Ghost/ghost/image-transform/test/transform.test.js
Fabien O'Carroll 010d787046 🐛 Fixed responsive images for gifs & svgs (#10315)
closes #10301

* Redirected to original image for gifs & svgs

* Created canTransformFileExtension method

* Updated image middlewares to use canTransformFileExtension
2020-03-25 14:48:41 +00:00

131 lines
4.5 KiB
JavaScript

const should = require('should');
const sinon = require('sinon');
const fs = require('fs-extra');
const common = require('../../../../server/lib/common');
const manipulator = require('../../../../server/lib/image/manipulator');
const testUtils = require('../../../utils');
const sandbox = sinon.sandbox.create();
describe('lib/image: manipulator', function () {
afterEach(function () {
sandbox.restore();
testUtils.unmockNotExistingModule();
});
describe('canTransformFileExtension', function () {
it('returns false for ".gif"', function () {
should.equal(
manipulator.canTransformFileExtension('.gif'),
false
);
});
it('returns false for ".svg"', function () {
should.equal(
manipulator.canTransformFileExtension('.svg'),
false
);
});
it('returns false for ".svgz"', function () {
should.equal(
manipulator.canTransformFileExtension('.svgz'),
false
);
});
});
describe('cases', function () {
let sharp, sharpInstance;
beforeEach(function () {
sandbox.stub(fs, 'readFile').resolves('original');
sandbox.stub(fs, 'writeFile').resolves();
sharpInstance = {
resize: sandbox.stub().returnsThis(),
rotate: sandbox.stub().returnsThis(),
toBuffer: sandbox.stub(),
};
sharp = sandbox.stub().callsFake(() => {
return sharpInstance;
});
testUtils.mockNotExistingModule('sharp', sharp);
});
it('resize image', function () {
sharpInstance.toBuffer.resolves('manipulated');
return manipulator.process({width: 1000})
.then(() => {
sharpInstance.resize.calledOnce.should.be.true();
sharpInstance.rotate.calledOnce.should.be.true();
fs.writeFile.calledOnce.should.be.true();
fs.writeFile.calledWith('manipulated');
});
});
it('skip resizing if image is too small', function () {
sharpInstance.toBuffer.resolves('manipulated');
return manipulator.process({width: 1000})
.then(() => {
sharpInstance.resize.calledOnce.should.be.true();
should.deepEqual(sharpInstance.resize.args[0][2], {
withoutEnlargement: true
});
fs.writeFile.calledOnce.should.be.true();
fs.writeFile.calledWith('manipulated');
});
});
it('uses original image as an output when the size (bytes) is bigger after manipulation', function () {
sharpInstance.toBuffer.resolves('manipulated to a very very very very very very very large size');
return manipulator.process({width: 1000})
.then(() => {
sharpInstance.resize.calledOnce.should.be.true();
sharpInstance.rotate.calledOnce.should.be.true();
sharpInstance.toBuffer.calledOnce.should.be.true();
fs.writeFile.calledOnce.should.be.true();
fs.writeFile.calledWith('original');
});
});
it('sharp throws error during processing', function () {
sharpInstance.toBuffer.resolves('manipulated');
fs.writeFile.rejects(new Error('whoops'));
return manipulator.process({width: 2000})
.then(() => {
'1'.should.eql(1, 'Expected to fail');
})
.catch((err) => {
(err instanceof common.errors.InternalServerError).should.be.true;
err.code.should.eql('IMAGE_PROCESSING');
});
});
});
describe('installation', function () {
beforeEach(function () {
testUtils.mockNotExistingModule('sharp', new Error(), true);
});
it('sharp was not installed', function () {
return manipulator.process()
.then(() => {
'1'.should.eql(1, 'Expected to fail');
})
.catch((err) => {
(err instanceof common.errors.InternalServerError).should.be.true();
err.code.should.eql('SHARP_INSTALLATION');
});
});
});
});