add test

tests/php/TestQueryLogger.php

@@ -506,6 +506,30 @@ public function testIsQueryErrorWithStatusCode( $expected, $status_code ) {
 		$this->assertSame( $expected, $method->invokeArgs( $query_logger, [ $query ] ) );
 	}
 
+	/**
+	 * Test the ep_disable_query_logging filter
+	 *
+	 * @group queryLogger
+	 */
+	public function testEpDisableQueryLoggingFilter() {
+		$query_logger = $this->getMockBuilder( QueryLogger::class )
+			->setMethods( [ 'add_query_log' ] )
+			->getMock();
+
+		add_filter( 'ep_disable_query_logging', '__return_true' );
+
+		$query_logger->add_query_log( [ 'query' => 'test' ] );
+
+		$class  = new \ReflectionClass( $query_logger );
+		$property = $class->getProperty( 'queries' );
+		$property->setAccessible( true );
+		$queries = $property->getValue( $query_logger );
+
+		$this->assertEmpty( $queries );
+
+		remove_filter( 'ep_disable_query_logging', '__return_true' );
+	}
+
 	/**
 	 * Data provider for the testMaybeLogDeleteIndex method
 	 *