Add test cases for indexer rename page/meta value methods

_test/tests/inc/indexer_rename.test.php

+<?php
+/**
+ * Test cases for the Doku_Indexer::renamePage and Doku_Indexer::renameMetaValue methods
+ */
+class indexer_rename_test extends DokuWikiTest {
+    /** @var Doku_Indexer $indexer */
+    private $indexer;
+
+    private $old_id = 'old_testid';
+
+    function setUp() {
+        parent::setUp();
+        $this->indexer = idx_get_indexer();
+        $this->indexer->clear();
+
+        saveWikiText($this->old_id, 'Old test content', 'Created old test page for indexer rename test');
+        idx_addPage($this->old_id);
+    }
+
+    function test_rename_to_new_page() {
+        $newid = 'new_id_1';
+
+        $oldpid = $this->indexer->getPID($this->old_id);
+
+        $this->indexer->renamePage($this->old_id, $newid);
+        io_rename(wikiFN($this->old_id), wikiFN($newid));
+
+        $this->assertNotEquals($this->indexer->getPID($this->old_id), $oldpid, 'PID for the old page unchanged after rename.');
+        $this->assertEquals($this->indexer->getPID($newid), $oldpid, 'New page has not the old pid.');
+        $query = array('old');
+        $this->assertEquals(array('old' => array($newid => 1)), $this->indexer->lookup($query), '"Old" doesn\'t find the new page');
+    }
+
+    function test_rename_to_existing_page() {
+        $newid = 'existing_page';
+        saveWikiText($newid, 'Existing content', 'Created page for move_to_existing_page');
+        idx_addPage($newid);
+
+        $oldpid = $this->indexer->getPID($this->old_id);
+        $existingpid = $this->indexer->getPID($newid);
+
+        $this->indexer->renamePage($this->old_id, $newid);
+
+        $this->assertNotEquals($this->indexer->getPID($this->old_id), $oldpid, 'PID for old page unchanged after rename.');
+        $this->assertNotEquals($this->indexer->getPID($this->old_id), $existingpid, 'PID for old page is now PID of the existing page.');
+        $this->assertEquals($this->indexer->getPID($newid), $oldpid, 'New page has not the old pid.');
+        $query = array('existing');
+        $this->assertEquals(array('existing' => array()), $this->indexer->lookup($query), 'Existing page hasn\'t been deleted from the index.');
+        $query = array('old');
+        $this->assertEquals(array('old' => array($newid => 1)), $this->indexer->lookup($query), '"Old" doesn\'t find the new page');
+    }
+
+    function test_meta_rename_to_new_value() {
+        $this->indexer->addMetaKeys($this->old_id, array('mkey' => 'old_value'));
+
+        $this->indexer->renameMetaValue('mkey', 'old_value', 'new_value');
+        $query = 'old_value';
+        $this->assertEquals(array(), $this->indexer->lookupKey('mkey', $query), 'Page can still be found under old value.');
+        $query = 'new_value';
+        $this->assertEquals(array($this->old_id), $this->indexer->lookupKey('mkey', $query), 'Page can\'t be found under new value.');
+    }
+
+    function test_meta_rename_to_existing_value() {
+        $this->indexer->addMetaKeys($this->old_id, array('mkey' => array('old_value', 'new_value')));
+
+        saveWikiText('newvalue', 'Test page', '');
+        idx_addPage('newvalue');
+        $this->indexer->addMetaKeys('newvalue', array('mkey' => array('new_value')));
+
+        saveWikiText('oldvalue', 'Test page', '');
+        idx_addPage('oldvalue');
+        $this->indexer->addMetaKeys('oldvalue', array('mkey' => array('old_value')));
+
+        $this->indexer->renameMetaValue('mkey', 'old_value', 'new_value');
+        $query = 'old_value';
+        $this->assertEquals(array(), $this->indexer->lookupKey('mkey', $query), 'Page can still be found under old value.');
+        $query = 'new_value';
+        $result = $this->indexer->lookupKey('mkey', $query);
+        $this->assertContains($this->old_id, $result, 'Page with both values can\'t be found anymore');
+        $this->assertContains('newvalue', $result, 'Page with new value can\'t be found anymore');
+        $this->assertContains('oldvalue', $result, 'Page with only the old value can\'t be found anymore');
+    }
+}