
});
test('clearBlame', () => {
element._blame = [];
const setBlameSpy = sandbox.spy(element.$.diff.$.diffBuilder, 'setBlame');
element.clearBlame();
assert.isNull(element._blame);
assert.isTrue(setBlameSpy.calledWithExactly(null));
assert.equal(element.isBlameLoaded, false);
});
test('loadBlame', () => {
const mockBlame = [{id: 'commit id', ranges: [{start: 1, end: 2}]}];
const showAlertStub = sinon.stub();
element.addEventListener('show-alert', showAlertStub);
const getBlameStub = sandbox.stub(element.$.restAPI, 'getBlame')
.returns(Promise.resolve(mockBlame));
element.changeNum = 42;
element.patchRange = {patchNum: 5, basePatchNum: 4};
element.path = 'foo/bar.baz';
return element.loadBlame().then(() => {
assert.isTrue(getBlameStub.calledWithExactly(
42, 5, 'foo/bar.baz', true));
assert.isFalse(showAlertStub.called);
assert.equal(element._blame, mockBlame);
assert.equal(element.isBlameLoaded, true);
});
});
test('loadBlame empty', () => {
const mockBlame = [];
const showAlertStub = sinon.stub();
element.addEventListener('show-alert', showAlertStub);
sandbox.stub(element.$.restAPI, 'getBlame')
.returns(Promise.resolve(mockBlame));
element.changeNum = 42;
element.patchRange = {patchNum: 5, basePatchNum: 4};
element.path = 'foo/bar.baz';
return element.loadBlame()
.then(() => {
assert.isTrue(false, 'Promise should not resolve');
})
.catch(() => {
assert.isTrue(showAlertStub.calledOnce);
assert.isNull(element._blame);
assert.equal(element.isBlameLoaded, false);
});
});
});
test('delegates getThreadEls()', () => {
const returnValue = [document.createElement('b')];
const stub = sandbox.stub(element.$.diff, 'getThreadEls')
.returns(returnValue);
assert.equal(element.getThreadEls(), returnValue);
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 0);
});
test('delegates addDraftAtLine(el)', () => {
const param0 = document.createElement('b');
const stub = sandbox.stub(element.$.diff, 'addDraftAtLine');
element.addDraftAtLine(param0);
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 1);
assert.equal(stub.lastCall.args[0], param0);
});
test('delegates clearDiffContent()', () => {
const stub = sandbox.stub(element.$.diff, 'clearDiffContent');
element.clearDiffContent();
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 0);
});
test('delegates expandAllContext()', () => {
const stub = sandbox.stub(element.$.diff, 'expandAllContext');
element.expandAllContext();
assert.isTrue(stub.calledOnce);
assert.equal(stub.lastCall.args.length, 0);
});
test('passes in changeNum', () => {
const value = '12345';
element.changeNum = value;
assert.equal(element.$.diff.changeNum, value);
});
test('passes in noAutoRender', () => {
const value = true;
element.noAutoRender = value;
assert.equal(element.$.diff.noAutoRender, value);
});
test('passes in patchRange', () => {
const value = {patchNum: 'foo', basePatchNum: 'bar'};
element.patchRange = value;
assert.equal(element.$.diff.patchRange, value);
});
test('passes in path', () => {
const value = 'some/file/path';
element.path = value;
assert.equal(element.$.diff.path, value);
});
test('passes in prefs', () => {
const value = {};
element.prefs = value;
assert.equal(element.$.diff.prefs, value);
});
test('passes in projectConfig', () => {
const value = {};
element.projectConfig = value;
assert.equal(element.$.diff.projectConfig, value);
});
test('passes in changeNum', () => {
const value = '12345';
element.changeNum = value;
assert.equal(element.$.diff.changeNum, value);
});
test('passes in projectName', () => {
const value = 'Gerrit';
element.projectName = value;
assert.equal(element.$.diff.projectName, value);
});
test('passes in displayLine', () => {
const value = true;
element.displayLine = value;
assert.equal(element.$.diff.displayLine, value);
});
test('passes in commitRange', () => {
const value = {};
element.commitRange = value;
assert.equal(element.$.diff.commitRange, value);
});
test('passes in hidden', () => {
const value = true;
element.hidden = value;
assert.equal(element.$.diff.hidden, value);
assert.isNotNull(element.getAttribute('hidden'));
});
test('passes in noRenderOnPrefsChange', () => {
const value = true;
element.noRenderOnPrefsChange = value;
assert.equal(element.$.diff.noRenderOnPrefsChange, value);
});
test('passes in comments', () => {
const value = {left: [], right: []};
element.comments = value;
assert.equal(element.$.diff.comments, value);
});
test('passes in lineWrapping', () => {
const value = true;
element.lineWrapping = value;
assert.equal(element.$.diff.lineWrapping, value);
});
test('passes in viewMode', () => {
const value = 'SIDE_BY_SIDE';
element.viewMode = value;
assert.equal(element.$.diff.viewMode, value);
});
test('passes in lineOfInterest', () => {
const value = {number: 123, leftSide: true};
element.lineOfInterest = value;
assert.equal(element.$.diff.lineOfInterest, value);
});
suite('_reportDiff', () => {
let reportStub;
setup(() => {
element = fixture('basic');
element.patchRange = {basePatchNum: 1};
reportStub = sandbox.stub(element.$.reporting, 'reportInteraction');
});
test('null and content-less', () => {
element._reportDiff(null);
assert.isFalse(reportStub.called);
element._reportDiff({});
assert.isFalse(reportStub.called);
});
test('diff w/ no delta', () => {
const diff = {
content: [
{ab: ['foo', 'bar']},
{ab: ['baz', 'foo']},
],
};
element._reportDiff(diff);
assert.isTrue(reportStub.calledOnce);
assert.equal(reportStub.lastCall.args[0], 'rebase-percent-zero');
assert.isUndefined(reportStub.lastCall.args[1]);
});
test('diff w/ no rebase delta', () => {
const diff = {
content: [
{ab: ['foo', 'bar']},
{a: ['baz', 'foo']},
{ab: ['foo', 'bar']},
{a: ['baz', 'foo'], b: ['bar', 'baz']},
{ab: ['foo', 'bar']},
{b: ['baz', 'foo']},
{ab: ['foo', 'bar']},
],
};
element._reportDiff(diff);
assert.isTrue(reportStub.calledOnce);
assert.equal(reportStub.lastCall.args[0], 'rebase-percent-zero');
assert.isUndefined(reportStub.lastCall.args[1]);
});
test('diff w/ some rebase delta', () => {
const diff = {
content: [
{ab: ['foo', 'bar']},
{a: ['baz', 'foo'], due_to_rebase: true},
{ab: ['foo', 'bar']},
{a: ['baz', 'foo'], b: ['bar', 'baz']},
{ab: ['foo', 'bar']},
{b: ['baz', 'foo'], due_to_rebase: true},
{ab: ['foo', 'bar']},
{a: ['baz', 'foo']},
],
};
element._reportDiff(diff);
assert.isTrue(reportStub.calledOnce);
assert.equal(reportStub.lastCall.args[0], 'rebase-percent-nonzero');
assert.strictEqual(reportStub.lastCall.args[1], 50);
});
test('diff w/ all rebase delta', () => {
const diff = {content: [{
a: ['foo', 'bar'],
b: ['baz', 'foo'],
due_to_rebase: true,
}]};
element._reportDiff(diff);
assert.isTrue(reportStub.calledOnce);
assert.equal(reportStub.lastCall.args[0], 'rebase-percent-nonzero');
assert.strictEqual(reportStub.lastCall.args[1], 100);
});
test('diff against parent event', () => {
element.patchRange.basePatchNum = 'PARENT';
const diff = {content: [{
a: ['foo', 'bar'],
b: ['baz', 'foo'],
}]};
element._reportDiff(diff);
assert.isTrue(reportStub.calledOnce);
assert.equal(reportStub.lastCall.args[0], 'diff-against-parent');
assert.isUndefined(reportStub.lastCall.args[1]);
});
});
suite('_translateChunksToIgnore', () => {
let content;
setup(() => {
content = [
{ab: ['one', 'two']},
{a: ['three'], b: ['different three']},
{b: ['four']},
{ab: ['five', 'six']},
{a: ['seven']},
{ab: ['eight', 'nine']},
];
});
test('does nothing to unmarked diff', () => {
assert.deepEqual(element._translateChunksToIgnore({content}),
{content});
});
test('merges marked delta chunk', () => {
content[1].common = true;
assert.deepEqual(element._translateChunksToIgnore({content}), {
content: [
{ab: ['one', 'two', 'different three']},
{b: ['four']},
{ab: ['five', 'six']},
{a: ['seven']},
{ab: ['eight', 'nine']},
],
});
});
test('merges marked addition chunk', () => {
content[2].common = true;
assert.deepEqual(element._translateChunksToIgnore({content}), {
content: [
{ab: ['one', 'two']},
{a: ['three'], b: ['different three']},
{ab: ['four', 'five', 'six']},
{a: ['seven']},
{ab: ['eight', 'nine']},
],
});
});
test('merges multiple marked delta', () => {
content[1].common = true;
content[2].common = true;
assert.deepEqual(element._translateChunksToIgnore({content}), {
content: [
{ab: ['one', 'two', 'different three', 'four', 'five', 'six']},
{a: ['seven']},
{ab: ['eight', 'nine']},
],
});
});
test('marked deletion chunks are omitted', () => {
content[4].common = true;
assert.deepEqual(element._translateChunksToIgnore({content}), {
content: [
{ab: ['one', 'two']},
{a: ['three'], b: ['different three']},
{b: ['four']},
{ab: ['five', 'six', 'eight', 'nine']},
],
});
});
test('marked deltas can start shared chunks', () => {
content[0] = {a: ['one'], b: ['two'], common: true};
assert.deepEqual(element._translateChunksToIgnore({content}), {
content: [
{ab: ['two']},
{a: ['three'], b: ['different three']},
{b: ['four']},
{ab: ['five', 'six']},
{a: ['seven']},
{ab: ['eight', 'nine']},
],
});
});
});
});
</script>