mirror of
https://github.com/lovell/sharp.git
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840 lines
29 KiB
JavaScript
840 lines
29 KiB
JavaScript
/*!
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Copyright 2013 Lovell Fuller and others.
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SPDX-License-Identifier: Apache-2.0
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*/
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const { describe, it } = require('node:test');
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const assert = require('node:assert');
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const sharp = require('../../');
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const fixtures = require('../fixtures');
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describe('Resize fit=contain', () => {
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it('Allows specifying the position as a string', (_t, done) => {
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sharp(fixtures.inputJpg)
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.resize(320, 240, {
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fit: 'contain',
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position: 'center'
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})
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.png()
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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fixtures.assertSimilar(fixtures.expected('embed-3-into-3.png'), data, done);
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});
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});
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it('JPEG within PNG, no alpha channel', (_t, done) => {
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sharp(fixtures.inputJpg)
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.resize(320, 240, { fit: 'contain' })
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.png()
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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assert.strictEqual(3, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-3-into-3.png'), data, done);
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});
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});
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it('JPEG within WebP, to include alpha channel', (_t, done) => {
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sharp(fixtures.inputJpg)
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.resize(320, 240, {
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fit: 'contain',
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background: { r: 0, g: 0, b: 0, alpha: 0 }
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})
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.webp()
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('webp', info.format);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-3-into-4.webp'), data, done);
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});
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});
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it('PNG with alpha channel', (_t, done) => {
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sharp(fixtures.inputPngWithTransparency)
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.resize(50, 50, { fit: 'contain' })
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(50, info.width);
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assert.strictEqual(50, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-4-into-4.png'), data, done);
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});
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});
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it('16-bit PNG with alpha channel', (_t, done) => {
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sharp(fixtures.inputPngWithTransparency16bit)
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.resize(32, 16, { fit: 'contain' })
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(32, info.width);
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assert.strictEqual(16, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-16bit.png'), data, done);
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});
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});
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it('16-bit PNG with alpha channel onto RGBA', (_t, done) => {
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sharp(fixtures.inputPngWithTransparency16bit)
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.resize(32, 16, {
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fit: 'contain',
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background: { r: 0, g: 0, b: 0, alpha: 0 }
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(32, info.width);
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assert.strictEqual(16, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-16bit-rgba.png'), data, done);
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});
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});
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it('PNG with 2 channels', (_t, done) => {
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sharp(fixtures.inputPngWithGreyAlpha)
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.resize(32, 16, {
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fit: 'contain',
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background: { r: 0, g: 0, b: 0, alpha: 0 }
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(32, info.width);
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assert.strictEqual(16, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-2channel.png'), data, done);
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});
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});
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it('TIFF in LAB colourspace onto RGBA background', (_t, done) => {
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sharp(fixtures.inputTiffCielab)
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.resize(64, 128, {
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fit: 'contain',
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background: { r: 255, g: 102, b: 0, alpha: 0.5 }
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})
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.png()
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(64, info.width);
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assert.strictEqual(128, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-lab-into-rgba.png'), data, done);
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});
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});
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it('Enlarge', (_t, done) => {
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sharp(fixtures.inputPngWithOneColor)
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.resize(320, 240, { fit: 'contain' })
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240, info.height);
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assert.strictEqual(3, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-enlarge.png'), data, done);
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});
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});
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describe('Animated WebP', () => {
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it('Width only', (_t, done) => {
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sharp(fixtures.inputWebPAnimated, { pages: -1 })
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.resize(320, 240, {
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fit: 'contain',
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background: { r: 255, g: 0, b: 0 }
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('webp', info.format);
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assert.strictEqual(320, info.width);
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assert.strictEqual(240 * 9, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-animated-width.webp'), data, done);
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});
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});
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it('Height only', (_t, done) => {
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sharp(fixtures.inputWebPAnimated, { pages: -1 })
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.resize(240, 320, {
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fit: 'contain',
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background: { r: 255, g: 0, b: 0 }
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('webp', info.format);
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assert.strictEqual(240, info.width);
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assert.strictEqual(320 * 9, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('embed-animated-height.webp'), data, done);
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});
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});
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});
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it('Invalid position values should fail', () => {
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[-1, 8.1, 9, 1000000, false, 'vallejo'].forEach((position) => {
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assert.throws(() => {
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sharp().resize(null, null, { fit: 'contain', position });
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});
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});
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});
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it('Position horizontal top', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'top'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a2-n.png'), data, done);
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});
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});
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it('Position horizontal right top', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'right top'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a3-ne.png'), data, done);
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});
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});
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it('Position horizontal right', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'right'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a4-e.png'), data, done);
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});
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});
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it('Position horizontal right bottom', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'right bottom'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a5-se.png'), data, done);
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});
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});
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it('Position horizontal bottom', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'bottom'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a6-s.png'), data, done);
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});
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});
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it('Position horizontal left bottom', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'left bottom'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a7-sw.png'), data, done);
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});
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});
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it('Position horizontal left', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'left'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a8-w.png'), data, done);
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});
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});
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it('Position horizontal left top', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: 'left top'
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a1-nw.png'), data, done);
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});
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});
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it('Position horizontal north', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: sharp.gravity.north
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a2-n.png'), data, done);
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});
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});
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it('Position horizontal northeast', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: sharp.gravity.northeast
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a3-ne.png'), data, done);
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});
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});
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it('Position horizontal east', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: sharp.gravity.east
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a4-e.png'), data, done);
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});
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});
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it('Position horizontal southeast', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: sharp.gravity.southeast
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a5-se.png'), data, done);
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});
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});
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it('Position horizontal south', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: sharp.gravity.south
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a6-s.png'), data, done);
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});
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});
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it('Position horizontal southwest', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: sharp.gravity.southwest
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a7-sw.png'), data, done);
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});
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});
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it('Position horizontal west', (_t, done) => {
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sharp(fixtures.inputPngEmbed)
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.resize(200, 100, {
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fit: sharp.fit.contain,
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background: { r: 0, g: 0, b: 0, alpha: 0 },
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position: sharp.gravity.west
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})
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.toBuffer((err, data, info) => {
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if (err) throw err;
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assert.strictEqual(true, data.length > 0);
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assert.strictEqual('png', info.format);
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assert.strictEqual(200, info.width);
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assert.strictEqual(100, info.height);
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assert.strictEqual(4, info.channels);
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fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a8-w.png'), data, done);
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});
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});
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it('Position horizontal northwest', (_t, done) => {
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|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 100, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.northwest
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(100, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a1-nw.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position horizontal center', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 100, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.center
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(100, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/a9-c.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical top', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'top'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/2-n.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical right top', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'right top'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/3-ne.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical right', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'right'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/4-e.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical right bottom', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'right bottom'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/5-se.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical bottom', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'bottom'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/6-s.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical left bottom', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'left bottom'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/7-sw.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical left', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'left'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/8-w.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical left top', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: 'left top'
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/1-nw.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical north', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.north
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/2-n.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical northeast', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.northeast
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/3-ne.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical east', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.east
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/4-e.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical southeast', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.southeast
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/5-se.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical south', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.south
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/6-s.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical southwest', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.southwest
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/7-sw.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical west', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.west
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/8-w.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical northwest', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.northwest
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/1-nw.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('Position vertical center', (_t, done) => {
|
|
sharp(fixtures.inputPngEmbed)
|
|
.resize(200, 200, {
|
|
fit: sharp.fit.contain,
|
|
background: { r: 0, g: 0, b: 0, alpha: 0 },
|
|
position: sharp.gravity.center
|
|
})
|
|
.toBuffer((err, data, info) => {
|
|
if (err) throw err;
|
|
assert.strictEqual(true, data.length > 0);
|
|
assert.strictEqual('png', info.format);
|
|
assert.strictEqual(200, info.width);
|
|
assert.strictEqual(200, info.height);
|
|
assert.strictEqual(4, info.channels);
|
|
fixtures.assertSimilar(fixtures.expected('./embedgravitybird/9-c.png'), data, done);
|
|
});
|
|
});
|
|
|
|
it('multiple alpha channels', async () => {
|
|
const create = {
|
|
width: 20,
|
|
height: 12,
|
|
channels: 4,
|
|
background: 'green'
|
|
};
|
|
const multipleAlphaChannels = await sharp({ create })
|
|
.joinChannel({ create })
|
|
.tiff({ compression: 'deflate' })
|
|
.toBuffer();
|
|
|
|
const data = await sharp(multipleAlphaChannels)
|
|
.resize({
|
|
width: 8,
|
|
height: 8,
|
|
fit: 'contain',
|
|
background: 'blue'
|
|
})
|
|
.tiff({ compression: 'deflate' })
|
|
.toBuffer();
|
|
const { format, width, height, space, channels } = await sharp(data).metadata();
|
|
assert.deepStrictEqual(format, 'tiff');
|
|
assert.deepStrictEqual(width, 8);
|
|
assert.deepStrictEqual(height, 8);
|
|
assert.deepStrictEqual(space, 'srgb');
|
|
assert.deepStrictEqual(channels, 8);
|
|
});
|
|
});
|