horizon/horizon/static/framework/util/file/file-reader.service.spec.js

55 lines
1.7 KiB
JavaScript

/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
(function() {
'use strict';
describe('fileReader service', function() {
var $scope, fileReader;
beforeEach(module('horizon.framework.util.file'));
beforeEach(inject(function($injector) {
fileReader = $injector.get('horizon.framework.util.file.file-reader');
$scope = $injector.get('$rootScope');
}));
it('should return a promise that resolves to a string', function(done) {
var fileReaderStub = {};
var arrayBuffer = str2ab('file contents');
fileReaderStub.readAsArrayBuffer = function() {};
var filePromise = fileReader.readTextFile('file', fileReaderStub);
filePromise.then(function(contents) {
expect(contents).toEqual('file contents');
done();
});
fileReaderStub.onloadend({
target: {
result: arrayBuffer
}
});
$scope.$apply();
});
});
function str2ab(str) {
var buf = new ArrayBuffer(str.length); // 2 bytes for each char
var bufView = new Uint8Array(buf);
for (var i = 0, strLen = str.length; i < strLen; i++) {
bufView[i] = str.charCodeAt(i);
}
return buf;
}
})();