/* eslint-env mocha */ 'use strict' var assert = require('assert') var fs = require('fs') var path = require('path') var gifsicle = require('imagemin-gifsicle') var svgo = require('imagemin-svgo') var run = require('./run-webpack') var fixtureGif = fs.readFileSync(path.resolve(__dirname, './fixture.gif')) var fixtureSvg = fs.readFileSync(path.resolve(__dirname, './fixture.svg')) describe('img-loader', () => { it('passes the img though unchanged by default', function () { return run('./fixture.gif').then(function (image) { assert(image.equals(fixtureGif), 'gif should be unchanged') }) }) it('can apply optimizations for gif', function () { return run('./fixture.gif', { plugins: [ gifsicle({}) ] }).then(function (image) { assert(!image.equals(fixtureGif), 'gif should be changed') assert(image.length < fixtureGif.length, 'optimized gif should be smaller') }) }) it('can apply optimizations for svg', function () { return run('./fixture.svg', { plugins: [ svgo({}) ] }).then(function (image) { assert(!image.equals(fixtureSvg), 'svg should be changed') assert(image.length < fixtureSvg.length, 'optimized svg should be smaller') assert.strictEqual(image.toString('utf8'), '') }) }) it('can use a function for plugins', function () { var context return run('./fixture.svg', { plugins: function (ctx) { context = ctx return [ svgo({}) ] } }).then(function (image) { assert.strictEqual(path.basename(context.resourcePath), 'fixture.svg') assert(image.length < fixtureSvg.length, 'optimized svg should be smaller') }) }) })