adds lazy file checking to allow for a widget to be created without a

file such that it'll be assigned laters

Author: henderjon

src/Widget.php

@@ -40,6 +40,9 @@ function __toString(){
 	 * for docs, check \Chevron\Widgets\WidgetInterface
 	 */
 	function render(){
+		if( !file_exists($this->file) ){
+			throw new \RuntimeException("Not a file: '{$this->file}'");
+		}
 		return require($this->file);
 	}
 
@@ -61,10 +64,6 @@ function __get($key){
 	 * change the base layout
 	 */
 	protected function setFile($file){
-		if( !file_exists($file) ){
-			throw new \InvalidArgumentException("Not a file: {$file}");
-		}
-
 		$this->file = $file;
 	}
 

tests/PHPUnit/WidgetTest.php

@@ -10,11 +10,12 @@ function test___construct(){
 	}
 
 	/**
-	 * @expectedException \InvalidArgumentException
+	 * @expectedException \RuntimeException
 	 */
 	function test___construct_exception(){
 		$widget = new Widget(__DIR__."/exampleNOTView.php");
 		$this->assertTrue(($widget InstanceOf Widget));
+		$widget->render();
 	}
 
 	function test___get(){