mirror of
https://github.com/microsoft/playwright.git
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92 lines
3.5 KiB
TypeScript
92 lines
3.5 KiB
TypeScript
/**
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* Copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { test, expect } from '../playwright-test/stable-test-runner';
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import { PNG } from 'playwright-core/lib/utilsBundle';
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import { compare } from 'playwright-core/lib/image_tools/compare';
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import fs from 'fs';
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import path from 'path';
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function listFixtures(root: string, fixtures: Set<string> = new Set()) {
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for (const item of fs.readdirSync(root, { withFileTypes: true })) {
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const p = path.join(root, item.name);
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if (item.isDirectory())
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listFixtures(p, fixtures);
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else if (item.isFile() && p.endsWith('-actual.png'))
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fixtures.add(p.substring(0, p.length - '-actual.png'.length));
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}
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return fixtures;
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}
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const FIXTURES_DIR = path.join(__dirname, 'fixtures');
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function declareFixtureTest(fixtureRoot: string, fixtureName: string, shouldMatch: boolean) {
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test(path.relative(fixtureRoot, fixtureName), async ({}, testInfo) => {
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const [actual, expected] = await Promise.all([
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fs.promises.readFile(fixtureName + '-actual.png'),
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fs.promises.readFile(fixtureName + '-expected.png'),
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]);
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await testInfo.attach(fixtureName + '-actual.png', {
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body: actual,
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contentType: 'image/png',
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});
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await testInfo.attach(fixtureName + '-expected.png', {
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body: expected,
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contentType: 'image/png',
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});
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const actualPNG = PNG.sync.read(actual);
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const expectedPNG = PNG.sync.read(expected);
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expect(actualPNG.width).toBe(expectedPNG.width);
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expect(actualPNG.height).toBe(expectedPNG.height);
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const diffPNG = new PNG({ width: actualPNG.width, height: actualPNG.height });
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const diffCount = compare(actualPNG.data, expectedPNG.data, diffPNG.data, actualPNG.width, actualPNG.height, {
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maxColorDeltaE94: 1.0,
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});
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await testInfo.attach(fixtureName + '-diff.png', {
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body: PNG.sync.write(diffPNG),
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contentType: 'image/png',
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});
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if (shouldMatch)
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expect(diffCount).toBe(0);
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else
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expect(diffCount).not.toBe(0);
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});
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}
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test.describe('basic fixtures', () => {
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test.describe.configure({ mode: 'parallel' });
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for (const fixtureName of listFixtures(path.join(FIXTURES_DIR, 'should-match')))
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declareFixtureTest(FIXTURES_DIR, fixtureName, true /* shouldMatch */);
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for (const fixtureName of listFixtures(path.join(FIXTURES_DIR, 'should-fail')))
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declareFixtureTest(FIXTURES_DIR, fixtureName, false /* shouldMatch */);
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});
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const customImageToolsFixtures = process.env.IMAGE_TOOLS_FIXTURES;
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if (customImageToolsFixtures) {
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test.describe('custom fixtures', () => {
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test.describe.configure({ mode: 'parallel' });
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for (const fixtureName of listFixtures(path.join(customImageToolsFixtures, 'should-match')))
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declareFixtureTest(customImageToolsFixtures, fixtureName, true /* shouldMatch */);
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for (const fixtureName of listFixtures(path.join(customImageToolsFixtures, 'should-fail')))
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declareFixtureTest(customImageToolsFixtures, fixtureName, false /* shouldMatch */);
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});
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}
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