@wordpress/edit-post/src/store/test/reducer.js

Edit Post module for WordPress.

/**
 * Internal dependencies
 */
import { isSavingMetaBoxes, metaBoxLocations } from '../reducer';

describe( 'state', () => {
	describe( 'isSavingMetaBoxes', () => {
		it( 'should return default state', () => {
			const actual = isSavingMetaBoxes( undefined, {} );
			expect( actual ).toBe( false );
		} );

		it( 'should set saving flag to true', () => {
			const action = {
				type: 'REQUEST_META_BOX_UPDATES',
			};
			const actual = isSavingMetaBoxes( false, action );

			expect( actual ).toBe( true );
		} );

		it( 'should set saving flag to false', () => {
			const action = {
				type: 'META_BOX_UPDATES_SUCCESS',
			};
			const actual = isSavingMetaBoxes( true, action );

			expect( actual ).toBe( false );
		} );
	} );

	describe( 'metaBoxLocations()', () => {
		it( 'should return default state', () => {
			const state = metaBoxLocations( undefined, {} );

			expect( state ).toEqual( {} );
		} );

		it( 'should set the active meta box locations', () => {
			const action = {
				type: 'SET_META_BOXES_PER_LOCATIONS',
				metaBoxesPerLocation: {
					normal: [ { id: 'postcustom' } ],
				},
			};

			const state = metaBoxLocations( undefined, action );

			expect( state ).toEqual( {
				normal: [ { id: 'postcustom' } ],
			} );
		} );

		it( 'should merge new meta box locations into the existing ones', () => {
			const oldState = {
				normal: [
					{ id: 'a', title: 'A' },
					{ id: 'b', title: 'B' },
				],
				side: [ { id: 's', title: 'S' } ],
			};
			const action = {
				type: 'SET_META_BOXES_PER_LOCATIONS',
				metaBoxesPerLocation: {
					normal: [
						{ id: 'b', title: 'B-updated' },
						{ id: 'c', title: 'C' },
					],
					advanced: [ { id: 'd', title: 'D' } ],
				},
			};
			const newState = metaBoxLocations( oldState, action );
			expect( newState ).toEqual( {
				normal: [
					{ id: 'a', title: 'A' },
					{ id: 'b', title: 'B-updated' },
					{ id: 'c', title: 'C' },
				],
				advanced: [ { id: 'd', title: 'D' } ],
				side: [ { id: 's', title: 'S' } ],
			} );
		} );
	} );
} );