content: /*
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *        http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   */
  package org.apache.causeway.testing.unittestsupport.applib.assertions;
  
  /**
   * @since 2.0 {@index}
   */
  public final class Asserting {
  
      private Asserting() {
      }
  
      public static <T> T assertType(Object o, Class<T> type) {
          if(o == null) {
              throw new AssertionError("Object is null");
          }
          if(!type.isAssignableFrom(o.getClass())) {
              throw new AssertionError(
                      String.format("Object %s (%s) is not an instance of %s", o.getClass().getName(), o.toString(), type));
          }
          return type.cast(o);
      }
  }
  