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55021376b5
This would have prevented https://github.com/resin-io/etcher/pull/1278 from happening. Signed-off-by: Juan Cruz Viotti <jviotti@openmailbox.org>
88 lines
2.6 KiB
JavaScript
88 lines
2.6 KiB
JavaScript
/*
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* Copyright 2016 resin.io
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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'use strict';
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const m = require('mochainon');
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const _ = require('lodash');
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const Bluebird = require('bluebird');
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const fileExists = require('file-exists');
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const fs = Bluebird.promisifyAll(require('fs'));
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const tmp = require('tmp');
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const imageStream = require('../../lib/image-stream/index');
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const doFilesContainTheSameData = (file1, file2) => {
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return Bluebird.props({
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file1: fs.readFileAsync(file1),
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file2: fs.readFileAsync(file2)
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}).then(function(data) {
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return _.isEqual(data.file1, data.file2);
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});
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};
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const deleteIfExists = (file) => {
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return Bluebird.try(function() {
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if (fileExists(file)) {
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return fs.unlinkAsync(file);
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}
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return Bluebird.resolve();
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});
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};
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exports.expectError = function(file, errorMessage) {
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it('should be rejected with an error', function() {
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return imageStream.getFromFilePath(file).catch((error) => {
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m.chai.expect(error).to.be.an.instanceof(Error);
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m.chai.expect(error.message).to.equal(errorMessage);
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m.chai.expect(error.description).to.be.a.string;
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m.chai.expect(error.description.length > 0).to.be.true;
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});
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});
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};
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exports.extractFromFilePath = function(file, image) {
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it('should be able to extract the image', function() {
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const output = tmp.tmpNameSync();
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return imageStream.getFromFilePath(file).then(function(results) {
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m.chai.expect(results.path).to.equal(file);
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if (!_.some([
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results.size.original === fs.statSync(file).size,
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results.size.original === fs.statSync(image).size
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])) {
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throw new Error(`Invalid size: ${results.size.original}`);
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}
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const stream = results.stream
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.pipe(results.transform)
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.pipe(fs.createWriteStream(output));
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return new Bluebird((resolve, reject) => {
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stream.on('error', reject);
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stream.on('close', resolve);
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});
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}).then(function() {
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return doFilesContainTheSameData(image, output);
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}).then(function(areEqual) {
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m.chai.expect(areEqual).to.be.true;
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}).finally(function() {
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return deleteIfExists(output);
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});
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});
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};
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