Tests: Avoid an infinite loop in Spy_REST_Server if a non-existing …

…method is called.

Follow-up to [34928].

Props xknown, joemcgill.
Fixes #59601.

git-svn-id: https://develop.svn.wordpress.org/trunk@57133 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/includes/spy-rest-server.php

@@ -25,6 +25,10 @@ public function get_raw_endpoint_data() {
 	 * @return mixed
 	 */
 	public function __call( $method, $args ) {
+		if ( ! method_exists( $this, $method ) ) {
+			throw new Error( sprintf( 'Call to undefined method %s::%s()', get_class( $this ), $method ) );
+		}
+
 		return call_user_func_array( array( $this, $method ), $args );
 	}
 

tests/phpunit/tests/rest-api.php

@@ -31,6 +31,11 @@ public function filter_wp_rest_server_class( $class_name ) {
 		return 'Spy_REST_Server';
 	}
 
+	public function test_rest_get_server_fails_with_undefined_method() {
+		$this->expectException( Error::class );
+		rest_get_server()->does_not_exist();
+	}
+
 	/**
 	 * Checks that the main classes are loaded.
 	 */