1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 package java.util.stream;

    24 

    25 import static org.testng.Assert.assertNotNull;

    26 import static org.testng.Assert.assertTrue;

    27 

    28 public final class ThowableHelper {

    29 

    30     public static void checkException(Class<? extends Exception> ce, Runnable r) {

    31         Exception caught = null;

    32         try {

    33             r.run();

    34         } catch (Exception e) {

    35             caught = e;

    36         }

    37 

    38         assertNotNull(caught);

    39         assertTrue(ce.isInstance(caught));

    40     }

    41 

    42     public static void checkNPE(Runnable r) {

    43         checkException(NullPointerException.class, r);

    44     }

    45 

    46     public static void checkISE(Runnable r) {

    47         checkException(IllegalStateException.class, r);

    48     }

    49 }