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89 lines
2.3 KiB
89 lines
2.3 KiB
import test from 'ava';
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import Canvas from 'canvas';
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import mergeImages from '../';
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import fixtures from './fixtures';
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test('mergeImages returns empty b64 string if nothing is passed in', async t => {
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t.plan(1);
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await mergeImages([], { Canvas }).then(b64 => t.true(b64 === 'data:,'));
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});
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test('mergeImages returns correct data URI', async t => {
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t.plan(1);
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const image = await fixtures.getImage('face.png');
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const b64 = await mergeImages([image], { Canvas });
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const expectedB64 = await fixtures.getDataURI('face.png');
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t.true(b64 === expectedB64);
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});
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['png', 'jpeg'].forEach(format => {
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test(`mergeImages encodes ${format} format`, async t => {
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t.plan(1);
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const image = await fixtures.getImage('face.png');
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const b64 = await mergeImages([image], {
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format: `image/${format}`,
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Canvas
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});
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const expectedB64 = await fixtures.getDataURI(`face.${format}`);
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t.true(b64 === expectedB64);
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});
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});
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test('mergeImages correctly merges images', async t => {
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t.plan(1);
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const images = await Promise.all(['body.png', 'mouth.png', 'eyes.png'].map(image => fixtures.getImage(image)));
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const b64 = await mergeImages(images, { Canvas });
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const expectedB64 = await fixtures.getDataURI('face.png');
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t.true(b64 === expectedB64);
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});
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test('mergeImages uses custom dimensions', async t => {
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t.plan(1);
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const image = await fixtures.getImage('face.png');
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const b64 = await mergeImages([image], {
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width: 128,
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height: 128,
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Canvas
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});
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const expectedB64 = await fixtures.getDataURI('face-custom-dimension.png');
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t.true(b64 === expectedB64);
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});
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test('mergeImages uses custom positions', async t => {
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t.plan(1);
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const images = await Promise.all([
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{ src: 'body.png', x: 0, y: 0 },
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{ src: 'eyes.png', x: 32, y: 0 },
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{ src: 'mouth.png', x: 16, y: 0 }
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].map(image => fixtures.getImage(image.src).then(src => {
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image.src = src;
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return image;
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})));
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const b64 = await mergeImages(images, { Canvas });
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const expectedB64 = await fixtures.getDataURI('face-custom-positions.png');
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t.true(b64 === expectedB64);
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});
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test('mergeImages uses custom jpeg quality', async t => {
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t.plan(1);
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const image = await fixtures.getImage('face.png');
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const b64 = await mergeImages([image], {
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format: 'image/jpeg',
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quality: 0.1,
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Canvas
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});
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const expectedB64 = await fixtures.getDataURI('face-low-quality.jpeg');
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t.true(b64 === expectedB64);
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});
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