Checking file extension must be done after checking parent directory existence. (#16)

Author: jawira

src/VisualizerTask.php

@@ -324,18 +324,18 @@ protected function resolveDestination(string $buildfilePath, string $format, ?st
             $destination .= DIRECTORY_SEPARATOR . $buildfileInfo['filename'] . '.' . $format;
         }
 
-        // Adding right extension if necessary
-        if (!StringHelper::endsWith(".$format", $destination)) {
-            $destination .= ".$format";
-        }
-
         // Parent directory must exist
         if (!is_dir(dirname($destination))) {
             $exceptionMessage = "Directory '$destination' is invalid";
             $this->log($exceptionMessage, Project::MSG_ERR);
             throw new BuildException(sprintf($exceptionMessage, $destination));
         }
 
+        // Adding right extension if necessary
+        if (!StringHelper::endsWith(".$format", $destination)) {
+            $destination .= ".$format";
+        }
+
         return $destination;
     }