/* * Tests of MFM * * How to run the tests: * > mocha test/mfm.ts --require ts-node/register * * To specify test: * > mocha test/mfm.ts --require ts-node/register -g 'test name' */ import * as assert from 'assert'; import analyze from '../src/mfm/parse'; import toHtml from '../src/mfm/html'; import { createTree as tree, createLeaf as leaf, MfmTree, removeOrphanedBrackets } from '../src/mfm/parser'; function text(text: string): MfmTree { return leaf('text', { text }); } describe('createLeaf', () => { it('creates leaf', () => { assert.deepStrictEqual(leaf('text', { text: 'abc' }), { node: { type: 'text', props: { text: 'abc' } }, children: [], }); }); }); describe('createTree', () => { it('creates tree', () => { const t = tree('tree', [ leaf('left', { a: 2 }), leaf('right', { b: 'hi' }) ], { c: 4 }); assert.deepStrictEqual(t, { node: { type: 'tree', props: { c: 4 } }, children: [ leaf('left', { a: 2 }), leaf('right', { b: 'hi' }) ], }); }); }); describe('removeOrphanedBrackets', () => { it('single (contained)', () => { const input = '(foo)'; const expected = '(foo)'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('single (head)', () => { const input = '(foo)bar'; const expected = '(foo)bar'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('single (tail)', () => { const input = 'foo(bar)'; const expected = 'foo(bar)'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('a', () => { const input = '(foo'; const expected = ''; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('b', () => { const input = ')foo'; const expected = ''; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('nested', () => { const input = 'foo(「(bar)」)'; const expected = 'foo(「(bar)」)'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('no brackets', () => { const input = 'foo'; const expected = 'foo'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('with foreign bracket (single)', () => { const input = 'foo(bar))'; const expected = 'foo(bar)'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('with foreign bracket (open)', () => { const input = 'foo(bar'; const expected = 'foo'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('with foreign bracket (close)', () => { const input = 'foo)bar'; const expected = 'foo'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('with foreign bracket (close and open)', () => { const input = 'foo)(bar'; const expected = 'foo'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('various bracket type', () => { const input = 'foo「(bar)」('; const expected = 'foo「(bar)」'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); it('intersected', () => { const input = 'foo(「)」'; const expected = 'foo(「)」'; const actual = removeOrphanedBrackets(input); assert.deepStrictEqual(actual, expected); }); }); describe('MFM', () => { it('can be analyzed', () => { const tokens = analyze('@himawari @hima_sub@namori.net お腹ペコい :cat: #yryr'); assert.deepStrictEqual(tokens, [ leaf('mention', { acct: '@himawari', canonical: '@himawari', username: 'himawari', host: null }), text(' '), leaf('mention', { acct: '@hima_sub@namori.net', canonical: '@hima_sub@namori.net', username: 'hima_sub', host: 'namori.net' }), text(' お腹ペコい '), leaf('emoji', { name: 'cat' }), text(' '), leaf('hashtag', { hashtag: 'yryr' }), ]); }); describe('elements', () => { describe('bold', () => { it('simple', () => { const tokens = analyze('**foo**'); assert.deepStrictEqual(tokens, [ tree('bold', [ text('foo') ], {}), ]); }); it('with other texts', () => { const tokens = analyze('bar**foo**bar'); assert.deepStrictEqual(tokens, [ text('bar'), tree('bold', [ text('foo') ], {}), text('bar'), ]); }); it('with underscores', () => { const tokens = analyze('__foo__'); assert.deepStrictEqual(tokens, [ tree('bold', [ text('foo') ], {}), ]); }); it('with underscores (ensure it allows alphabet only)', () => { const tokens = analyze('(=^・__________・^=)'); assert.deepStrictEqual(tokens, [ text('(=^・__________・^=)') ]); }); it('mixed syntax', () => { const tokens = analyze('**foo__'); assert.deepStrictEqual(tokens, [ text('**foo__'), ]); }); it('mixed syntax', () => { const tokens = analyze('__foo**'); assert.deepStrictEqual(tokens, [ text('__foo**'), ]); }); }); it('big', () => { const tokens = analyze('***Strawberry*** Pasta'); assert.deepStrictEqual(tokens, [ tree('big', [ text('Strawberry') ], {}), text(' Pasta'), ]); }); it('small', () => { const tokens = analyze('smaller'); assert.deepStrictEqual(tokens, [ tree('small', [ text('smaller') ], {}), ]); }); it('spin', () => { const tokens = analyze(':foo:'); assert.deepStrictEqual(tokens, [ tree('spin', [ leaf('emoji', { name: 'foo' }) ], {}), ]); }); describe('motion', () => { it('by triple brackets', () => { const tokens = analyze('(((foo)))'); assert.deepStrictEqual(tokens, [ tree('motion', [ text('foo') ], {}), ]); }); it('by triple brackets (with other texts)', () => { const tokens = analyze('bar(((foo)))bar'); assert.deepStrictEqual(tokens, [ text('bar'), tree('motion', [ text('foo') ], {}), text('bar'), ]); }); it('by tag', () => { const tokens = analyze('foo'); assert.deepStrictEqual(tokens, [ tree('motion', [ text('foo') ], {}), ]); }); it('by tag (with other texts)', () => { const tokens = analyze('barfoobar'); assert.deepStrictEqual(tokens, [ text('bar'), tree('motion', [ text('foo') ], {}), text('bar'), ]); }); }); describe('mention', () => { it('local', () => { const tokens = analyze('@himawari foo'); assert.deepStrictEqual(tokens, [ leaf('mention', { acct: '@himawari', canonical: '@himawari', username: 'himawari', host: null }), text(' foo') ]); }); it('remote', () => { const tokens = analyze('@hima_sub@namori.net foo'); assert.deepStrictEqual(tokens, [ leaf('mention', { acct: '@hima_sub@namori.net', canonical: '@hima_sub@namori.net', username: 'hima_sub', host: 'namori.net' }), text(' foo') ]); }); it('remote punycode', () => { const tokens = analyze('@hima_sub@xn--q9j5bya.xn--zckzah foo'); assert.deepStrictEqual(tokens, [ leaf('mention', { acct: '@hima_sub@xn--q9j5bya.xn--zckzah', canonical: '@hima_sub@なもり.テスト', username: 'hima_sub', host: 'xn--q9j5bya.xn--zckzah' }), text(' foo') ]); }); it('ignore', () => { const tokens = analyze('idolm@ster'); assert.deepStrictEqual(tokens, [ text('idolm@ster') ]); const tokens2 = analyze('@a\n@b\n@c'); assert.deepStrictEqual(tokens2, [ leaf('mention', { acct: '@a', canonical: '@a', username: 'a', host: null }), text('\n'), leaf('mention', { acct: '@b', canonical: '@b', username: 'b', host: null }), text('\n'), leaf('mention', { acct: '@c', canonical: '@c', username: 'c', host: null }) ]); const tokens3 = analyze('**x**@a'); assert.deepStrictEqual(tokens3, [ tree('bold', [ text('x') ], {}), leaf('mention', { acct: '@a', canonical: '@a', username: 'a', host: null }) ]); const tokens4 = analyze('@\n@v\n@veryverylongusername'); assert.deepStrictEqual(tokens4, [ text('@\n'), leaf('mention', { acct: '@v', canonical: '@v', username: 'v', host: null }), text('\n'), leaf('mention', { acct: '@veryverylongusername', canonical: '@veryverylongusername', username: 'veryverylongusername', host: null }), ]); }); }); describe('hashtag', () => { it('simple', () => { const tokens = analyze('#alice'); assert.deepStrictEqual(tokens, [ leaf('hashtag', { hashtag: 'alice' }) ]); }); it('after line break', () => { const tokens = analyze('foo\n#alice'); assert.deepStrictEqual(tokens, [ text('foo\n'), leaf('hashtag', { hashtag: 'alice' }) ]); }); it('with text', () => { const tokens = analyze('Strawberry Pasta #alice'); assert.deepStrictEqual(tokens, [ text('Strawberry Pasta '), leaf('hashtag', { hashtag: 'alice' }) ]); }); it('with text (zenkaku)', () => { const tokens = analyze('こんにちは#世界'); assert.deepStrictEqual(tokens, [ text('こんにちは'), leaf('hashtag', { hashtag: '世界' }) ]); }); it('ignore comma and period', () => { const tokens = analyze('Foo #bar, baz #piyo.'); assert.deepStrictEqual(tokens, [ text('Foo '), leaf('hashtag', { hashtag: 'bar' }), text(', baz '), leaf('hashtag', { hashtag: 'piyo' }), text('.'), ]); }); it('ignore exclamation mark', () => { const tokens = analyze('#Foo!'); assert.deepStrictEqual(tokens, [ leaf('hashtag', { hashtag: 'Foo' }), text('!'), ]); }); it('ignore colon', () => { const tokens = analyze('#Foo:'); assert.deepStrictEqual(tokens, [ leaf('hashtag', { hashtag: 'Foo' }), text(':'), ]); }); it('ignore single quote', () => { const tokens = analyze('#foo\''); assert.deepStrictEqual(tokens, [ leaf('hashtag', { hashtag: 'foo' }), text('\''), ]); }); it('ignore double quote', () => { const tokens = analyze('#foo"'); assert.deepStrictEqual(tokens, [ leaf('hashtag', { hashtag: 'foo' }), text('"'), ]); }); it('allow including number', () => { const tokens = analyze('#foo123'); assert.deepStrictEqual(tokens, [ leaf('hashtag', { hashtag: 'foo123' }), ]); }); it('with brackets', () => { const tokens1 = analyze('(#foo)'); assert.deepStrictEqual(tokens1, [ text('('), leaf('hashtag', { hashtag: 'foo' }), text(')'), ]); const tokens2 = analyze('「#foo」'); assert.deepStrictEqual(tokens2, [ text('「'), leaf('hashtag', { hashtag: 'foo' }), text('」'), ]); }); it('with mixed brackets', () => { const tokens = analyze('「#foo(bar)」'); assert.deepStrictEqual(tokens, [ text('「'), leaf('hashtag', { hashtag: 'foo(bar)' }), text('」'), ]); }); it('with brackets (space before)', () => { const tokens1 = analyze('(bar #foo)'); assert.deepStrictEqual(tokens1, [ text('(bar '), leaf('hashtag', { hashtag: 'foo' }), text(')'), ]); const tokens2 = analyze('「bar #foo」'); assert.deepStrictEqual(tokens2, [ text('「bar '), leaf('hashtag', { hashtag: 'foo' }), text('」'), ]); }); it('disallow number only', () => { const tokens = analyze('#123'); assert.deepStrictEqual(tokens, [ text('#123'), ]); }); it('disallow number only (with brackets)', () => { const tokens = analyze('(#123)'); assert.deepStrictEqual(tokens, [ text('(#123)'), ]); }); }); describe('quote', () => { it('basic', () => { const tokens1 = analyze('> foo'); assert.deepStrictEqual(tokens1, [ tree('quote', [ text('foo') ], {}) ]); const tokens2 = analyze('>foo'); assert.deepStrictEqual(tokens2, [ tree('quote', [ text('foo') ], {}) ]); }); it('series', () => { const tokens = analyze('> foo\n\n> bar'); assert.deepStrictEqual(tokens, [ tree('quote', [ text('foo') ], {}), text('\n'), tree('quote', [ text('bar') ], {}), ]); }); it('trailing line break', () => { const tokens1 = analyze('> foo\n'); assert.deepStrictEqual(tokens1, [ tree('quote', [ text('foo') ], {}), ]); const tokens2 = analyze('> foo\n\n'); assert.deepStrictEqual(tokens2, [ tree('quote', [ text('foo') ], {}), text('\n') ]); }); it('multiline', () => { const tokens1 = analyze('>foo\n>bar'); assert.deepStrictEqual(tokens1, [ tree('quote', [ text('foo\nbar') ], {}) ]); const tokens2 = analyze('> foo\n> bar'); assert.deepStrictEqual(tokens2, [ tree('quote', [ text('foo\nbar') ], {}) ]); }); it('multiline with trailing line break', () => { const tokens1 = analyze('> foo\n> bar\n'); assert.deepStrictEqual(tokens1, [ tree('quote', [ text('foo\nbar') ], {}), ]); const tokens2 = analyze('> foo\n> bar\n\n'); assert.deepStrictEqual(tokens2, [ tree('quote', [ text('foo\nbar') ], {}), text('\n') ]); }); it('with before and after texts', () => { const tokens = analyze('before\n> foo\nafter'); assert.deepStrictEqual(tokens, [ text('before\n'), tree('quote', [ text('foo') ], {}), text('after'), ]); }); it('multiple quotes', () => { const tokens = analyze('> foo\nbar\n\n> foo\nbar\n\n> foo\nbar'); assert.deepStrictEqual(tokens, [ tree('quote', [ text('foo') ], {}), text('bar\n\n'), tree('quote', [ text('foo') ], {}), text('bar\n\n'), tree('quote', [ text('foo') ], {}), text('bar'), ]); }); it('require line break before ">"', () => { const tokens = analyze('foo>bar'); assert.deepStrictEqual(tokens, [ text('foo>bar'), ]); }); it('nested', () => { const tokens = analyze('>> foo\n> bar'); assert.deepStrictEqual(tokens, [ tree('quote', [ tree('quote', [ text('foo') ], {}), text('bar') ], {}) ]); }); it('trim line breaks', () => { const tokens = analyze('foo\n\n>a\n>>b\n>>\n>>>\n>>>c\n>>>\n>d\n\n'); assert.deepStrictEqual(tokens, [ text('foo\n\n'), tree('quote', [ text('a\n'), tree('quote', [ text('b\n\n'), tree('quote', [ text('\nc\n') ], {}) ], {}), text('d') ], {}), text('\n'), ]); }); }); describe('url', () => { it('simple', () => { const tokens = analyze('https://example.com'); assert.deepStrictEqual(tokens, [ leaf('url', { url: 'https://example.com' }) ]); }); it('ignore trailing period', () => { const tokens = analyze('https://example.com.'); assert.deepStrictEqual(tokens, [ leaf('url', { url: 'https://example.com' }), text('.') ]); }); it('with comma', () => { const tokens = analyze('https://example.com/foo?bar=a,b'); assert.deepStrictEqual(tokens, [ leaf('url', { url: 'https://example.com/foo?bar=a,b' }) ]); }); it('ignore trailing comma', () => { const tokens = analyze('https://example.com/foo, bar'); assert.deepStrictEqual(tokens, [ leaf('url', { url: 'https://example.com/foo' }), text(', bar') ]); }); it('with brackets', () => { const tokens = analyze('https://example.com/foo(bar)'); assert.deepStrictEqual(tokens, [ leaf('url', { url: 'https://example.com/foo(bar)' }) ]); }); it('ignore parent brackets', () => { const tokens = analyze('(https://example.com/foo)'); assert.deepStrictEqual(tokens, [ text('('), leaf('url', { url: 'https://example.com/foo' }), text(')') ]); }); it('ignore parent brackets 2', () => { const tokens = analyze('(foo https://example.com/foo)'); assert.deepStrictEqual(tokens, [ text('(foo '), leaf('url', { url: 'https://example.com/foo' }), text(')') ]); }); it('ignore parent brackets with internal brackets', () => { const tokens = analyze('(https://example.com/foo(bar))'); assert.deepStrictEqual(tokens, [ text('('), leaf('url', { url: 'https://example.com/foo(bar)' }), text(')') ]); }); }); describe('link', () => { it('simple', () => { const tokens = analyze('[foo](https://example.com)'); assert.deepStrictEqual(tokens, [ tree('link', [ text('foo') ], { url: 'https://example.com', silent: false }) ]); }); it('simple (with silent flag)', () => { const tokens = analyze('?[foo](https://example.com)'); assert.deepStrictEqual(tokens, [ tree('link', [ text('foo') ], { url: 'https://example.com', silent: true }) ]); }); it('in text', () => { const tokens = analyze('before[foo](https://example.com)after'); assert.deepStrictEqual(tokens, [ text('before'), tree('link', [ text('foo') ], { url: 'https://example.com', silent: false }), text('after'), ]); }); it('with brackets', () => { const tokens = analyze('[foo](https://example.com/foo(bar))'); assert.deepStrictEqual(tokens, [ tree('link', [ text('foo') ], { url: 'https://example.com/foo(bar)', silent: false }) ]); }); it('with parent brackets', () => { const tokens = analyze('([foo](https://example.com/foo(bar)))'); assert.deepStrictEqual(tokens, [ text('('), tree('link', [ text('foo') ], { url: 'https://example.com/foo(bar)', silent: false }), text(')') ]); }); }); it('emoji', () => { const tokens1 = analyze(':cat:'); assert.deepStrictEqual(tokens1, [ leaf('emoji', { name: 'cat' }) ]); const tokens2 = analyze(':cat::cat::cat:'); assert.deepStrictEqual(tokens2, [ leaf('emoji', { name: 'cat' }), leaf('emoji', { name: 'cat' }), leaf('emoji', { name: 'cat' }) ]); const tokens3 = analyze('🍎'); assert.deepStrictEqual(tokens3, [ leaf('emoji', { emoji: '🍎' }) ]); }); describe('block code', () => { it('simple', () => { const tokens = analyze('```\nvar x = "Strawberry Pasta";\n```'); assert.deepStrictEqual(tokens, [ leaf('blockCode', { code: 'var x = "Strawberry Pasta";', lang: null }) ]); }); it('can specify language', () => { const tokens = analyze('``` json\n{ "x": 42 }\n```'); assert.deepStrictEqual(tokens, [ leaf('blockCode', { code: '{ "x": 42 }', lang: 'json' }) ]); }); it('require line break before "```"', () => { const tokens = analyze('before```\nfoo\n```'); assert.deepStrictEqual(tokens, [ text('before'), leaf('inlineCode', { code: '`' }), text('\nfoo\n'), leaf('inlineCode', { code: '`' }) ]); }); it('series', () => { const tokens = analyze('```\nfoo\n```\n```\nbar\n```\n```\nbaz\n```'); assert.deepStrictEqual(tokens, [ leaf('blockCode', { code: 'foo', lang: null }), leaf('blockCode', { code: 'bar', lang: null }), leaf('blockCode', { code: 'baz', lang: null }), ]); }); it('ignore internal marker', () => { const tokens = analyze('```\naaa```bbb\n```'); assert.deepStrictEqual(tokens, [ leaf('blockCode', { code: 'aaa```bbb', lang: null }) ]); }); it('trim after line break', () => { const tokens = analyze('```\nfoo\n```\nbar'); assert.deepStrictEqual(tokens, [ leaf('blockCode', { code: 'foo', lang: null }), text('bar') ]); }); }); describe('inline code', () => { it('simple', () => { const tokens = analyze('`var x = "Strawberry Pasta";`'); assert.deepStrictEqual(tokens, [ leaf('inlineCode', { code: 'var x = "Strawberry Pasta";' }) ]); }); it('disallow line break', () => { const tokens = analyze('`foo\nbar`'); assert.deepStrictEqual(tokens, [ text('`foo\nbar`') ]); }); it('disallow ´', () => { const tokens = analyze('`foo´bar`'); assert.deepStrictEqual(tokens, [ text('`foo´bar`') ]); }); }); it('math', () => { const fomula = 'x = {-b \\pm \\sqrt{b^2-4ac} \\over 2a}'; const text = `\\(${fomula}\\)`; const tokens = analyze(text); assert.deepStrictEqual(tokens, [ leaf('math', { formula: fomula }) ]); }); it('search', () => { const tokens1 = analyze('a b c 検索'); assert.deepStrictEqual(tokens1, [ leaf('search', { content: 'a b c 検索', query: 'a b c' }) ]); const tokens2 = analyze('a b c Search'); assert.deepStrictEqual(tokens2, [ leaf('search', { content: 'a b c Search', query: 'a b c' }) ]); const tokens3 = analyze('a b c search'); assert.deepStrictEqual(tokens3, [ leaf('search', { content: 'a b c search', query: 'a b c' }) ]); const tokens4 = analyze('a b c SEARCH'); assert.deepStrictEqual(tokens4, [ leaf('search', { content: 'a b c SEARCH', query: 'a b c' }) ]); }); describe('title', () => { it('simple', () => { const tokens = analyze('【foo】'); assert.deepStrictEqual(tokens, [ tree('title', [ text('foo') ], {}) ]); }); it('require line break', () => { const tokens = analyze('a【foo】'); assert.deepStrictEqual(tokens, [ text('a【foo】') ]); }); it('with before and after texts', () => { const tokens = analyze('before\n【foo】\nafter'); assert.deepStrictEqual(tokens, [ text('before\n'), tree('title', [ text('foo') ], {}), text('after') ]); }); it('ignore multiple title blocks', () => { const tokens = analyze('【foo】bar【baz】'); assert.deepStrictEqual(tokens, [ text('【foo】bar【baz】') ]); }); it('disallow linebreak in title', () => { const tokens = analyze('【foo\nbar】'); assert.deepStrictEqual(tokens, [ text('【foo\nbar】') ]); }); }); describe('center', () => { it('simple', () => { const tokens = analyze('
foo
'); assert.deepStrictEqual(tokens, [ tree('center', [ text('foo') ], {}), ]); }); }); describe('strike', () => { it('simple', () => { const tokens = analyze('~~foo~~'); assert.deepStrictEqual(tokens, [ tree('strike', [ text('foo') ], {}), ]); }); }); describe('italic', () => { it('', () => { const tokens = analyze('foo'); assert.deepStrictEqual(tokens, [ tree('italic', [ text('foo') ], {}), ]); }); it('underscore', () => { const tokens = analyze('_foo_'); assert.deepStrictEqual(tokens, [ tree('italic', [ text('foo') ], {}), ]); }); it('simple with asterix', () => { const tokens = analyze('*foo*'); assert.deepStrictEqual(tokens, [ tree('italic', [ text('foo') ], {}), ]); }); it('exlude emotes', () => { const tokens = analyze('*.*'); assert.deepStrictEqual(tokens, [ text("*.*"), ]); }); it('mixed', () => { const tokens = analyze('_foo*'); assert.deepStrictEqual(tokens, [ text('_foo*'), ]); }); it('mixed', () => { const tokens = analyze('*foo_'); assert.deepStrictEqual(tokens, [ text('*foo_'), ]); }); it('ignore snake_case string', () => { const tokens = analyze('foo_bar_baz'); assert.deepStrictEqual(tokens, [ text('foo_bar_baz'), ]); }); }); }); describe('toHtml', () => { it('br', () => { const input = 'foo\nbar\nbaz'; const output = '

foo
bar
baz

'; assert.equal(toHtml(analyze(input)), output); }); }); it('code block with quote', () => { const tokens = analyze('> foo\n```\nbar\n```'); assert.deepStrictEqual(tokens, [ tree('quote', [ text('foo') ], {}), leaf('blockCode', { code: 'bar', lang: null }) ]); }); it('quote between two code blocks', () => { const tokens = analyze('```\nbefore\n```\n> foo\n```\nafter\n```'); assert.deepStrictEqual(tokens, [ leaf('blockCode', { code: 'before', lang: null }), tree('quote', [ text('foo') ], {}), leaf('blockCode', { code: 'after', lang: null }) ]); }); });