blob: 42f098bd7e926c094347a7c2b563f5b2a638ab89 [file] [log] [blame]
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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"/>
<script src="../../../scripts/util.js"></script>
<link rel="import" href="../../shared/gr-rest-api-interface/mock-diff-response_test.html">
<link rel="import" href="gr-diff.html">
<script>void(0);</script>
<test-fixture id="basic">
<template>
<gr-diff></gr-diff>
</template>
</test-fixture>
<script>
suite('gr-diff tests', () => {
let element;
let sandbox;
const MINIMAL_PREFS = {tab_size: 2, line_length: 80};
setup(() => {
sandbox = sinon.sandbox.create();
});
teardown(() => {
sandbox.restore();
});
suite('selectionchange event handling', () => {
const emulateSelection = function() {
document.dispatchEvent(new CustomEvent('selectionchange'));
};
setup(() => {
element = fixture('basic');
sandbox.stub(element.$.highlights, 'handleSelectionChange');
});
test('enabled if logged in', () => {
element.loggedIn = true;
emulateSelection();
assert.isTrue(element.$.highlights.handleSelectionChange.called);
});
test('ignored if logged out', () => {
element.loggedIn = false;
emulateSelection();
assert.isFalse(element.$.highlights.handleSelectionChange.called);
});
});
test('cancel', () => {
element = fixture('basic');
const cancelStub = sandbox.stub(element.$.diffBuilder, 'cancel');
element.cancel();
assert.isTrue(cancelStub.calledOnce);
});
test('line limit with line_wrapping', () => {
element = fixture('basic');
element.prefs = Object.assign({}, MINIMAL_PREFS, {line_wrapping: true});
flushAsynchronousOperations();
assert.equal(element.customStyle['--line-limit'], '80ch');
});
test('line limit without line_wrapping', () => {
element = fixture('basic');
element.prefs = Object.assign({}, MINIMAL_PREFS, {line_wrapping: false});
flushAsynchronousOperations();
assert.isNotOk(element.customStyle['--line-limit']);
});
suite('_get{PatchNum|IsParentComment}ByLineAndContent', () => {
let lineEl;
let contentEl;
setup(() => {
element = fixture('basic');
lineEl = document.createElement('td');
contentEl = document.createElement('span');
});
suite('_getPatchNumByLineAndContent', () => {
test('right side', () => {
element.patchRange = {patchNum: 4, basePatchNum: 'PARENT'};
lineEl.classList.add('right');
assert.equal(element._getPatchNumByLineAndContent(lineEl, contentEl),
4);
});
test('left side parent by linenum', () => {
element.patchRange = {patchNum: 4, basePatchNum: 'PARENT'};
lineEl.classList.add('left');
assert.equal(element._getPatchNumByLineAndContent(lineEl, contentEl),
4);
});
test('left side parent by content', () => {
element.patchRange = {patchNum: 4, basePatchNum: 'PARENT'};
contentEl.classList.add('remove');
assert.equal(element._getPatchNumByLineAndContent(lineEl, contentEl),
4);
});
test('left side merge parent', () => {
element.patchRange = {patchNum: 4, basePatchNum: -2};
contentEl.classList.add('remove');
assert.equal(element._getPatchNumByLineAndContent(lineEl, contentEl),
4);
});
test('left side non parent', () => {
element.patchRange = {patchNum: 4, basePatchNum: 3};
contentEl.classList.add('remove');
assert.equal(element._getPatchNumByLineAndContent(lineEl, contentEl),
3);
});
});
suite('_getIsParentCommentByLineAndContent', () => {
test('right side', () => {
element.patchRange = {patchNum: 4, basePatchNum: 'PARENT'};
lineEl.classList.add('right');
assert.isFalse(
element._getIsParentCommentByLineAndContent(lineEl, contentEl));
});
test('left side parent by linenum', () => {
element.patchRange = {patchNum: 4, basePatchNum: 'PARENT'};
lineEl.classList.add('left');
assert.isTrue(
element._getIsParentCommentByLineAndContent(lineEl, contentEl));
});
test('left side parent by content', () => {
element.patchRange = {patchNum: 4, basePatchNum: 'PARENT'};
contentEl.classList.add('remove');
assert.isTrue(
element._getIsParentCommentByLineAndContent(lineEl, contentEl));
});
test('left side merge parent', () => {
element.patchRange = {patchNum: 4, basePatchNum: -2};
contentEl.classList.add('remove');
assert.isTrue(
element._getIsParentCommentByLineAndContent(lineEl, contentEl));
});
test('left side non parent', () => {
element.patchRange = {patchNum: 4, basePatchNum: 3};
contentEl.classList.add('remove');
assert.isFalse(
element._getIsParentCommentByLineAndContent(lineEl, contentEl));
});
});
});
suite('not logged in', () => {
setup(() => {
const getLoggedInPromise = Promise.resolve(false);
stub('gr-rest-api-interface', {
getLoggedIn() { return getLoggedInPromise; },
});
element = fixture('basic');
return getLoggedInPromise;
});
test('toggleLeftDiff', () => {
element.toggleLeftDiff();
assert.isTrue(element.classList.contains('no-left'));
element.toggleLeftDiff();
assert.isFalse(element.classList.contains('no-left'));
});
test('addDraftAtLine', () => {
sandbox.stub(element, '_selectLine');
const loggedInErrorSpy = sandbox.spy();
element.addEventListener('show-auth-required', loggedInErrorSpy);
element.addDraftAtLine();
assert.isTrue(loggedInErrorSpy.called);
});
test('view does not start with displayLine classList', () => {
assert.isFalse(
element.$$('.diffContainer').classList.contains('displayLine'));
});
test('displayLine class added called when displayLine is true', () => {
const spy = sandbox.spy(element, '_computeContainerClass');
element.displayLine = true;
assert.isTrue(spy.called);
assert.isTrue(
element.$$('.diffContainer').classList.contains('displayLine'));
});
test('thread groups', () => {
const contentEl = document.createElement('div');
element.changeNum = 123;
element.patchRange = {basePatchNum: 1, patchNum: 2};
element.path = 'file.txt';
const mock = document.createElement('mock-diff-response');
element.$.diffBuilder._builder = element.$.diffBuilder._getDiffBuilder(
mock.diffResponse, Object.assign({}, MINIMAL_PREFS));
// No thread groups.
assert.isNotOk(element._getThreadGroupForLine(contentEl));
// A thread group gets created.
const threadGroupEl = element._getOrCreateThreadGroup(contentEl);
assert.isOk(threadGroupEl);
// The new thread group can be fetched.
assert.isOk(element._getThreadGroupForLine(contentEl));
assert.equal(contentEl.querySelectorAll('.thread-group').length, 1);
});
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',
};
element.patchRange = {basePatchNum: 'PARENT', patchNum: 1};
element.isImageDiff = true;
element.prefs = {
auto_hide_diff_table_header: true,
context: 10,
cursor_blink_rate: 0,
font_size: 12,
ignore_whitespace: 'IGNORE_NONE',
intraline_difference: true,
line_length: 100,
line_wrapping: false,
show_line_endings: true,
show_tabs: true,
show_whitespace_errors: true,
syntax_highlighting: true,
tab_size: 8,
theme: 'DEFAULT',
};
});
test('renders image diffs with same file name', done => {
const rendered = () => {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diffBuilder._builder, GrDiffBuilderImage);
// Left image rendered with the parent commit's version of the file.
const leftImage = element.$.diffTable.querySelector('td.left img');
const leftLabel =
element.$.diffTable.querySelector('td.left label');
const leftLabelContent = leftLabel.querySelector('.label');
const leftLabelName = leftLabel.querySelector('.name');
const rightImage =
element.$.diffTable.querySelector('td.right img');
const rightLabel = element.$.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.baseImage = mockFile1;
element.revisionImage = mockFile2;
element.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,
};
});
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,
};
const rendered = () => {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diffBuilder._builder, GrDiffBuilderImage);
// Left image rendered with the parent commit's version of the file.
const leftImage = element.$.diffTable.querySelector('td.left img');
const leftLabel =
element.$.diffTable.querySelector('td.left label');
const leftLabelContent = leftLabel.querySelector('.label');
const leftLabelName = leftLabel.querySelector('.name');
const rightImage =
element.$.diffTable.querySelector('td.right img');
const rightLabel = element.$.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.baseImage = mockFile1;
element.baseImage._name = mockDiff.meta_a.name;
element.revisionImage = mockFile2;
element.revisionImage._name = mockDiff.meta_b.name;
element.diff = mockDiff;
});
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,
};
function rendered() {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diffBuilder._builder, GrDiffBuilderImage);
const leftImage = element.$.diffTable.querySelector('td.left img');
const rightImage = element.$.diffTable.querySelector('td.right img');
assert.isNotOk(leftImage);
assert.isOk(rightImage);
done();
element.removeEventListener('render', rendered);
}
element.addEventListener('render', rendered);
element.revisionImage = mockFile2;
element.diff = mockDiff;
});
test('renders removed image', done => {
const mockDiff = {
meta_a: {name: 'carrot.jpg', content_type: 'image/jpeg',
lines: 560},
intraline_status: 'OK',
change_type: 'DELETED',
diff_header: [
'diff --git a/carrot.jpg b/carrot.jpg',
'index f9c2f2c..0000000 100644',
'--- a/carrot.jpg',
'+++ /dev/null',
'Binary files differ',
],
content: [{skip: 66}],
binary: true,
};
function rendered() {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diffBuilder._builder, GrDiffBuilderImage);
const leftImage = element.$.diffTable.querySelector('td.left img');
const rightImage = element.$.diffTable.querySelector('td.right img');
assert.isOk(leftImage);
assert.isNotOk(rightImage);
done();
element.removeEventListener('render', rendered);
}
element.addEventListener('render', rendered);
element.baseImage = mockFile1;
element.diff = mockDiff;
});
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';
function rendered() {
// Recognizes that it should be an image diff.
assert.isTrue(element.isImageDiff);
assert.instanceOf(
element.$.diffBuilder._builder, GrDiffBuilderImage);
const leftImage = element.$.diffTable.querySelector('td.left img');
assert.isNotOk(leftImage);
done();
element.removeEventListener('render', rendered);
}
element.addEventListener('render', rendered);
element.baseImage = mockFile1;
element.diff = mockDiff;
});
});
test('_handleTap lineNum', done => {
const addDraftStub = sandbox.stub(element, 'addDraftAtLine');
const el = document.createElement('div');
el.className = 'lineNum';
el.addEventListener('click', e => {
element._handleTap(e);
assert.isTrue(addDraftStub.called);
assert.equal(addDraftStub.lastCall.args[0], el);
done();
});
el.click();
});
test('_handleTap context', done => {
const showContextStub =
sandbox.stub(element.$.diffBuilder, 'showContext');
const el = document.createElement('div');
el.className = 'showContext';
el.addEventListener('click', e => {
element._handleTap(e);
assert.isTrue(showContextStub.called);
done();
});
el.click();
});
test('_handleTap content', done => {
const content = document.createElement('div');
const lineEl = document.createElement('div');
const selectStub = sandbox.stub(element, '_selectLine');
sandbox.stub(element.$.diffBuilder, 'getLineElByChild', () => lineEl);
content.className = 'content';
content.addEventListener('click', e => {
element._handleTap(e);
assert.isTrue(selectStub.called);
assert.equal(selectStub.lastCall.args[0], lineEl);
done();
});
content.click();
});
suite('getCursorStops', () => {
const setupDiff = function() {
const mock = document.createElement('mock-diff-response');
element.diff = mock.diffResponse;
element.prefs = {
context: 10,
tab_size: 8,
font_size: 12,
line_length: 100,
cursor_blink_rate: 0,
line_wrapping: false,
intraline_difference: true,
show_line_endings: true,
show_tabs: true,
show_whitespace_errors: true,
syntax_highlighting: true,
auto_hide_diff_table_header: true,
theme: 'DEFAULT',
ignore_whitespace: 'IGNORE_NONE',
};
element._renderDiffTable();
flushAsynchronousOperations();
};
test('getCursorStops returns [] when hidden and noAutoRender', () => {
element.noAutoRender = true;
setupDiff();
element.hidden = true;
assert.equal(element.getCursorStops().length, 0);
});
test('getCursorStops', () => {
setupDiff();
assert.equal(element.getCursorStops().length, 50);
});
});
test('adds .hiddenscroll', () => {
Gerrit.hiddenscroll = true;
element.displayLine = true;
assert.include(element.$$('.diffContainer').className, 'hiddenscroll');
});
});
suite('logged in', () => {
let fakeLineEl;
setup(() => {
element = fixture('basic');
element.loggedIn = true;
element.patchRange = {};
fakeLineEl = {
getAttribute: sandbox.stub().returns(42),
classList: {
contains: sandbox.stub().returns(true),
},
};
});
test('addDraftAtLine', () => {
sandbox.stub(element, '_selectLine');
sandbox.stub(element, '_createComment');
element.addDraftAtLine(fakeLineEl);
assert.isTrue(element._createComment
.calledWithExactly(fakeLineEl, 42));
});
test('addDraftAtLine on an edit', () => {
element.patchRange.basePatchNum = element.EDIT_NAME;
sandbox.stub(element, '_selectLine');
sandbox.stub(element, '_createComment');
const alertSpy = sandbox.spy();
element.addEventListener('show-alert', alertSpy);
element.addDraftAtLine(fakeLineEl);
assert.isTrue(alertSpy.called);
assert.isFalse(element._createComment.called);
});
test('addDraftAtLine on an edit base', () => {
element.patchRange.patchNum = element.EDIT_NAME;
element.patchRange.basePatchNum = element.PARENT_NAME;
sandbox.stub(element, '_selectLine');
sandbox.stub(element, '_createComment');
const alertSpy = sandbox.spy();
element.addEventListener('show-alert', alertSpy);
element.addDraftAtLine(fakeLineEl);
assert.isTrue(alertSpy.called);
assert.isFalse(element._createComment.called);
});
suite('change in preferences', () => {
setup(() => {
element.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}],
};
element.flushDebouncer('renderDiffTable');
});
test('change in preferences re-renders diff', () => {
sandbox.stub(element, '_renderDiffTable');
element.prefs = Object.assign(
{}, MINIMAL_PREFS, {time_format: 'HHMM_12'});
element.flushDebouncer('renderDiffTable');
assert.isTrue(element._renderDiffTable.called);
});
test('change in preferences does not re-renders diff with ' +
'noRenderOnPrefsChange', () => {
sandbox.stub(element, '_renderDiffTable');
element.noRenderOnPrefsChange = true;
element.prefs = Object.assign(
{}, MINIMAL_PREFS, {time_format: 'HHMM_12'});
element.flushDebouncer('renderDiffTable');
assert.isFalse(element._renderDiffTable.called);
});
});
});
suite('diff header', () => {
setup(() => {
element = fixture('basic');
element.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}],
};
});
test('hidden', () => {
assert.equal(element._diffHeaderItems.length, 0);
element.push('diff.diff_header', 'diff --git a/test.jpg b/test.jpg');
assert.equal(element._diffHeaderItems.length, 0);
element.push('diff.diff_header', 'index 2adc47d..f9c2f2c 100644');
assert.equal(element._diffHeaderItems.length, 0);
element.push('diff.diff_header', '--- a/test.jpg');
assert.equal(element._diffHeaderItems.length, 0);
element.push('diff.diff_header', '+++ b/test.jpg');
assert.equal(element._diffHeaderItems.length, 0);
element.push('diff.diff_header', 'test');
assert.equal(element._diffHeaderItems.length, 1);
flushAsynchronousOperations();
assert.equal(element.$.diffHeader.textContent.trim(), 'test');
});
test('binary files', () => {
element.diff.binary = true;
assert.equal(element._diffHeaderItems.length, 0);
element.push('diff.diff_header', 'diff --git a/test.jpg b/test.jpg');
assert.equal(element._diffHeaderItems.length, 0);
element.push('diff.diff_header', 'test');
assert.equal(element._diffHeaderItems.length, 1);
element.push('diff.diff_header', 'Binary files differ');
assert.equal(element._diffHeaderItems.length, 1);
});
});
suite('safety and bypass', () => {
let renderStub;
setup(() => {
element = fixture('basic');
renderStub = sandbox.stub(element.$.diffBuilder, 'render',
() => {
Promise.resolve();
element.$.diffBuilder.dispatchEvent(
new CustomEvent('render', {bubbles: true}));
});
const mock = document.createElement('mock-diff-response');
sandbox.stub(element.$.diffBuilder, 'getDiffLength').returns(10000);
element.diff = mock.diffResponse;
element.noRenderOnPrefsChange = true;
});
test('large render w/ context = 10', done => {
element.prefs = Object.assign({}, MINIMAL_PREFS, {context: 10});
function rendered() {
assert.isTrue(renderStub.called);
assert.isFalse(element._showWarning);
done();
element.removeEventListener('render', rendered);
}
element.addEventListener('render', rendered);
element._renderDiffTable();
});
test('large render w/ whole file and bypass', done => {
element.prefs = Object.assign({}, MINIMAL_PREFS, {context: -1});
element._safetyBypass = 10;
function rendered() {
assert.isTrue(renderStub.called);
assert.isFalse(element._showWarning);
done();
element.removeEventListener('render', rendered);
}
element.addEventListener('render', rendered);
element._renderDiffTable();
});
test('large render w/ whole file and no bypass', done => {
element.prefs = Object.assign({}, MINIMAL_PREFS, {context: -1});
function rendered() {
assert.isFalse(renderStub.called);
assert.isTrue(element._showWarning);
done();
element.removeEventListener('render', rendered);
}
element.addEventListener('render', rendered);
element._renderDiffTable();
});
});
suite('blame', () => {
setup(() => {
element = fixture('basic');
});
test('unsetting', () => {
element.blame = [];
const setBlameSpy = sandbox.spy(element.$.diffBuilder, 'setBlame');
element.classList.add('showBlame');
element.blame = null;
assert.isTrue(setBlameSpy.calledWithExactly(null));
assert.isFalse(element.classList.contains('showBlame'));
});
test('setting', () => {
const mockBlame = [{id: 'commit id', ranges: [{start: 1, end: 2}]}];
element.blame = mockBlame;
assert.isTrue(element.classList.contains('showBlame'));
});
});
suite('trailing newlines', () => {
setup(() => {
element = fixture('basic');
});
suite('_lastChunkForSide', () => {
test('deltas', () => {
const diff = {content: [
{a: ['foo', 'bar'], b: ['baz']},
{ab: ['foo', 'bar', 'baz']},
{b: ['foo']},
]};
assert.equal(element._lastChunkForSide(diff, false), diff.content[2]);
assert.equal(element._lastChunkForSide(diff, true), diff.content[1]);
diff.content.push({a: ['foo'], b: ['bar']});
assert.equal(element._lastChunkForSide(diff, false), diff.content[3]);
assert.equal(element._lastChunkForSide(diff, true), diff.content[3]);
});
test('addition', () => {
const diff = {content: [
{b: ['foo', 'bar', 'baz']},
]};
assert.equal(element._lastChunkForSide(diff, false), diff.content[0]);
assert.isNull(element._lastChunkForSide(diff, true));
});
test('deletion', () => {
const diff = {content: [
{a: ['foo', 'bar', 'baz']},
]};
assert.isNull(element._lastChunkForSide(diff, false));
assert.equal(element._lastChunkForSide(diff, true), diff.content[0]);
});
test('empty', () => {
const diff = {content: []};
assert.isNull(element._lastChunkForSide(diff, false));
assert.isNull(element._lastChunkForSide(diff, true));
});
});
suite('_hasTrailingNewlines', () => {
test('shared no trailing', () => {
const diff = undefined;
sandbox.stub(element, '_lastChunkForSide')
.returns({ab: ['foo', 'bar']});
assert.isFalse(element._hasTrailingNewlines(diff, false));
assert.isFalse(element._hasTrailingNewlines(diff, true));
});
test('delta trailing in right', () => {
const diff = undefined;
sandbox.stub(element, '_lastChunkForSide')
.returns({a: ['foo', 'bar'], b: ['baz', '']});
assert.isTrue(element._hasTrailingNewlines(diff, false));
assert.isFalse(element._hasTrailingNewlines(diff, true));
});
test('addition', () => {
const diff = undefined;
sandbox.stub(element, '_lastChunkForSide', (diff, leftSide) => {
if (leftSide) { return null; }
return {b: ['foo', '']};
});
assert.isTrue(element._hasTrailingNewlines(diff, false));
assert.isNull(element._hasTrailingNewlines(diff, true));
});
test('deletion', () => {
const diff = undefined;
sandbox.stub(element, '_lastChunkForSide', (diff, leftSide) => {
if (!leftSide) { return null; }
return {a: ['foo']};
});
assert.isNull(element._hasTrailingNewlines(diff, false));
assert.isFalse(element._hasTrailingNewlines(diff, true));
});
});
test('_computeNewlineWarning', () => {
const NO_NEWLINE_BASE = 'No newline at end of base file.';
const NO_NEWLINE_REVISION = 'No newline at end of revision file.';
let hasLeft;
let hasRight;
sandbox.stub(element, '_hasTrailingNewlines', (diff, left) => {
if (left) { return hasLeft; }
return hasRight;
});
const diff = undefined;
// The revision has a trailing newline, but the base doesn't.
hasLeft = true;
hasRight = false;
assert.equal(element._computeNewlineWarning(diff), NO_NEWLINE_REVISION);
// Trailing newlines were undetermined in the revision.
hasLeft = true;
hasRight = null;
assert.isNull(element._computeNewlineWarning(diff));
// Missing trailing newlines in the base.
hasLeft = false;
hasRight = null;
assert.equal(element._computeNewlineWarning(diff), NO_NEWLINE_BASE);
// Missing trailing newlines in both.
hasLeft = false;
hasRight = false;
assert.equal(element._computeNewlineWarning(diff),
NO_NEWLINE_BASE + ' — ' + NO_NEWLINE_REVISION);
});
test('_computeNewlineWarningClass', () => {
const hidden = 'newlineWarning hidden';
const shown = 'newlineWarning';
assert.equal(element._computeNewlineWarningClass(null, true), hidden);
assert.equal(element._computeNewlineWarningClass('foo', true), hidden);
assert.equal(element._computeNewlineWarningClass(null, false), hidden);
assert.equal(element._computeNewlineWarningClass('foo', false), shown);
});
});
suite('key locations', () => {
let renderStub;
setup(() => {
element = fixture('basic');
element.prefs = {};
renderStub = sandbox.stub(element.$.diffBuilder, 'render')
.returns(new Promise(() => {}));
});
test('lineOfInterest is a key location', () => {
element.lineOfInterest = {number: 789, leftSide: true};
element._renderDiffTable();
assert.isTrue(renderStub.called);
assert.deepEqual(renderStub.lastCall.args[0], {
left: {789: true},
right: {},
});
});
test('line comments are key locations', () => {
const threadEl = document.createElement('div');
threadEl.className = 'comment-thread';
threadEl.setAttribute('comment-side', 'right');
threadEl.setAttribute('line-num', 3);
Polymer.dom(element).appendChild(threadEl);
Polymer.dom.flush();
element._renderDiffTable();
assert.isTrue(renderStub.called);
assert.deepEqual(renderStub.lastCall.args[0], {
left: {},
right: {3: true},
});
});
test('file comments are key locations', () => {
const threadEl = document.createElement('div');
threadEl.className = 'comment-thread';
threadEl.setAttribute('comment-side', 'left');
Polymer.dom(element).appendChild(threadEl);
Polymer.dom.flush();
element._renderDiffTable();
assert.isTrue(renderStub.called);
assert.deepEqual(renderStub.lastCall.args[0], {
left: {FILE: true},
right: {},
});
});
});
});
a11ySuite('basic');
</script>