1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× 1× | import assert from 'assert'; import React from 'react'; import { renderToStaticMarkup } from 'react-dom/server'; import DocumentMeta from '../'; describe('DocumentMeta', () => { before(() => { DocumentMeta.canUseDOM = false; }); describe('.rewind()', () => { it('clears the mounted instances', () => { renderToStaticMarkup( React.createElement(DocumentMeta, {title: 'a'}, React.createElement(DocumentMeta, {title: 'b'}, React.createElement(DocumentMeta, {title: 'c'}) ) ) ); assert.deepEqual(DocumentMeta.peek(), {title: 'c'}); DocumentMeta.rewind(); assert.strictEqual(DocumentMeta.peek(), undefined); }); it('returns the latest document meta', () => { const title = 'cheese'; renderToStaticMarkup( React.createElement(DocumentMeta, {title: 'a'}, React.createElement(DocumentMeta, {title: 'b'}, React.createElement(DocumentMeta, {title}) ) ) ); assert.deepEqual(DocumentMeta.rewind(), { title }); }); it('returns undefined if no mounted instances exist', () => { renderToStaticMarkup( React.createElement(DocumentMeta, {title: 'a'}, React.createElement(DocumentMeta, {title: 'b'}, React.createElement(DocumentMeta, {title: 'c'}) ) ) ); DocumentMeta.rewind(); assert.strictEqual(DocumentMeta.peek(), undefined); }); }); describe('.renderAsReact()', () => { it('returns an empty array if no meta data has been mounted', () => { React.createElement(DocumentMeta, {title: 'a'}, React.createElement(DocumentMeta, {title: 'b'}, React.createElement(DocumentMeta, {title: 'c'}) ) ); const rendered = DocumentMeta.renderAsReact(); assert.ok(Array.isArray(rendered)); assert.strictEqual(rendered.length, 0); }); it('returns the latest document meta as an array of React components', () => { renderToStaticMarkup( React.createElement(DocumentMeta, {title: 'a'}, React.createElement(DocumentMeta, {title: 'b'}, React.createElement(DocumentMeta, {title: 'c'}) ) ) ); const rendered = DocumentMeta.renderAsReact(); assert.ok(Array.isArray(rendered)); assert.strictEqual(rendered.length, 1); assert.strictEqual(rendered[0].type, 'title'); assert.strictEqual(rendered[0].props.children, 'c'); }); }); describe('.renderAsHTML()', () => { it('returns an empty string if no meta data has been mounted', () => { React.createElement(DocumentMeta, {title: 'a'}, React.createElement(DocumentMeta, {title: 'b'}, React.createElement(DocumentMeta, {title: 'c'}) ) ); assert.strictEqual(DocumentMeta.renderAsHTML(), ''); }); it('returns the latest document meta as HTML', () => { renderToStaticMarkup( React.createElement(DocumentMeta, {title: 'a'}, React.createElement(DocumentMeta, {title: 'b'}, React.createElement(DocumentMeta, {title: 'c'}) ) ) ); assert.strictEqual(DocumentMeta.renderAsHTML(), '<title>c</title>'); }); }); describe('container element with children', () => { it('renders the children', () => { const title = 'foo'; const markup = renderToStaticMarkup( <DocumentMeta title={ title }> <div>Child element</div> </DocumentMeta> ); assert.strictEqual(markup, '<div>Child element</div>'); assert.deepEqual(DocumentMeta.rewind(), { title }); }); }); }); |