001    /**
002     * Copyright (C) 2011 rwoo@gmx.de
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *         http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package com.googlecode.catchexception.throwable.apis;
017    
018    import com.googlecode.catchexception.throwable.CatchThrowable;
019    import com.googlecode.catchexception.throwable.ThrowableNotThrownAssertionError;
020    
021    class CatchThrowableUtils {
022    
023      @SuppressWarnings({"unchecked", "rawtypes"})
024      public static void thenThrown(Class actualThrowableClazz) {
025        Throwable e = CatchThrowable.caughtThrowable();
026        if (e == null) {
027          // no throwable caught -> assertion failed
028          throw new ThrowableNotThrownAssertionError(actualThrowableClazz);
029        } else if (!actualThrowableClazz.isAssignableFrom(CatchThrowable.caughtThrowable().getClass())) {
030          // caught throwable is of wrong type -> assertion failed
031          throw new ThrowableNotThrownAssertionError(actualThrowableClazz, e);
032        } else {
033          // the caught throwable is of the expected type -> nothing to do :-)
034        }
035      }
036    
037    
038    }