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<title>[37654] trunk/tests/phpunit/includes/install.php: Tests: Disable `foreign_key_checks` while dropping existing tables.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/37654">37654</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/37654","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>pento</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2016-06-08 03:03:16 +0000 (Wed, 08 Jun 2016)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Tests: Disable `foreign_key_checks` while dropping existing tables.
To ensure a clean run, the test suite drops all tables before installing, by simply looping over the table list and dropping them if they exist. This works well for Core, but may fail when a plugin has created a table with foreign key constraints in a previous test run.
Many plugins choose to base their test suite on the Core setup, so making life easier for them is a plus, even if Core doesn't directly need this change.
Props javorszky.
Fixes <a href="https://core.trac.wordpress.org/ticket/37046">#37046</a>.</pre>
<h3>Modified Paths</h3>
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<li><a href="#trunktestsphpunitincludesinstallphp">trunk/tests/phpunit/includes/install.php</a></li>
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<h3>Diff</h3>
<a id="trunktestsphpunitincludesinstallphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/tests/phpunit/includes/install.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/includes/install.php 2016-06-08 03:02:34 UTC (rev 37653)
+++ trunk/tests/phpunit/includes/install.php 2016-06-08 03:03:16 UTC (rev 37654)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -40,6 +40,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> echo "Installing..." . PHP_EOL;
</span><span class="cx" style="display: block; padding: 0 10px">
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$wpdb->query( "SET foreign_key_checks = 0" );
</ins><span class="cx" style="display: block; padding: 0 10px"> foreach ( $wpdb->tables() as $table => $prefixed_table ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $wpdb->query( "DROP TABLE IF EXISTS $prefixed_table" );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -51,6 +52,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $multisite )
</span><span class="cx" style="display: block; padding: 0 10px"> $wpdb->$table = $prefixed_table;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$wpdb->query( "SET foreign_key_checks = 1" );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // Prefill a permalink structure so that WP doesn't try to determine one itself.
</span><span class="cx" style="display: block; padding: 0 10px"> add_action( 'populate_options', '_set_default_permalink_structure_for_tests' );
</span></span></pre>
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