nconf-lite/test/stores/argv.test.js

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/*
* argv-test.js: Tests for the nconf argv store.
*
* (C) 2011, Charlie Robbins and the Contributors.
*
*/
var yargs = require('yargs');
var nconf = require('../../lib/nconf');
describe('nconf/stores/argv, An instance of nconf.Argv', () => {
it("should have the correct methods defined", () => {
var argv = new nconf.Argv();
expect(typeof argv.loadSync).toBe('function');
expect(typeof argv.loadArgv).toBe('function');
expect(argv.options).toEqual({});
});
describe("can be created with a custom yargs", () => {
var yargsInstance = yargs.alias('s', 'somearg').default('s', 'false');
it("and can give access to them", () => {
var argv = new nconf.Argv(yargsInstance);
expect(argv.options).toBe(yargsInstance);
});
it("values are the one from the custom yargv", () => {
var argv = new nconf.Argv(yargsInstance);
argv.loadSync();
expect(argv.get('somearg')).toBe('false');
expect(argv.get('s')).toBe('false');
});
});
describe("can be created with a nconf yargs", () => {
var options = {somearg: {alias: 's', default: 'false'}};
it("and can give access to them", () => {
var argv = new nconf.Argv(options);
expect(argv.options).toEqual({somearg: {alias: 's', default: 'false'}});
});
it("values are the one from the custom yargv", () => {
var argv = new nconf.Argv(options);
argv.loadSync();
expect(argv.get('somearg')).toBe('false');
expect(argv.get('s')).toBe('false');
});
it("values cannot be altered with set when readOnly:true", () => {
var argv = new nconf.Argv(options);
argv.loadSync();
argv.set('somearg', 'true');
expect(argv.get('somearg')).toBe('false');
});
});
describe("can be created with readOnly set to be false", () => {
it("readOnly is actually false", () => {
var argv = new nconf.Argv({readOnly: false});
expect(argv.readOnly).toBe(false);
});
it("values can be changed by calling .set", () => {
var argv = new nconf.Argv({somearg: {alias: 's', default: 'false'}, readOnly: false});
argv.loadSync();
expect(argv.get('somearg')).toBe('false');
argv.set('somearg', 'true');
expect(argv.get('somearg')).toBe('true');
});
});
});