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Ensure clone takes deep copy of options #4029

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Lovell Fuller
2024-03-17 09:42:21 +00:00
parent c5f318ed4d
commit 7bc74feb11
3 changed files with 30 additions and 2 deletions
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22
test/unit/clone.js
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@@ -77,4 +77,26 @@ describe('Clone', function () {
assert.strictEqual(0, original.listenerCount('finish'));
assert.strictEqual(0, clone.listenerCount('finish'));
});
it('Ensure deep clone of properties, including arrays', async () => {
const alpha = await sharp({
create: { width: 320, height: 240, channels: 3, background: 'red' }
}).toColourspace('b-w').png().toBuffer();
const original = sharp();
const joiner = original.clone().joinChannel(alpha);
const negater = original.clone().negate();
fs.createReadStream(fixtures.inputJpg320x240).pipe(original);
const joined = await joiner.png({ effort: 1 }).toBuffer();
const negated = await negater.png({ effort: 1 }).toBuffer();
const joinedMetadata = await sharp(joined).metadata();
assert.strictEqual(joinedMetadata.channels, 4);
assert.strictEqual(joinedMetadata.hasAlpha, true);
const negatedMetadata = await sharp(negated).metadata();
assert.strictEqual(negatedMetadata.channels, 3);
assert.strictEqual(negatedMetadata.hasAlpha, false);
});
});