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<title>[53928] branches/6.0/tests/phpunit/tests/blocks/getBlockTemplates.php: Editor: Ensure `get_block_templates()` returns unique templates or template parts.</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/53928">53928</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/53928","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>SergeyBiryukov</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2022-08-23 14:54:57 +0000 (Tue, 23 Aug 2022)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Editor: Ensure `get_block_templates()` returns unique templates or template parts.
The function was using the `array_column()` PHP function on an array of objects, which works as expected on PHP 7 or later, but not on PHP 5.6.
This resulted in customized templates being listed multiple times on the Templates and Template Parts screens, and being repeatedly added between lists when switching between the screens.
The issue is now resolved by replacing `array_column()` with the `wp_list_pluck()` WordPress core function, which provides consistent behavior beetween PHP versions.
Reference: [https://github.com/php/php-src/blob/PHP-7.0.0/UPGRADING#L626 PHP 7.0 Upgrade Notes: array_column()].
Props uofaberdeendarren, antonvlasenko, ironprogrammer, jonmackintosh, costdev, hellofromTonya, swissspidy, rudlinkon.
Merges <a href="https://core.trac.wordpress.org/changeset/53927">[53927]</a> to the 6.0 branch.
Fixes <a href="https://core.trac.wordpress.org/ticket/56271">#56271</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches60srcwpincludesblocktemplateutilsphp">branches/6.0/src/wp-includes/block-template-utils.php</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#branches60testsphpunittestsblocksgetBlockTemplatesphp">branches/6.0/tests/phpunit/tests/blocks/getBlockTemplates.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#branches60">branches/6.0/</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/6.0
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- branches/6.0 2022-08-23 14:50:56 UTC (rev 53927)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/6.0 2022-08-23 14:54:57 UTC (rev 53928)
</ins><a id="branches60"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/6.0</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43747,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43785,43790-43806,43808-43821,43825,43828,43830-43834,43836-43843,43846-43863,43867-43889,43891-43894,43897-43905,43908-43909,43911-43929,43931-43942,43946-43947,43949-43956,43959-43964,43967-43969,43988,43994,44014,44017,44047,44183,44185,44187-44206,44208-44213,44231-44232,44235,44248,44284,44287-44288
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.5:49373-49379,49381
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.8:51889
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:53349,53352-53354,53358,53360,53362,53366,53368,53370,53372-53373,53375,53377-53378,53382-53383,53388,53402-53404,53409,53413,53416,53418-53421,53430,53437,53439,53442,53447-53448,53496,53540,53568,53581-53582,53588-53589,53592-53593,53631,53644,53646,53657,53659,53663,53665,53692,53704,53718,53725,53737,53793,53924
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/trunk:53349,53352-53354,53358,53360,53362,53366,53368,53370,53372-53373,53375,53377-53378,53382-53383,53388,53402-53404,53409,53413,53416,53418-53421,53430,53437,53439,53442,53447-53448,53496,53540,53568,53581-53582,53588-53589,53592-53593,53631,53644,53646,53657,53659,53663,53665,53692,53704,53718,53725,53737,53793,53924,53927
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches60srcwpincludesblocktemplateutilsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/6.0/src/wp-includes/block-template-utils.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/6.0/src/wp-includes/block-template-utils.php 2022-08-23 14:50:56 UTC (rev 53927)
+++ branches/6.0/src/wp-includes/block-template-utils.php 2022-08-23 14:54:57 UTC (rev 53928)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -705,7 +705,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $is_not_custom = false === array_search(
</span><span class="cx" style="display: block; padding: 0 10px"> wp_get_theme()->get_stylesheet() . '//' . $template_file['slug'],
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- array_column( $query_result, 'id' ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ wp_list_pluck( $query_result, 'id' ),
</ins><span class="cx" style="display: block; padding: 0 10px"> true
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> $fits_slug_query =
</span></span></pre></div>
<a id="branches60testsphpunittestsblocksgetBlockTemplatesphpfromrev53927trunktestsphpunittestsblocksgetBlockTemplatesphp"></a>
<div class="copfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Copied: branches/6.0/tests/phpunit/tests/blocks/getBlockTemplates.php (from rev 53927, trunk/tests/phpunit/tests/blocks/getBlockTemplates.php)</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/6.0/tests/phpunit/tests/blocks/getBlockTemplates.php (rev 0)
+++ branches/6.0/tests/phpunit/tests/blocks/getBlockTemplates.php 2022-08-23 14:54:57 UTC (rev 53928)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,116 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * @group block-templates
+ *
+ * @covers ::get_block_templates
+ */
+class Tests_Blocks_GetBlockTemplates extends WP_UnitTestCase {
+
+ const TEST_THEME = 'block-theme';
+
+ /**
+ * @var WP_Post
+ */
+ private static $template;
+
+ /**
+ * @var WP_Post
+ */
+ private static $template_part;
+
+ public static function set_up_before_class() {
+ parent::set_up_before_class();
+
+ /*
+ * This template has to have the same ID ("block-theme/index") as the template
+ * that is shipped with the "block-theme" theme. This is needed for testing purposes.
+ */
+ static::$template = self::factory()->post->create_and_get(
+ array(
+ 'post_type' => 'wp_template',
+ 'post_name' => 'index',
+ 'tax_input' => array(
+ 'wp_theme' => array(
+ static::TEST_THEME,
+ ),
+ ),
+ )
+ );
+
+ wp_set_post_terms( static::$template->ID, static::TEST_THEME, 'wp_theme' );
+
+ /*
+ * This template part has to have the same ID ("block-theme/small-header") as the template part
+ * that is shipped with the "block-theme" theme. This is needed for testing purposes.
+ */
+ self::$template_part = self::factory()->post->create_and_get(
+ array(
+ 'post_type' => 'wp_template_part',
+ 'post_name' => 'small-header',
+ 'tax_input' => array(
+ 'wp_theme' => array(
+ static::TEST_THEME,
+ ),
+ 'wp_template_part_area' => array(
+ WP_TEMPLATE_PART_AREA_HEADER,
+ ),
+ ),
+ )
+ );
+
+ wp_set_post_terms( self::$template_part->ID, WP_TEMPLATE_PART_AREA_HEADER, 'wp_template_part_area' );
+ wp_set_post_terms( self::$template_part->ID, static::TEST_THEME, 'wp_theme' );
+ }
+
+ public static function tear_down_after_class() {
+ wp_delete_post( static::$template->ID );
+ wp_delete_post( static::$template_part->ID );
+
+ parent::tear_down_after_class();
+ }
+
+ public function set_up() {
+ parent::set_up();
+ switch_theme( static::TEST_THEME );
+ }
+
+ /**
+ * @ticket 56271
+ *
+ * @dataProvider data_get_block_templates_returns_unique_entities
+ *
+ * @param string $template_type The template type.
+ * @param string $original_template_id ID (slug) of the default entity.
+ * @param string $error_message An error message to display if the test fails.
+ */
+ public function test_get_block_templates_returns_unique_entities( $template_type, $original_template_id, $error_message ) {
+ $original_template = _get_block_template_file( $template_type, $original_template_id );
+ $this->assertNotEmpty( $original_template, 'An original (non-duplicate) template must exist for this test to work correctly.' );
+
+ $block_templates = get_block_templates( array(), $template_type );
+ $this->assertNotEmpty( $block_templates, 'get_block_templates() must return a non-empty value.' );
+
+ $block_template_ids = wp_list_pluck( $block_templates, 'id' );
+ $this->assertSame( count( array_unique( $block_template_ids ) ), count( $block_template_ids ), $error_message );
+ }
+
+ /**
+ * Data provider for test_get_block_templates_returns_unique_entities().
+ *
+ * @return array
+ */
+ public function data_get_block_templates_returns_unique_entities() {
+ return array(
+ 'wp_template template type' => array(
+ 'template_type' => 'wp_template',
+ 'original_template_id' => 'index',
+ 'error_message' => 'get_block_templates() must return unique templates.',
+ ),
+ 'wp_template_part template type' => array(
+ 'template_type' => 'wp_template_part',
+ 'original_template_id' => 'small-header',
+ 'error_message' => 'get_block_templates() must return unique template parts.',
+ ),
+ );
+ }
+}
</ins></span></pre>
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