my-idlers/node_modules/img-loader/__tests__/index.spec.js

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/* 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'), '<svg/>')
})
})
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')
})
})
})