xref: /dokuwiki/_test/tests/Parsing/ParserMode/GfmEmphasisStrongTest.php (revision 47a02a102092be9e1e6f1ddaf158bdfffdb13d4f) 
1<?php
2
3namespace dokuwiki\test\Parsing\ParserMode;
4
5use dokuwiki\Parsing\ParserMode\GfmEmphasisStrong;
6
7/**
8 * Tests for the GFM em-wrapping-strong mode (`***text***`).
9 *
10 * Only the exact 3+3 symmetric variant is handled. Longer symmetric runs
11 * (4+4, 6+6, ...) and asymmetric variants fall through to other modes or
12 * stay literal.
13 */
14class GfmEmphasisStrongTest extends ParserTestBase
15{
16    public function setUp(): void
17    {
18        parent::setUp();
19        $this->setSyntax('md');
20    }
21
22    function testBasic()
23    {
24        $this->P->addMode('gfm_emphasis_strong', new GfmEmphasisStrong());
25        $this->P->parse('Foo ***Bar*** Baz');
26        $calls = [
27            ['document_start', []],
28            ['p_open', []],
29            ['cdata', ["\nFoo "]],
30            ['emphasis_open', []],
31            ['strong_open', []],
32            ['cdata', ['Bar']],
33            ['strong_close', []],
34            ['emphasis_close', []],
35            ['cdata', [' Baz']],
36            ['p_close', []],
37            ['document_end', []],
38        ];
39        $this->assertCalls($calls, $this->H->calls);
40    }
41
42    function testSingleCharacter()
43    {
44        $this->P->addMode('gfm_emphasis_strong', new GfmEmphasisStrong());
45        $this->P->parse('***a***');
46        $modes = array_column($this->H->calls, 0);
47        $this->assertContains('emphasis_open', $modes);
48        $this->assertContains('strong_open', $modes);
49        $this->assertContains('strong_close', $modes);
50        $this->assertContains('emphasis_close', $modes);
51    }
52
53    function testLeadingWhitespaceDoesNotMatch()
54    {
55        $this->P->addMode('gfm_emphasis_strong', new GfmEmphasisStrong());
56        $this->P->parse('*** foo***');
57        $this->assertNotContains('emphasis_open', array_column($this->H->calls, 0));
58    }
59
60    function testTrailingWhitespaceDoesNotMatch()
61    {
62        $this->P->addMode('gfm_emphasis_strong', new GfmEmphasisStrong());
63        $this->P->parse('***foo ***');
64        $this->assertNotContains('emphasis_open', array_column($this->H->calls, 0));
65    }
66
67    function testDoesNotSpanParagraphBoundary()
68    {
69        $this->P->addMode('gfm_emphasis_strong', new GfmEmphasisStrong());
70        $this->P->parse("***foo\n\nbar***");
71        $this->assertNotContains('emphasis_open', array_column($this->H->calls, 0));
72    }
73
74    function testLongerSymmetricRunDoesNotMatch()
75    {
76        // `****foo****` has 4 asterisks each side. The entry pattern requires
77        // the opener run to be exactly 3 (via `(?<!\*)` and `(?!\*)` on the
78        // closer), so this mode doesn't fire. It falls through to other
79        // modes (which is tested via the full spec suite).
80        $this->P->addMode('gfm_emphasis_strong', new GfmEmphasisStrong());
81        $this->P->parse('****foo****');
82        $this->assertNotContains('emphasis_open', array_column($this->H->calls, 0));
83    }
84
85    function testAsymmetricDoesNotMatch()
86    {
87        // `***foo**` has 3 asterisks on the left but only 2 on the right.
88        // The entry's closing-delimiter lookahead requires exactly 3 `*`s
89        // not followed by another `*`, so there's no valid closer.
90        $this->P->addMode('gfm_emphasis_strong', new GfmEmphasisStrong());
91        $this->P->parse('***foo**');
92        $this->assertNotContains('emphasis_open', array_column($this->H->calls, 0));
93    }
94
95    function testSortValue()
96    {
97        $this->assertSame(65, (new GfmEmphasisStrong())->getSort());
98    }
99}
100