X-Git-Url: http://wamblee.org/gitweb/?a=blobdiff_plain;f=support%2Fgeneral%2Fsrc%2Ftest%2Fjava%2Forg%2Fwamblee%2Ftest%2FAssertionUtils.java;h=767f679c9be45026010a959110afdf7328aaac54;hb=c210d3c212308d3c5a84f4c19e84a95175e4f172;hp=fc4040721d9aabeffac4017ad0b5f4907caa0529;hpb=2acd9d7b630b9978a504a5a415f25ea2efe18c10;p=utils

diff --git a/support/general/src/test/java/org/wamblee/test/AssertionUtils.java b/support/general/src/test/java/org/wamblee/test/AssertionUtils.java
index fc404072..767f679c 100644
--- a/support/general/src/test/java/org/wamblee/test/AssertionUtils.java
+++ b/support/general/src/test/java/org/wamblee/test/AssertionUtils.java
@@ -137,4 +137,27 @@ public final class AssertionUtils {
                     aExpectedMap.get(key), aActual.get(key));
         }
     }
+   
+    public static interface ErroneousCode { 
+    	void run() throws Exception; 
+    }
+    
+    /** 
+     * Asserts that an exception occurs.
+     * @param aRunnable Test cases should create a subclass of this which contains the 
+     * code that should throw an exception.   
+     * @param aType Type of exception that is expected.   
+     */
+    public static void assertException(ErroneousCode aObject, Class aType) { 
+    	try { 
+    		aObject.run();
+    	} catch (Throwable t) { 
+    		if ( aType.isInstance(t)) { 
+    			return; // ok 
+    		}
+    		else { 
+    			throw new RuntimeException(t);
+    		}
+    	}
+    }
 }