putenv in test runner.

laravel/cli/tasks/test/runner.php

@@ -88,6 +88,7 @@ class Runner extends Task {
 		// strings with spaces inside should be wrapped in quotes.
 		$esc_path = escapeshellarg($path);
 
+		putenv('LARAVEL_ENV='.Request::env());
 		passthru('LARAVEL_ENV='.Request::env().' phpunit --configuration '.$esc_path, $status);
 
 		@unlink($path);