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 */
016package com.googlecode.catchexception.throwable.apis;
017
018import com.googlecode.catchexception.throwable.CatchThrowable;
019import com.googlecode.catchexception.throwable.ThrowableNotThrownAssertionError;
020
021class 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}