add test

includes/classes/Elasticsearch.php

@@ -1730,14 +1730,14 @@ public function add_elasticpress_version_to_user_agent( $user_agent ) {
 	 * Query logging. Don't log anything to the queries property when
 	 * WP_DEBUG is not enabled. Calls action 'ep_add_query_log' if you
 	 * want to access the query outside of the ElasticPress plugin. This
-	 * runs regardless of debufg settings.
+	 * runs regardless of debug settings.
 	 *
 	 * @param array $query Query to log.
 	 */
 	protected function add_query_log( $query ) {
-		$wp_debug      = defined( 'WP_DEBUG' ) && WP_DEBUG;
-		$wp_ep_debug   = defined( 'WP_EP_DEBUG' ) && WP_EP_DEBUG;
-		
+		$wp_debug    = defined( 'WP_DEBUG' ) && WP_DEBUG;
+		$wp_ep_debug = defined( 'WP_EP_DEBUG' ) && WP_EP_DEBUG;
+
 		/**
 		 * Filter query logging. Don't log anything to the queries property when true.
 		 *

tests/php/TestElasticsearch.php

@@ -378,4 +378,35 @@ public function testGetIndicesComparison() {
 		];
 		$this->assertEqualsCanonicalizing( $expected, \ElasticPress\Elasticsearch::factory()->get_indices_comparison() );
 	}
+
+	/**
+	 * Test the ep_disable_query_logging filter
+	 *
+	 * @since 5.2.0
+	 * @group elasticsearch
+	 */
+	public function testEpDisableQueryLoggingFilter() {
+		$elasticsearch = new \ElasticPress\Elasticsearch();
+
+		$reflection = new \ReflectionClass( $elasticsearch );
+		$property   = $reflection->getProperty( 'queries' );
+		$property->setAccessible( true );
+		$method = $reflection->getMethod( 'add_query_log' );
+		$method->setAccessible( true );
+
+		$example_query = [ 'example_query' ];
+
+		add_filter( 'ep_disable_query_logging', '__return_true' );
+
+		$method->invokeArgs( $elasticsearch, [ $example_query ] );
+		$this->assertEmpty( $property->getValue( $elasticsearch ) );
+
+		remove_filter( 'ep_disable_query_logging', '__return_true' );
+
+		$method->invokeArgs( $elasticsearch, [ $example_query ] );
+
+		$queries = $property->getValue( $elasticsearch );
+		$this->assertCount( 1, $queries );
+		$this->assertSame( $example_query, $queries[0] );
+	}
 }