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Diffstat (limited to 'test/unit/util/html.js')
| -rw-r--r-- | test/unit/util/html.js | 502 |
1 files changed, 502 insertions, 0 deletions
diff --git a/test/unit/util/html.js b/test/unit/util/html.js new file mode 100644 index 00000000..c26d53b2 --- /dev/null +++ b/test/unit/util/html.js @@ -0,0 +1,502 @@ +import t from 'tap'; + +import * as html from '../../../src/util/html.js'; +const {Tag, Attributes, Template, Slot} = html; + +t.test(`html.tag`, t => { + t.plan(16); + + const tag1 = + html.tag('div', + {[html.onlyIfContent]: true, foo: 'bar'}, + 'child'); + + // 1-5: basic behavior when passing attributes + t.ok(tag1 instanceof Tag); + t.ok(tag1.onlyIfContent); + t.equal(tag1.attributes.get('foo'), 'bar'); + t.equal(tag1.content.length, 1); + t.equal(tag1.content[0], 'child'); + + const tag2 = html.tag('div', ['two', 'children']); + + // 6-8: basic behavior when not passing attributes + t.equal(tag2.content.length, 2); + t.equal(tag2.content[0], 'two'); + t.equal(tag2.content[1], 'children'); + + const genericTag = html.tag('div'); + let genericSlot; + const genericTemplate = html.template(slot => { + genericSlot = slot('title'); + return []; + }); + + // 9-10: tag treated as content, not attributes + const tag3 = html.tag('div', genericTag); + t.equal(tag3.content.length, 1); + t.equal(tag3.content[0], genericTag); + + // 11-12: template treated as content, not attributes + const tag4 = html.tag('div', genericTemplate); + t.equal(tag4.content.length, 1); + t.equal(tag4.content[0], genericTemplate); + + // 13-14: slot treated as content, not attributes + const tag5 = html.tag('div', genericSlot); + t.equal(tag5.content.length, 1); + t.equal(tag5.content[0], genericSlot); + + // 15-16: deep flattening support + const tag6 = + html.tag('div', [ + true && + [[[[[[ + true && + [[[[[`That's deep.`]]]]], + ]]]]]], + ]); + t.equal(tag6.content.length, 1); + t.equal(tag6.content[0], `That's deep.`); +}); + +t.test(`Tag (basic interface)`, t => { + t.plan(11); + + const tag1 = new Tag(); + + // 1-5: essential properties & no arguments provided + t.equal(tag1.tagName, ''); + t.ok(Array.isArray(tag1.content)); + t.equal(tag1.content.length, 0); + t.ok(tag1.attributes instanceof Attributes); + t.equal(tag1.attributes.toString(), ''); + + const tag2 = new Tag('div', {id: 'banana'}, ['one', 'two', tag1]); + + // 6-11: properties on basic usage + t.equal(tag2.tagName, 'div'); + t.equal(tag2.content.length, 3); + t.equal(tag2.content[0], 'one'); + t.equal(tag2.content[1], 'two'); + t.equal(tag2.content[2], tag1); + t.equal(tag2.attributes.get('id'), 'banana'); +}); + +t.test(`Tag (self-closing)`, t => { + t.plan(10); + + const tag1 = new Tag('br'); + const tag2 = new Tag('div'); + const tag3 = new Tag('div'); + tag3.tagName = 'br'; + + // 1-3: selfClosing depends on tagName + t.ok(tag1.selfClosing); + t.notOk(tag2.selfClosing); + t.ok(tag3.selfClosing); + + // 4: constructing self-closing tag with content throws + t.throws(() => new Tag('br', null, 'bananas'), /self-closing/); + + // 5: setting content on self-closing tag throws + t.throws(() => { tag1.content = ['suspicious']; }, /self-closing/); + + // 6-9: setting empty content on self-closing tag doesn't throw + t.doesNotThrow(() => { tag1.content = null; }); + t.doesNotThrow(() => { tag1.content = undefined; }); + t.doesNotThrow(() => { tag1.content = ''; }); + t.doesNotThrow(() => { tag1.content = [null, '', false]; }); + + const tag4 = new Tag('div', null, 'bananas'); + + // 10: changing tagName to self-closing when tag has content throws + t.throws(() => { tag4.tagName = 'br'; }, /self-closing/); +}); + +t.test(`Tag (properties from attributes - from constructor)`, t => { + t.plan(6); + + const tag = new Tag('div', { + [html.onlyIfContent]: true, + [html.noEdgeWhitespace]: true, + [html.joinChildren]: '<br>', + }); + + // 1-3: basic exposed properties from attributes in constructor + t.ok(tag.onlyIfContent); + t.ok(tag.noEdgeWhitespace); + t.equal(tag.joinChildren, '<br>'); + + // 4-6: property values stored on attributes with public symbols + t.equal(tag.attributes.get(html.onlyIfContent), true); + t.equal(tag.attributes.get(html.noEdgeWhitespace), true); + t.equal(tag.attributes.get(html.joinChildren), '<br>'); +}); + +t.test(`Tag (properties from attributes - mutating)`, t => { + t.plan(12); + + // 1-3: exposed properties reflect reasonable attribute values + + const tag1 = new Tag('div', { + [html.onlyIfContent]: true, + [html.noEdgeWhitespace]: true, + [html.joinChildren]: '<br>', + }); + + tag1.attributes.set(html.onlyIfContent, false); + tag1.attributes.remove(html.noEdgeWhitespace); + tag1.attributes.set(html.joinChildren, '🍇'); + + t.equal(tag1.onlyIfContent, false); + t.equal(tag1.noEdgeWhitespace, false); + t.equal(tag1.joinChildren, '🍇'); + + // 4-6: exposed properties reflect unreasonable attribute values + + const tag2 = new Tag('div', { + [html.onlyIfContent]: true, + [html.noEdgeWhitespace]: true, + [html.joinChildren]: '<br>', + }); + + tag2.attributes.set(html.onlyIfContent, ''); + tag2.attributes.set(html.noEdgeWhitespace, 12345); + tag2.attributes.set(html.joinChildren, 0.0001); + + t.equal(tag2.onlyIfContent, false); + t.equal(tag2.noEdgeWhitespace, true); + t.equal(tag2.joinChildren, '0.0001'); + + // 7-9: attribute values reflect reasonable mutated properties + + const tag3 = new Tag('div', null, { + [html.onlyIfContent]: false, + [html.noEdgeWhitespace]: true, + [html.joinChildren]: '🍜', + }) + + tag3.onlyIfContent = true; + tag3.noEdgeWhitespace = false; + tag3.joinChildren = '🦑'; + + t.equal(tag3.attributes.get(html.onlyIfContent), true); + t.equal(tag3.attributes.get(html.noEdgeWhitespace), undefined); + t.equal(tag3.joinChildren, '🦑'); + + // 10-12: attribute values reflect unreasonable mutated properties + + const tag4 = new Tag('div', null, { + [html.onlyIfContent]: false, + [html.noEdgeWhitespace]: true, + [html.joinChildren]: '🍜', + }); + + tag4.onlyIfContent = 'armadillo'; + tag4.noEdgeWhitespace = 0; + tag4.joinChildren = Infinity; + + t.equal(tag4.attributes.get(html.onlyIfContent), true); + t.equal(tag4.attributes.get(html.noEdgeWhitespace), undefined); + t.equal(tag4.attributes.get(html.joinChildren), 'Infinity'); +}); + +t.test(`Tag.toString`, t => { + t.plan(9); + + // 1: basic behavior + + const tag1 = + html.tag('div', 'Content'); + + t.equal(tag1.toString(), + `<div>Content</div>`); + + // 2: stringifies nested element + + const tag2 = + html.tag('div', html.tag('p', 'Content')); + + t.equal(tag2.toString(), + `<div><p>Content</p></div>`); + + // 3: stringifies attributes + + const tag3 = + html.tag('div', + { + id: 'banana', + class: ['foo', 'bar'], + contenteditable: true, + biggerthanabreadbox: false, + saying: `"To light a candle is to cast a shadow..."`, + tabindex: 413, + }, + 'Content'); + + t.equal(tag3.toString(), + `<div id="banana" class="foo bar" contenteditable ` + + `saying=""To light a candle is to cast a shadow..."" ` + + `tabindex="413">Content</div>`); + + // 4: attributes match input order + + const tag4 = + html.tag('div', + {class: ['foo', 'bar'], id: 'banana'}, + 'Content'); + + t.equal(tag4.toString(), + `<div class="foo bar" id="banana">Content</div>`); + + // 5: multiline contented indented + + const tag5 = + html.tag('div', 'foo\nbar'); + + t.equal(tag5.toString(), + `<div>\n` + + ` foo\n` + + ` bar\n` + + `</div>`); + + // 6: nested multiline content double-indented + + const tag6 = + html.tag('div', [ + html.tag('p', + 'foo\nbar'), + html.tag('span', `I'm on one line!`), + ]); + + t.equal(tag6.toString(), + `<div>\n` + + ` <p>\n` + + ` foo\n` + + ` bar\n` + + ` </p>\n` + + ` <span>I'm on one line!</span>\n` + + `</div>`); + + // 7: self-closing (with attributes) + + const tag7 = + html.tag('article', [ + html.tag('h1', `Title`), + html.tag('hr', {style: `color: magenta`}), + html.tag('p', `Shenanigans!`), + ]); + + t.equal(tag7.toString(), + `<article>\n` + + ` <h1>Title</h1>\n` + + ` <hr style="color: magenta">\n` + + ` <p>Shenanigans!</p>\n` + + `</article>`); + + // 8-9: empty tagName passes content through directly + + const tag8 = + html.tag(null, [ + html.tag('h1', `Foo`), + html.tag(`h2`, `Bar`), + ]); + + t.equal(tag8.toString(), + `<h1>Foo</h1>\n` + + `<h2>Bar</h2>`); + + const tag9 = + html.tag(null, { + [html.joinChildren]: html.tag('br'), + }, [ + `Say it with me...`, + `Supercalifragilisticexpialidocious!` + ]); + + t.equal(tag9.toString(), + `Say it with me...\n` + + `<br>\n` + + `Supercalifragilisticexpialidocious!`); +}); + +t.test(`Tag.toString (onlyIfContent)`, t => { + t.plan(4); + + // 1-2: basic behavior + + const tag1 = + html.tag('div', + {[html.onlyIfContent]: true}, + `Hello!`); + + t.equal(tag1.toString(), + `<div>Hello!</div>`); + + const tag2 = + html.tag('div', + {[html.onlyIfContent]: true}, + ''); + + t.equal(tag2.toString(), + ''); + + // 3-4: nested onlyIfContent with "more" content + + const tag3 = + html.tag('div', + {[html.onlyIfContent]: true}, + [ + '', + 0, + html.tag('h1', + {[html.onlyIfContent]: true}, + html.tag('strong', + {[html.onlyIfContent]: true})), + null, + false, + ]); + + t.equal(tag3.toString(), + ''); + + const tag4 = + html.tag('div', + {[html.onlyIfContent]: true}, + [ + '', + 0, + html.tag('h1', + {[html.onlyIfContent]: true}, + html.tag('strong')), + null, + false, + ]); + + t.equal(tag4.toString(), + `<div><h1><strong></strong></h1></div>`); +}); + +t.test(`Tag.toString (joinChildren, noEdgeWhitespace)`, t => { + t.plan(6); + + // 1: joinChildren: default (\n), noEdgeWhitespace: true + + const tag1 = + html.tag('div', + {[html.noEdgeWhitespace]: true}, + [ + 'Foo', + 'Bar', + 'Baz', + ]); + + t.equal(tag1.toString(), + `<div>Foo\n` + + ` Bar\n` + + ` Baz</div>`); + + // 2: joinChildren: one-line string, noEdgeWhitespace: default (false) + + const tag2 = + html.tag('div', + { + [html.joinChildren]: + html.tag('br', {location: '🍍'}), + }, + [ + 'Foo', + 'Bar', + 'Baz', + ]); + + t.equal(tag2.toString(), + `<div>\n` + + ` Foo\n` + + ` <br location="🍍">\n` + + ` Bar\n` + + ` <br location="🍍">\n` + + ` Baz\n` + + `</div>`); + + // 3-4: joinChildren: blank string, noEdgeWhitespace: default (false) + + const tag3 = + html.tag('div', + {[html.joinChildren]: ''}, + [ + 'Foo', + 'Bar', + 'Baz', + ]); + + t.equal(tag3.toString(), + `<div>FooBarBaz</div>`); + + const tag4 = + html.tag('div', + {[html.joinChildren]: ''}, + [ + `Ain't I\na cute one?`, + `~` + ]); + + t.equal(tag4.toString(), + `<div>\n` + + ` Ain't I\n` + + ` a cute one?~\n` + + `</div>`); + + // 5: joinChildren: one-line string, noEdgeWhitespace: true + + const tag5 = + html.tag('div', + { + [html.joinChildren]: html.tag('br'), + [html.noEdgeWhitespace]: true, + }, + [ + 'Foo', + 'Bar', + 'Baz', + ]); + + t.equal(tag5.toString(), + `<div>Foo\n` + + ` <br>\n` + + ` Bar\n` + + ` <br>\n` + + ` Baz</div>`); + + // 6: joinChildren: empty string, noEdgeWhitespace: true + + const tag6 = + html.tag('span', + { + [html.joinChildren]: '', + [html.noEdgeWhitespace]: true, + }, + [ + html.tag('i', `Oh yes~ `), + `You're a cute one`, + html.tag('sup', `💕`), + ]); + + t.equal(tag6.toString(), + `<span><i>Oh yes~ </i>You're a cute one<sup>💕</sup></span>`); +}); + +t.test(`Tag.toString (custom attributes)`, t => { + t.plan(1); + + t.test(`Tag.toString (custom attribute: href)`, t => { + t.plan(2); + + const tag1 = html.tag('a', {href: `https://hsmusic.wiki/`}); + t.equal(tag1.toString(), `<a href="https://hsmusic.wiki/"></a>`); + + const tag2 = html.tag('a', {href: `https://hsmusic.wiki/media/Album Booklet.pdf`}); + t.equal(tag2.toString(), `<a href="https://hsmusic.wiki/media/Album%20Booklet.pdf"></a>`); + }); +}); |