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Ensure extractChannel sets bw colourspace interp #1257

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Lovell Fuller
2018-06-19 22:47:52 +01:00
parent da0b0348a2
commit 94607b585a
4 changed files with 22 additions and 1 deletions
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test/fixtures/expected/extract-lch.jpg vendored Normal file
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15
test/unit/extractChannel.js
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@@ -54,6 +54,21 @@ describe('Image channel extraction', function () {
});
});
it('With colorspace conversion', function (done) {
const output = fixtures.path('output.extract-lch.jpg');
sharp(fixtures.inputJpg)
.toColourspace('lch')
.extractChannel(1)
.resize(320, 240)
.toFile(output, function (err, info) {
if (err) throw err;
assert.strictEqual(320, info.width);
assert.strictEqual(240, info.height);
fixtures.assertMaxColourDistance(output, fixtures.expected('extract-lch.jpg'));
done();
});
});
it('Invalid channel number', function () {
assert.throws(function () {
sharp(fixtures.inputJpg)