|  | // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file | 
|  | // for details. All rights reserved. Use of this source code is governed by a | 
|  | // BSD-style license that can be found in the LICENSE file. | 
|  |  | 
|  | // @dart = 2.9 | 
|  |  | 
|  | import "package:expect/expect.dart"; | 
|  |  | 
|  | class ExceptionTest { | 
|  | static testMain() { | 
|  | int i = 0; | 
|  | try { | 
|  | throw "Hello"; | 
|  | } on String catch (s) { | 
|  | print(s); | 
|  | i += 10; | 
|  | } | 
|  |  | 
|  | try { | 
|  | throw "bye"; | 
|  | } on String catch (s) { | 
|  | print(s); | 
|  | i += 10; | 
|  | } | 
|  | Expect.equals(20, i); | 
|  |  | 
|  | bool correctCatch = false; | 
|  | try { | 
|  | // This throws NullThrownError | 
|  | throw null; | 
|  | } on String catch (s) { | 
|  | correctCatch = false; | 
|  | } on NullThrownError catch (e) { | 
|  | correctCatch = true; | 
|  | } catch (x) { | 
|  | correctCatch = false; | 
|  | } | 
|  | Expect.isTrue(correctCatch); | 
|  | } | 
|  | } | 
|  |  | 
|  | main() { | 
|  | ExceptionTest.testMain(); | 
|  | } |