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Add withoutReduction option to resize operation (#3006)

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This commit is contained in:
Chris Banks
2021-12-12 14:10:56 -05:00
committed by GitHub
parent 3b492ea423
commit 446e4e3c3a
7 changed files with 173 additions and 1 deletions
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121
test/unit/resize.js
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@@ -357,6 +357,127 @@ describe('Resize dimensions', function () {
});
});
it('Do enlarge when input width is less than output width', function (done) {
sharp(fixtures.inputJpg)
.resize({
width: 2800,
withoutReduction: true
})
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(2800, info.width);
assert.strictEqual(2225, info.height);
done();
});
});
it('Do enlarge when input height is less than output height', function (done) {
sharp(fixtures.inputJpg)
.resize({
height: 2300,
withoutReduction: true
})
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(2725, info.width);
assert.strictEqual(2300, info.height);
done();
});
});
it('Do not crop when fit = cover and withoutReduction = true and width >= outputWidth, and height < outputHeight', function (done) {
sharp(fixtures.inputJpg)
.resize({
width: 3000,
height: 1000,
withoutReduction: true
})
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(3000, info.width);
assert.strictEqual(2225, info.height);
done();
});
});
it('Do not crop when fit = cover and withoutReduction = true and width < outputWidth, and height >= outputHeight', function (done) {
sharp(fixtures.inputJpg)
.resize({
width: 1500,
height: 2226,
withoutReduction: true
})
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(2725, info.width);
assert.strictEqual(2226, info.height);
done();
});
});
it('Do enlarge when input width is less than output width', function (done) {
sharp(fixtures.inputJpg)
.resize({
width: 2800,
withoutReduction: false
})
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(2800, info.width);
assert.strictEqual(2286, info.height);
done();
});
});
it('Do not resize when both withoutEnlargement and withoutReduction are true', function (done) {
sharp(fixtures.inputJpg)
.resize(320, 320, { fit: 'fill', withoutEnlargement: true, withoutReduction: true })
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(2725, info.width);
assert.strictEqual(2225, info.height);
done();
});
});
it('Do not reduce size when fit = outside and withoutReduction are true and height > outputHeight and width > outputWidth', function (done) {
sharp(fixtures.inputJpg)
.resize(320, 320, { fit: 'outside', withoutReduction: true })
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(2725, info.width);
assert.strictEqual(2225, info.height);
done();
});
});
it('Do resize when fit = outside and withoutReduction are true and input height > height and input width > width ', function (done) {
sharp(fixtures.inputJpg)
.resize(3000, 3000, { fit: 'outside', withoutReduction: true })
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('jpeg', info.format);
assert.strictEqual(3674, info.width);
assert.strictEqual(3000, info.height);
done();
});
});
it('fit=fill, downscale width and height', function (done) {
sharp(fixtures.inputJpg)
.resize(320, 320, { fit: 'fill' })