const sinon = require('sinon') const chai = require('chai') const { expect } = chai const modulePath = '../../../app/js/ImageOptimiser.js' const { FailedCommandError } = require('../../../app/js/Errors') const SandboxedModule = require('sandboxed-module') describe('ImageOptimiser', function() { let ImageOptimiser, SafeExec, logger const sourcePath = '/wombat/potato.eps' beforeEach(function() { SafeExec = { promises: sinon.stub().resolves() } logger = { warn: sinon.stub() } ImageOptimiser = SandboxedModule.require(modulePath, { requires: { './SafeExec': SafeExec, 'logger-sharelatex': logger } }) }) describe('compressPng', function() { it('should convert the file', function(done) { ImageOptimiser.compressPng(sourcePath, err => { expect(err).not.to.exist expect(SafeExec.promises).to.have.been.calledWith([ 'optipng', sourcePath ]) done() }) }) it('should return the error', function(done) { SafeExec.promises.rejects('wombat herding failure') ImageOptimiser.compressPng(sourcePath, err => { expect(err.toString()).to.equal('wombat herding failure') done() }) }) }) describe('when optimiser is sigkilled', function() { const expectedError = new FailedCommandError('', 'SIGKILL', '', '') let error beforeEach(function(done) { SafeExec.promises.rejects(expectedError) ImageOptimiser.compressPng(sourcePath, err => { error = err done() }) }) it('should not produce an error', function() { expect(error).not.to.exist }) it('should log a warning', function() { expect(logger.warn).to.have.been.calledOnce }) }) })