xref: /dokuwiki/_test/tests/Parsing/ParserMode/GfmStrongUnderscoreTest.php (revision 13a62f810fbd091d15ab734b467eaec0a6bf829a) 
1<?php
2
3namespace dokuwiki\test\Parsing\ParserMode;
4
5use dokuwiki\Parsing\ModeRegistry;
6use dokuwiki\Parsing\ParserMode\GfmStrongUnderscore;
7
8/**
9 * Tests for GFM strong emphasis via double underscores (`__text__`).
10 */
11class GfmStrongUnderscoreTest extends ParserTestBase
12{
13    public function setUp(): void
14    {
15        parent::setUp();
16        global $conf;
17        $conf['syntax'] = 'md';
18        ModeRegistry::reset();
19    }
20
21    public function tearDown(): void
22    {
23        ModeRegistry::reset();
24        parent::tearDown();
25    }
26
27    function testBasic()
28    {
29        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
30        $this->P->parse('Foo __Bar__ Baz');
31        $calls = [
32            ['document_start', []],
33            ['p_open', []],
34            ['cdata', ["\nFoo "]],
35            ['strong_open', []],
36            ['cdata', ['Bar']],
37            ['strong_close', []],
38            ['cdata', [' Baz']],
39            ['p_close', []],
40            ['document_end', []],
41        ];
42        $this->assertCalls($calls, $this->H->calls);
43    }
44
45    function testSingleCharacter()
46    {
47        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
48        $this->P->parse('__x__');
49        $modes = array_column($this->H->calls, 0);
50        $this->assertContains('strong_open', $modes);
51        $this->assertContains('strong_close', $modes);
52    }
53
54    function testMultipleWords()
55    {
56        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
57        $this->P->parse('__one two three__');
58        $modes = array_column($this->H->calls, 0);
59        $this->assertContains('strong_open', $modes);
60    }
61
62    function testIntrawordDoesNotOpen()
63    {
64        // `foo__bar__` — opening `__` intraword (preceded by `o`).
65        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
66        $this->P->parse('foo__bar__');
67        $this->assertNotContains('strong_open', array_column($this->H->calls, 0));
68    }
69
70    function testLeadingWhitespaceDoesNotOpen()
71    {
72        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
73        $this->P->parse('__ foo bar__');
74        $this->assertNotContains('strong_open', array_column($this->H->calls, 0));
75    }
76
77    function testTrailingWhitespaceDoesNotClose()
78    {
79        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
80        $this->P->parse('__foo bar __');
81        $this->assertNotContains('strong_open', array_column($this->H->calls, 0));
82    }
83
84    function testEmptyDelimiterDoesNotMatch()
85    {
86        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
87        $this->P->parse('____');
88        $this->assertNotContains('strong_open', array_column($this->H->calls, 0));
89    }
90
91    function testMultibyteIntrawordDoesNotMatch()
92    {
93        // Cyrillic spec example: `пристаням__стремятся__` — intraword, literal.
94        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
95        $this->P->parse('пристаням__стремятся__');
96        $this->assertNotContains('strong_open', array_column($this->H->calls, 0));
97    }
98
99    function testMultibyteContentInsideStrongWorks()
100    {
101        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
102        $this->P->parse('foo __für etwas__ bar');
103        $this->assertContains('strong_open', array_column($this->H->calls, 0));
104        $this->assertContains('strong_close', array_column($this->H->calls, 0));
105    }
106
107    function testDoesNotSpanParagraphBoundary()
108    {
109        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
110        $this->P->parse("__open\n\nclose__");
111        $this->assertNotContains('strong_open', array_column($this->H->calls, 0));
112    }
113
114    function testSortValue()
115    {
116        $this->assertSame(70, (new GfmStrongUnderscore())->getSort());
117    }
118
119    function testInstructionNameIsStrong()
120    {
121        // The mode name is distinct (so it coexists with DW Strong in the
122        // lexer) but it must emit the same `strong_open`/`strong_close`
123        // instructions so the XHTML renderer outputs <strong>.
124        $this->P->addMode('gfm_strong_underscore', new GfmStrongUnderscore());
125        $this->P->parse('__x__');
126        $modes = array_column($this->H->calls, 0);
127        $this->assertContains('strong_open', $modes);
128        $this->assertNotContains('gfm_strong_underscore_open', $modes);
129    }
130}
131