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Recreate golden with this before each test #41

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merged 5 commits into from
Jun 26, 2023
Merged

Recreate golden with this before each test #41

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f62aa1a
Recreate golden with this before each test
bearfriend Jun 24, 2023
715c04e
Remove unnecessary closure
bearfriend Jun 24, 2023
8c05f29
Clean up command opts
bearfriend Jun 24, 2023
5b6b6a8
Put test and elem in this
bearfriend Jun 24, 2023
3c1776b
Avoid setting assertion method multiple times
bearfriend Jun 26, 2023
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19 changes: 15 additions & 4 deletions src/browser/vdiff.js
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Original file line number Diff line number Diff line change
@@ -1,11 +1,22 @@
import { chai, expect } from '@open-wc/testing';
import { executeServerCommand } from '@web/test-runner-commands';

chai.Assertion.addMethod('golden', ScreenshotAndCompare);
let test;

async function ScreenshotAndCompare(name, opts) {
const elem = this._obj;
const rect = elem.getBoundingClientRect();
chai.Assertion.addMethod('golden', function(...args) {
return ScreenshotAndCompare.call({ test, elem: this._obj }, ...args); // eslint-disable-line no-invalid-this
});
mocha.setup({ // eslint-disable-line no-undef
rootHooks: {
beforeEach() {
test = this.currentTest;
}
}
});

async function ScreenshotAndCompare(opts) {
const name = this.test.fullTitle();
const rect = this.elem.getBoundingClientRect();
const { pass, message } = await executeServerCommand('brightspace-visual-diff', { name, rect, opts });
if (!pass) {
expect.fail(message);
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3 changes: 1 addition & 2 deletions src/server/visual-diff-plugin.js
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Original file line number Diff line number Diff line change
Expand Up @@ -129,8 +129,7 @@ export function visualDiff({ updateGoldens = false, runSubset = false } = {}) {
}
}

const opts = payload.opts || {};
opts.margin = opts.margin || DEFAULT_MARGIN;
const opts = { margin: DEFAULT_MARGIN, ...payload.opts };

const page = session.browser.getPage(session.id);
await page.screenshot({
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8 changes: 4 additions & 4 deletions test/browser/element.vdiff.js
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Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,10 @@ describe('element-matches', () => {
{ name: 'rtl', rtl: true },
{ name: 'transition', action: elem => elem.style.opacity = '0.2' }
].forEach(({ name, rtl, action }) => {
it(name, async function() {
it(name, async() => {
const elem = await fixture(`<${elementTag} text="Visual Difference"></${elementTag}>`, { rtl: rtl });
if (action) await action(elem);
await expect(elem).to.be.golden(this.test.fullTitle());
await expect(elem).to.be.golden();
});
});
});
Expand All @@ -65,7 +65,7 @@ describe('element-different', () => {
elem.style.height = '70px';
} }*/
].forEach(({ name, action }) => {
it(name, async function() {
it(name, async() => {
const elem = await fixture(`<${elementTag} text="Visual Difference"></${elementTag}>`);
const isGolden = await executeServerCommand('vdiff-get-golden-flag');
if (!isGolden) {
Expand All @@ -75,7 +75,7 @@ describe('element-different', () => {

let fail = false;
try {
await expect(elem).to.be.golden(this.test.fullTitle());
await expect(elem).to.be.golden();
} catch (ex) {
fail = true;
}
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