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// Copied from https://github.com/Automattic/wp-calypso/blob/6755acc862c0387b7061e13f99fd22c5dd22e458/packages/create-calypso-config/src/test/index.js
// This makes sure our implementation is compatible with the original one.
import createConfig from '../create-odyssey-config';
describe( 'index', () => {
describe( 'config without data', () => {
const config = createConfig( {} );
test( 'has to return false when the feature flags are not specified', () => {
const result = config.isEnabled( 'flagA' );
expect( result ).toBe( false );
} );
} );
describe( 'config with data', () => {
const config = createConfig( {
keyA: 'value',
features: {
flagA: false,
flagB: false,
flagC: true,
},
} );
test( 'has to return value of the provided key', () => {
const result = config( 'keyA' );
expect( result ).toEqual( 'value' );
} );
test( 'has to return false when the provided feature flag is disabled', () => {
const result = config.isEnabled( 'flagA' );
expect( result ).toBe( false );
} );
test( 'has to return false when the provided feature flag is enabled', () => {
const result = config.isEnabled( 'flagC' );
expect( result ).toBe( true );
} );
describe( 'error cases', () => {
const NODE_ENV = process.env.NODE_ENV;
const fakeKey = 'where did all the errors go?';
afterEach( () => ( process.env.NODE_ENV = NODE_ENV ) );
test( "should throw an error when given key doesn't exist (NODE_ENV == development)", () => {
process.env.NODE_ENV = 'development';
expect( () => config( fakeKey ) ).toThrow( ReferenceError );
} );
test( "should not throw an error when given key doesn't exist (NODE_ENV != development)", () => {
const envs = [ 'client', 'desktop', 'horizon', 'production', 'stage', 'test', 'wpcalypso' ];
envs.forEach( ( env ) => {
process.env.NODE_ENV = env;
expect( process.env.NODE_ENV ).toEqual( env );
expect( () => config( fakeKey ) ).not.toThrow( Error );
} );
} );
} );
} );
describe( 'config utilities', () => {
let config;
beforeEach( () => {
config = createConfig( {
features: {
flagA: false,
flagB: false,
flagC: true,
},
} );
} );
afterEach( () => {
config = null;
} );
describe( 'isEnabled', () => {
test( 'it correctly reports status of features', () => {
expect( config.isEnabled( 'flagA' ) ).toBe( false );
expect( config.isEnabled( 'flagC' ) ).toBe( true );
} );
test( 'it defaults to "false" when feature is not defined', () => {
expect( config.isEnabled( 'flagXYZ' ) ).toBe( false );
} );
} );
describe( 'enable', () => {
test( 'it can enable features which are not yet set', () => {
config.enable( 'flagD' );
config.enable( 'flagE' );
expect( config.isEnabled( 'flagD' ) ).toBe( true );
expect( config.isEnabled( 'flagE' ) ).toBe( true );
} );
test( 'it can toggle existing features to enable them', () => {
config.enable( 'flagA' );
expect( config.isEnabled( 'flagA' ) ).toBe( true );
} );
} );
describe( 'disable', () => {
test( 'it can toggle existing features to disable them', () => {
config.disable( 'flagC' );
expect( config.isEnabled( 'flagC' ) ).toBe( false );
} );
test( 'it retains existing disable setting for features that are already disabled', () => {
config.disable( 'flagA' );
expect( config.isEnabled( 'flagA' ) ).toBe( false );
} );
test( 'it will handle setting new features to a initial disabled state', () => {
config.disable( 'flagZXY' );
expect( config.isEnabled( 'flagZXY' ) ).toBe( false );
} );
} );
} );
} );
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