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import deepFreeze from 'deep-freeze';
import {
DOCUMENT_HEAD_LINK_SET,
DOCUMENT_HEAD_META_SET,
DOCUMENT_HEAD_TITLE_SET,
DOCUMENT_HEAD_UNREAD_COUNT_SET,
ROUTE_SET,
} from 'calypso/state/action-types';
import { DEFAULT_META_STATE, link, meta, title, unreadCount } from '../reducer';
describe( 'reducer', () => {
describe( '#title()', () => {
test( 'should default to an empty string', () => {
const state = title( undefined, {} );
expect( state ).toBe( '' );
} );
test( 'should properly set a new title', () => {
const newState = title( undefined, { type: DOCUMENT_HEAD_TITLE_SET, title: 'new title' } );
expect( newState ).toBe( 'new title' );
} );
} );
describe( '#unreadCount()', () => {
test( 'should default to a zero', () => {
const state = unreadCount( undefined, {} );
expect( state ).toBe( 0 );
} );
test( 'should properly set a new unread count', () => {
const newState = unreadCount( undefined, {
type: DOCUMENT_HEAD_UNREAD_COUNT_SET,
count: 123,
} );
expect( newState ).toBe( 123 );
} );
it( 'should return initial state on route set action', () => {
const original = 123;
const state = unreadCount( original, { type: ROUTE_SET } );
expect( state ).toBe( 0 );
} );
} );
describe( '#meta()', () => {
test( 'should default to "og:site_name" set to "WordPress.com" array', () => {
const state = meta( undefined, {} );
expect( state ).toEqual( DEFAULT_META_STATE );
} );
test( 'should set a new meta tag', () => {
const state = deepFreeze( [ { content: 'some content', type: 'some type' } ] );
const newState = meta( state, {
type: DOCUMENT_HEAD_META_SET,
meta: [
{
content: 'another content',
type: 'another type',
},
],
} );
const expectedState = [ { content: 'another content', type: 'another type' } ];
expect( newState ).toEqual( expectedState );
} );
} );
describe( '#link()', () => {
test( 'should default to an empty array', () => {
const state = link( undefined, {} );
expect( state ).toEqual( [] );
} );
test( 'should set a new link tag', () => {
const state = deepFreeze( [ { rel: 'some-rel', href: 'https://wordpress.org' } ] );
const newState = link( state, {
type: DOCUMENT_HEAD_LINK_SET,
link: {
rel: 'another-rel',
href: 'https://automattic.com',
},
} );
const expectedState = [
{ rel: 'some-rel', href: 'https://wordpress.org' },
{ rel: 'another-rel', href: 'https://automattic.com' },
];
expect( newState ).toEqual( expectedState );
} );
test( 'should deduplicate when setting new link tags', () => {
const state = deepFreeze( [ { rel: 'some-rel', href: 'https://wordpress.org' } ] );
const newState = link( state, {
type: DOCUMENT_HEAD_LINK_SET,
link: [
{ rel: 'some-rel', href: 'https://wordpress.org' },
{ rel: 'another-rel', href: 'https://automattic.com' },
],
} );
const expectedState = [
{ rel: 'some-rel', href: 'https://wordpress.org' },
{ rel: 'another-rel', href: 'https://automattic.com' },
];
expect( newState ).toEqual( expectedState );
} );
} );
} );
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