xref: /dokuwiki/_test/tests/Ui/PageDiffTest.php (revision 2bde879a12352d26be5e3f11e86855f463734d2d) 
1*2bde879aSAndreas Gohr<?php
2*2bde879aSAndreas Gohr
3*2bde879aSAndreas Gohrnamespace dokuwiki\test\Ui;
4*2bde879aSAndreas Gohr
5*2bde879aSAndreas Gohruse dokuwiki\Ui\PageDiff;
6*2bde879aSAndreas Gohr
7*2bde879aSAndreas Gohr/**
8*2bde879aSAndreas Gohr * Tests for the page diff view dokuwiki\Ui\PageDiff.
9*2bde879aSAndreas Gohr */
10*2bde879aSAndreas Gohrclass PageDiffTest extends \DokuWikiTest
11*2bde879aSAndreas Gohr{
12*2bde879aSAndreas Gohr    /**
13*2bde879aSAndreas Gohr     * Determine which two revisions PageDiff would compare for a ?do=diff request
14*2bde879aSAndreas Gohr     * that carries no rev or rev2 parameters.
15*2bde879aSAndreas Gohr     *
16*2bde879aSAndreas Gohr     * Clears any leftover request parameters, then runs PageDiff's internal request
17*2bde879aSAndreas Gohr     * handler, which derives the default comparison pair from the changelog. Returns
18*2bde879aSAndreas Gohr     * the timestamps it selected for the older and newer side of the diff.
19*2bde879aSAndreas Gohr     *
20*2bde879aSAndreas Gohr     * @param string $page page id to diff
21*2bde879aSAndreas Gohr     * @return array the older (rev1) and newer (rev2) revision timestamps or false
22*2bde879aSAndreas Gohr     */
23*2bde879aSAndreas Gohr    private function resolveDefaultDiff($page)
24*2bde879aSAndreas Gohr    {
25*2bde879aSAndreas Gohr        global $INPUT, $INFO;
26*2bde879aSAndreas Gohr        // make sure no rev parameters leak in from a previous request
27*2bde879aSAndreas Gohr        $INPUT->remove('rev');
28*2bde879aSAndreas Gohr        $INPUT->remove('rev2');
29*2bde879aSAndreas Gohr        $INFO['id'] = $page;
30*2bde879aSAndreas Gohr
31*2bde879aSAndreas Gohr        $diff = new PageDiff($page);
32*2bde879aSAndreas Gohr        $this->callInaccessibleMethod($diff, 'handle', []);
33*2bde879aSAndreas Gohr        return [
34*2bde879aSAndreas Gohr            $this->getInaccessibleProperty($diff, 'rev1'),
35*2bde879aSAndreas Gohr            $this->getInaccessibleProperty($diff, 'rev2'),
36*2bde879aSAndreas Gohr        ];
37*2bde879aSAndreas Gohr    }
38*2bde879aSAndreas Gohr
39*2bde879aSAndreas Gohr    /**
40*2bde879aSAndreas Gohr     * Without rev parameters, the diff of an existing page compares the previous
41*2bde879aSAndreas Gohr     * revision with the current one.
42*2bde879aSAndreas Gohr     */
43*2bde879aSAndreas Gohr    public function testExistingPageComparesPreviousToCurrent()
44*2bde879aSAndreas Gohr    {
45*2bde879aSAndreas Gohr        $page = 'pagediff_existing';
46*2bde879aSAndreas Gohr        // the page file's mtime after each save is that revision's timestamp
47*2bde879aSAndreas Gohr        saveWikiText($page, 'first content', 'create', false);
48*2bde879aSAndreas Gohr        clearstatcache();
49*2bde879aSAndreas Gohr        $previous = filemtime(wikiFN($page));
50*2bde879aSAndreas Gohr        $this->waitForTick(true);
51*2bde879aSAndreas Gohr        saveWikiText($page, 'second content', 'edit', false);
52*2bde879aSAndreas Gohr        clearstatcache();
53*2bde879aSAndreas Gohr        $current = filemtime(wikiFN($page));
54*2bde879aSAndreas Gohr
55*2bde879aSAndreas Gohr        [$rev1, $rev2] = $this->resolveDefaultDiff($page);
56*2bde879aSAndreas Gohr
57*2bde879aSAndreas Gohr        $this->assertEquals($previous, $rev1, 'older side should be the previous revision');
58*2bde879aSAndreas Gohr        $this->assertEquals($current, $rev2, 'newer side should be the current revision');
59*2bde879aSAndreas Gohr    }
60*2bde879aSAndreas Gohr
61*2bde879aSAndreas Gohr    /**
62*2bde879aSAndreas Gohr     * Regression test for issue #4635: opening the default diff of a page deleted
63*2bde879aSAndreas Gohr     * through DokuWiki compares the last edit with the deletion, instead of comparing
64*2bde879aSAndreas Gohr     * the deletion entry with itself.
65*2bde879aSAndreas Gohr     */
66*2bde879aSAndreas Gohr    public function testNormalDeletionComparesPreviousToDeletion()
67*2bde879aSAndreas Gohr    {
68*2bde879aSAndreas Gohr        $page = 'pagediff_deleted';
69*2bde879aSAndreas Gohr        saveWikiText($page, 'some content', 'create', false);
70*2bde879aSAndreas Gohr        clearstatcache();
71*2bde879aSAndreas Gohr        $contentRev = filemtime(wikiFN($page)); // last revision that still had content
72*2bde879aSAndreas Gohr        $this->waitForTick(true);
73*2bde879aSAndreas Gohr
74*2bde879aSAndreas Gohr        saveWikiText($page, '', 'delete', false);
75*2bde879aSAndreas Gohr        clearstatcache();
76*2bde879aSAndreas Gohr        $this->assertFileDoesNotExist(wikiFN($page));
77*2bde879aSAndreas Gohr
78*2bde879aSAndreas Gohr        [$rev1, $rev2] = $this->resolveDefaultDiff($page);
79*2bde879aSAndreas Gohr
80*2bde879aSAndreas Gohr        $this->assertEquals($contentRev, $rev1, 'older side should be the content revision before deletion');
81*2bde879aSAndreas Gohr        $this->assertGreaterThan(
82*2bde879aSAndreas Gohr            $rev1,
83*2bde879aSAndreas Gohr            $rev2,
84*2bde879aSAndreas Gohr            'newer side must be the later deletion, not the same revision compared with itself'
85*2bde879aSAndreas Gohr        );
86*2bde879aSAndreas Gohr    }
87*2bde879aSAndreas Gohr
88*2bde879aSAndreas Gohr    /**
89*2bde879aSAndreas Gohr     * Regression test for issue #4635: opening the default diff of an externally
90*2bde879aSAndreas Gohr     * deleted page compares the last edit with the persisted deletion, instead of
91*2bde879aSAndreas Gohr     * comparing the deletion entry with itself.
92*2bde879aSAndreas Gohr     */
93*2bde879aSAndreas Gohr    public function testExternalDeletionComparesPreviousToDeletion()
94*2bde879aSAndreas Gohr    {
95*2bde879aSAndreas Gohr        $page = 'pagediff_extdeleted';
96*2bde879aSAndreas Gohr        saveWikiText($page, 'some content', 'create', false);
97*2bde879aSAndreas Gohr        clearstatcache();
98*2bde879aSAndreas Gohr        $contentRev = filemtime(wikiFN($page)); // last revision that still had content
99*2bde879aSAndreas Gohr
100*2bde879aSAndreas Gohr        // delete the page file externally, bypassing DokuWiki; resolving the diff is
101*2bde879aSAndreas Gohr        // what triggers detection and persistence of the synthesized deletion entry,
102*2bde879aSAndreas Gohr        // which is dated lastRev+1 at the earliest, so no tick is needed here
103*2bde879aSAndreas Gohr        unlink(wikiFN($page));
104*2bde879aSAndreas Gohr        clearstatcache();
105*2bde879aSAndreas Gohr
106*2bde879aSAndreas Gohr        [$rev1, $rev2] = $this->resolveDefaultDiff($page);
107*2bde879aSAndreas Gohr
108*2bde879aSAndreas Gohr        $this->assertEquals($contentRev, $rev1, 'older side should be the content revision before external deletion');
109*2bde879aSAndreas Gohr        $this->assertGreaterThan(
110*2bde879aSAndreas Gohr            $rev1,
111*2bde879aSAndreas Gohr            $rev2,
112*2bde879aSAndreas Gohr            'newer side must be the later deletion, not the same revision compared with itself'
113*2bde879aSAndreas Gohr        );
114*2bde879aSAndreas Gohr    }
115*2bde879aSAndreas Gohr
116*2bde879aSAndreas Gohr    /**
117*2bde879aSAndreas Gohr     * Regression test for issue #4635: the rendered diff of a deleted page shows the
118*2bde879aSAndreas Gohr     * removed content rather than an empty diff.
119*2bde879aSAndreas Gohr     */
120*2bde879aSAndreas Gohr    public function testDeletionDiffRendersRemovedContent()
121*2bde879aSAndreas Gohr    {
122*2bde879aSAndreas Gohr        global $INPUT, $INFO;
123*2bde879aSAndreas Gohr
124*2bde879aSAndreas Gohr        $page = 'pagediff_removedcontent';
125*2bde879aSAndreas Gohr        saveWikiText($page, 'zqxdistinctivebody', 'create', false);
126*2bde879aSAndreas Gohr        $this->waitForTick(true);
127*2bde879aSAndreas Gohr        saveWikiText($page, '', 'delete', false);
128*2bde879aSAndreas Gohr        clearstatcache();
129*2bde879aSAndreas Gohr
130*2bde879aSAndreas Gohr        $INPUT->remove('rev');
131*2bde879aSAndreas Gohr        $INPUT->remove('rev2');
132*2bde879aSAndreas Gohr        $INFO['id'] = $page;
133*2bde879aSAndreas Gohr
134*2bde879aSAndreas Gohr        $diff = new PageDiff($page);
135*2bde879aSAndreas Gohr        ob_start();
136*2bde879aSAndreas Gohr        $diff->show();
137*2bde879aSAndreas Gohr        $html = ob_get_clean();
138*2bde879aSAndreas Gohr
139*2bde879aSAndreas Gohr        $this->assertStringContainsString(
140*2bde879aSAndreas Gohr            'zqxdistinctivebody',
141*2bde879aSAndreas Gohr            $html,
142*2bde879aSAndreas Gohr            'the diff should display the removed content, not an empty diff'
143*2bde879aSAndreas Gohr        );
144*2bde879aSAndreas Gohr    }
145*2bde879aSAndreas Gohr}
146