Initial checkin
This commit is contained in:
Chris Tavares
Коммит
4fa9389fdf
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projects/*
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targets/*
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# Visual Studio #
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*.suo
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*.user
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# Node #
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test/recordings/
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node_modules/
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npm-debug.log
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azure_error
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checkstyle-result.xml
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test-result.xml
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# Mac OS #
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.DS_Store
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.DS_Store?
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# Windows #
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Thumbs.db
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# WebStorm #
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.idea/
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/**
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* Copyright (c) Microsoft. All rights reserved.
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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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* 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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function Config(parent) {
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var environments = { };
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var settings = { };
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function config(envName) {
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if (!envName) {
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return config;
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}
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if (!environments[envName]) {
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environments[envName] = new Config(config);
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}
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return environments[envName];
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}
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config.configure = function (env, callback) {
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if (arguments.length === 1) {
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env(this);
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} else {
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callback(this(env));
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}
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};
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config.set = function (setting, value) {
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settings[setting] = value;
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return this;
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};
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config.get = function (setting) {
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if (!settings.hasOwnProperty(setting)) {
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if (parent) {
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return parent.get(setting);
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}
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return undefined;
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}
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return settings[setting];
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};
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config.has = function (setting) {
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return settings.hasOwnProperty(setting) || (!!parent && parent.has(setting));
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}
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Object.defineProperties(config, {
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default: {
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get: function () {
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return config(process.env.NODE_ENV);
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},
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enumerable: true
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},
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environments: {
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get: function () {
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return Object.keys(environments);
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}
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},
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settings: {
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get: function () {
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var s = {};
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Object.keys(settings).forEach(function (setting) {
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s[setting] = 1;
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});
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if (parent) {
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parent.settings.forEach(function (setting) {
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s[setting] = 1;
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});
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}
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return Object.keys(s);
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}
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}
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});
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return config;
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}
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module.exports = Config;
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{
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"name": "azure-config",
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"version": "0.0.1",
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"description": "a module to encapsulate express-style programmatic configuration",
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"main": "index.js",
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"licenses": [ { "type": "Apache 2.0", "url": "http://www.apache.org/licenses/LICENSE-2.0" } ],
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"devDependencies": {
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"mocha": "~1.9.0",
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"should": "~1.2.2"
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},
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"scripts": {
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"test": "mocha -R spec"
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}
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}
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/**
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* Copyright (c) Microsoft. All rights reserved.
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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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* 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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var should = require('should');
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var Config = require('../index');
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describe('Config', function () {
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it('should be creatable by new', function () {
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var c = new Config();
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should.exist(c);
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});
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it('should return a unique object for named environments', function () {
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var c = new Config();
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var dev = c('dev');
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var prod = c('prod');
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should.exist(dev);
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should.exist(prod);
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dev.should.not.equal(prod);
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});
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it('should return itself if invoked without environment', function () {
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var c = new Config();
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c().should.equal(c);
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});
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it('should return same object for same environment', function () {
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var c = new Config();
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var d1 = c('dev');
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var d2 = c('dev');
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d1.should.equal(d2);
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});
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it('should store settings by name', function () {
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var c = new Config();
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c.configure(function (c) {
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c.set('settingOne', 'aValue');
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c.set('secondSetting', 37);
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});
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c.get('settingOne').should.equal('aValue');
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c.get('secondSetting').should.equal(37);
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});
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it('should store settings in environments', function () {
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var c = new Config();
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c.configure('dev', function (c) {
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c.set('settingOne', 'devOne');
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c.set('secondSetting', 37);
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});
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c.configure('prod', function (c) {
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c.set('settingOne', 'prodOne');
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c.set('secondSetting', 42);
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});
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c('dev').get('settingOne').should.equal('devOne');
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c('prod').get('settingOne').should.equal('prodOne');
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should.not.exist(c.get('settingOne'));
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c('dev').get('secondSetting').should.equal(37);
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c('prod').get('secondSetting').should.equal(42);
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should.not.exist(c.get('secondSetting'));
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});
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it('should set values in subenvironments', function () {
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var c = new Config();
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c.configure('dev', function (c) {
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c.configure('dev2', function (c) {
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c.set('settingOne', 'dev2Setting');
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});
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c.configure('dev3', function (c) {
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c.set('settingOne', 'dev3Setting');
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});
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c.set('settingOne', 'devSetting');
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});
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should.not.exist(c.get('settingOne'));
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c('dev').get('settingOne').should.equal('devSetting');
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c('dev')('dev2').get('settingOne').should.equal('dev2Setting');
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c('dev')('dev3').get('settingOne').should.equal('dev3Setting');
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});
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it('should look up parent configs to find setting', function () {
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var c = new Config();
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c.configure(function (c) {
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c.set('settingOne', 'defaultValue');
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c.configure('dev', function (c) {
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c.set('settingTwo', 'devValue');
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});
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});
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c('dev').get('settingTwo').should.equal('devValue');
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c('dev').get('settingOne').should.equal('defaultValue');
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should.not.exist(c('dev').get('settingThree'));
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});
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});
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describe('Config and environment', function () {
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var c;
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var originalEnv;
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beforeEach(function () {
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originalEnv = process.env.NODE_ENV;
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c = new Config();
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c.configure(function (c) {
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c.set('settingOne', 'fromRoot')
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.set('settingTwo', 'fromRoot')
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.set('settingThree', 'fromRoot');
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});
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c.configure('dev', function (c) {
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c.set('settingTwo', 'fromDev');
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c.set('devOnly', 'fromDev');
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});
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c.configure('prod', function (c) {
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c.set('settingOne', 'fromProd');
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c.set('settingTwo', 'fromProd');
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c.set('prodOnly', 'fromProd');
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});
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});
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it('should have default environment from NODE_ENV', function () {
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process.env.NODE_ENV = 'prod';
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c.default.get('settingTwo').should.equal('fromProd');
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process.env.NODE_ENV = 'dev';
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c.default.get('settingTwo').should.equal('fromDev');
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});
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it('should look up to parent config when using default', function () {
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process.env.NODE_ENV = 'dev';
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c.default.get('settingOne').should.equal('fromRoot');
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c.default.get('settingTwo').should.equal('fromDev');
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process.env.NODE_ENV = 'prod';
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c.default.get('settingOne').should.equal('fromProd');
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c.default.get('settingTwo').should.equal('fromProd');
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});
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it('should use root environment as default if NODE_ENV not given', function () {
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delete process.env.NODE_ENV;
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c.default.should.equal(c);
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c.default.get('settingOne').should.equal('fromRoot');
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c.default.get('settingTwo').should.equal('fromRoot');
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});
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it('should have setting based on hierarchy', function () {
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c('prod').has('settingTwo').should.be.true;
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c('dev').has('settingTwo').should.be.true;
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c('dev').has('settingThree').should.be.true;
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c('dev').has('prodOnly').should.be.false;
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c('prod').has('prodOnly').should.be.true;
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c('prod').has('devOnly').should.be.false;
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c('prod').has('settingThree').should.be.true;
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});
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it('should list environments', function () {
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c.environments.should.include('dev');
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c.environments.should.include('prod');
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});
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it('should list settings across hierarchy', function () {
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var expected = ['prodOnly', 'settingTwo', 'settingOne', 'settingThree'];
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expected.forEach(function (setting) {
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c('prod').settings.should.include(setting, 'expected setting ' + setting + ' but it was not found');
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});
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});
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});
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