mirror of
https://github.com/lovell/sharp.git
synced 2025-07-09 18:40:16 +02:00
366 lines
12 KiB
JavaScript
366 lines
12 KiB
JavaScript
'use strict';
|
|
|
|
const assert = require('assert');
|
|
|
|
const sharp = require('../../');
|
|
const fixtures = require('../fixtures');
|
|
|
|
describe('Rotation', function () {
|
|
['Landscape', 'Portrait'].forEach(function (orientation) {
|
|
[1, 2, 3, 4, 5, 6, 7, 8].forEach(function (exifTag) {
|
|
it('Input image has Orientation EXIF tag value of (' + exifTag + '), auto-rotate', function (done) {
|
|
sharp(fixtures['inputJpgWith' + orientation + 'Exif' + exifTag])
|
|
.rotate()
|
|
.resize(320)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(orientation === 'Landscape' ? 240 : 427, info.height);
|
|
fixtures.assertSimilar(fixtures.expected(orientation + '_' + exifTag + '-out.jpg'), data, done);
|
|
});
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Rotate by 30 degrees with semi-transparent background', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.rotate(30, { background: { r: 255, g: 0, b: 0, alpha: 0.5 } })
|
|
.resize(320)
|
|
.png()
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(408, info.width);
|
|
assert.strictEqual(386, info.height);
|
|
fixtures.assertSimilar(fixtures.expected('rotate-transparent-bg.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Rotate by 30 degrees with solid background', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.rotate(30, { background: { r: 255, g: 0, b: 0, alpha: 0.5 } })
|
|
.resize(320)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(408, info.width);
|
|
assert.strictEqual(386, info.height);
|
|
fixtures.assertSimilar(fixtures.expected('rotate-solid-bg.jpg'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Rotate by 90 degrees, respecting output input size', function (done) {
|
|
sharp(fixtures.inputJpg).rotate(90).resize(320, 240).toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
done();
|
|
});
|
|
});
|
|
|
|
it('Rotate by 30 degrees, respecting output input size', function (done) {
|
|
sharp(fixtures.inputJpg).rotate(30).resize(320, 240).toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(397, info.width);
|
|
assert.strictEqual(368, info.height);
|
|
done();
|
|
});
|
|
});
|
|
|
|
[-3690, -450, -90, 90, 450, 3690].forEach(function (angle) {
|
|
it('Rotate by any 90-multiple angle (' + angle + 'deg)', function (done) {
|
|
sharp(fixtures.inputJpg320x240).rotate(angle).toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(240, info.width);
|
|
assert.strictEqual(320, info.height);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
[-3750, -510, -150, 30, 390, 3630].forEach(function (angle) {
|
|
it('Rotate by any 30-multiple angle (' + angle + 'deg)', function (done) {
|
|
sharp(fixtures.inputJpg320x240).rotate(angle).toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(397, info.width);
|
|
assert.strictEqual(368, info.height);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
[-3780, -540, 0, 180, 540, 3780].forEach(function (angle) {
|
|
it('Rotate by any 180-multiple angle (' + angle + 'deg)', function (done) {
|
|
sharp(fixtures.inputJpg320x240).rotate(angle).toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Rotate by 270 degrees, square output ignoring aspect ratio', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(240, 240, { fit: sharp.fit.fill })
|
|
.rotate(270)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(240, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(240, metadata.width);
|
|
assert.strictEqual(240, metadata.height);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Rotate by 315 degrees, square output ignoring aspect ratio', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(240, 240, { fit: sharp.fit.fill })
|
|
.rotate(315)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(339, info.width);
|
|
assert.strictEqual(339, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(339, metadata.width);
|
|
assert.strictEqual(339, metadata.height);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Rotate by 270 degrees, rectangular output ignoring aspect ratio', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(320, 240, { fit: sharp.fit.fill })
|
|
.rotate(270)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(320, metadata.width);
|
|
assert.strictEqual(240, metadata.height);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Rotate by 30 degrees, rectangular output ignoring aspect ratio', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(320, 240, { fit: sharp.fit.fill })
|
|
.rotate(30)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(397, info.width);
|
|
assert.strictEqual(368, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(397, metadata.width);
|
|
assert.strictEqual(368, metadata.height);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Input image has Orientation EXIF tag but do not rotate output', function (done) {
|
|
sharp(fixtures.inputJpgWithExif)
|
|
.resize(320)
|
|
.withMetadata()
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(427, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(8, metadata.orientation);
|
|
done();
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Input image has Orientation EXIF tag value of 8 (270 degrees), auto-rotate', function (done) {
|
|
sharp(fixtures.inputJpgWithExif)
|
|
.rotate()
|
|
.resize(320)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
fixtures.assertSimilar(fixtures.expected('exif-8.jpg'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Override EXIF Orientation tag metadata after auto-rotate', function (done) {
|
|
sharp(fixtures.inputJpgWithExif)
|
|
.rotate()
|
|
.resize(320)
|
|
.withMetadata({ orientation: 3 })
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(3, metadata.orientation);
|
|
fixtures.assertSimilar(fixtures.expected('exif-8.jpg'), data, done);
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Input image has Orientation EXIF tag value of 5 (270 degrees + flip), auto-rotate', function (done) {
|
|
sharp(fixtures.inputJpgWithExifMirroring)
|
|
.rotate()
|
|
.resize(320)
|
|
.withMetadata()
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(1, metadata.orientation);
|
|
fixtures.assertSimilar(fixtures.expected('exif-5.jpg'), data, done);
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Attempt to auto-rotate using image that has no EXIF', function (done) {
|
|
sharp(fixtures.inputJpg).rotate().resize(320).toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(261, info.height);
|
|
done();
|
|
});
|
|
});
|
|
|
|
it('Attempt to auto-rotate image format without EXIF support', function (done) {
|
|
sharp(fixtures.inputPng)
|
|
.rotate()
|
|
.resize(320)
|
|
.jpeg()
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(236, info.height);
|
|
done();
|
|
});
|
|
});
|
|
|
|
it('Rotate with a string argument, should fail', function () {
|
|
assert.throws(function () {
|
|
sharp(fixtures.inputJpg).rotate('not-a-number');
|
|
});
|
|
});
|
|
|
|
it('Flip - vertical', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(320)
|
|
.flip()
|
|
.withMetadata()
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(261, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(1, metadata.orientation);
|
|
fixtures.assertSimilar(fixtures.expected('flip.jpg'), data, done);
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Flop - horizontal', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(320)
|
|
.flop()
|
|
.withMetadata()
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(261, info.height);
|
|
sharp(data).metadata(function (err, metadata) {
|
|
if (err) throw err;
|
|
assert.strictEqual(1, metadata.orientation);
|
|
fixtures.assertSimilar(fixtures.expected('flop.jpg'), data, done);
|
|
});
|
|
});
|
|
});
|
|
|
|
it('Flip and flop', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(320)
|
|
.flop()
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(261, info.height);
|
|
fixtures.assertSimilar(fixtures.expected('flip-and-flop.jpg'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Neither flip nor flop', function (done) {
|
|
sharp(fixtures.inputJpg)
|
|
.resize(320)
|
|
.flip(false)
|
|
.flop(false)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(261, info.height);
|
|
fixtures.assertSimilar(fixtures.inputJpg, data, done);
|
|
});
|
|
});
|
|
|
|
it('Auto-rotate and flip', function (done) {
|
|
sharp(fixtures.inputJpgWithExif)
|
|
.rotate()
|
|
.flip()
|
|
.resize(320)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
fixtures.assertSimilar(fixtures.expected('rotate-and-flip.jpg'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Auto-rotate and flop', function (done) {
|
|
sharp(fixtures.inputJpgWithExif)
|
|
.rotate()
|
|
.flop()
|
|
.resize(320)
|
|
.toBuffer(function (err, data, info) {
|
|
if (err) throw err;
|
|
assert.strictEqual('jpeg', info.format);
|
|
assert.strictEqual(320, info.width);
|
|
assert.strictEqual(240, info.height);
|
|
fixtures.assertSimilar(fixtures.expected('rotate-and-flop.jpg'), data, done);
|
|
});
|
|
});
|
|
});
|