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Puppeteer E2E test: Show actual and difference screenshots #25410

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merged 4 commits into from
Feb 6, 2023
Merged

Puppeteer E2E test: Show actual and difference screenshots #25410

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3c3d609
Puppeteer: Show actual and diff screenshots
LeviPesin Feb 2, 2023
e14dc62
Semicolons
LeviPesin Feb 2, 2023
818e0ac
Merge branch 'dev' into puppeteer-show-actual-screenshots
LeviPesin Feb 3, 2023
2848da0
Fix warning
LeviPesin Feb 3, 2023
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6 changes: 6 additions & 0 deletions .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,12 @@ jobs:

- name: === E2E testing ===
run: npm run test-e2e
- name: Upload output screenshots
uses: actions/upload-artifact@v3
with:
name: Output screenshots
path: test/e2e/output-screenshots
if-no-files-found: ignore

e2e-cov:
name: "Examples ready for release"
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1 change: 1 addition & 0 deletions .gitignore
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Expand Up @@ -13,5 +13,6 @@ test/treeshake/index.bundle.min.js
test/treeshake/index-src.bundle.min.js
test/treeshake/stats.html
test/e2e/chromium
test/e2e/output-screenshots

**/node_modules
13 changes: 12 additions & 1 deletion test/e2e/puppeteer.js
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Expand Up @@ -89,6 +89,11 @@ process.on( 'SIGINT', () => close() );

async function main() {

/* Create output directories */

try { await fs.rm( 'test/e2e/output-screenshots', { recursive: true, force: true } ); } catch {}
try { await fs.mkdir( 'test/e2e/output-screenshots' ); } catch {}

/* Find files */

const isMakeScreenshot = process.argv[ 2 ] === '--make';
Expand Down Expand Up @@ -438,10 +443,11 @@ async function makeAttempt( page, failedScreenshots, cleanPage, isMakeScreenshot

try {

expected = await jimp.read( `examples/screenshots/${ file }.jpg` );
expected = ( await jimp.read( `examples/screenshots/${ file }.jpg` ) ).quality( jpgQuality );

} catch {

await screenshot.writeAsync( `test/e2e/output-screenshots/${ file }-actual.jpg` );
throw new Error( `Screenshot does not exist: ${ file }` );

}
Expand All @@ -460,6 +466,8 @@ async function makeAttempt( page, failedScreenshots, cleanPage, isMakeScreenshot

} catch {

await screenshot.writeAsync( `test/e2e/output-screenshots/${ file }-actual.jpg` );
await expected.writeAsync( `test/e2e/output-screenshots/${ file }-expected.jpg` );
throw new Error( `Image sizes does not match in file: ${ file }` );

}
Expand All @@ -476,6 +484,9 @@ async function makeAttempt( page, failedScreenshots, cleanPage, isMakeScreenshot

} else {

await screenshot.writeAsync( `test/e2e/output-screenshots/${ file }-actual.jpg` );
await expected.writeAsync( `test/e2e/output-screenshots/${ file }-expected.jpg` );
await diff.writeAsync( `test/e2e/output-screenshots/${ file }-diff.jpg` );
throw new Error( `Diff wrong in ${ differentPixels.toFixed( 1 ) }% of pixels in file: ${ file }` );

}
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