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.core.metamodel.commons.matchers;
  
  import org.hamcrest.Description;
  import org.hamcrest.Matcher;
  import org.hamcrest.TypeSafeMatcher;
  
  /**
   * Hamcrest {@link Matcher} implementations.
   *
   */
  public final class CausewayMatchers {
  
      private CausewayMatchers() {
      }
  
      public static Matcher<String> nonEmptyString() {
          return new TypeSafeMatcher<String>() {
              @Override
              public boolean matchesSafely(final String str) {
                  return str != null && str.length() > 0;
              }
  
              @Override
              public void describeTo(final Description description) {
                  description.appendText("a non empty string");
              }
  
          };
      }
  
      public static Matcher<Class<?>> classEqualTo(final Class<?> operand) {
  
          class ClassEqualsMatcher extends TypeSafeMatcher<Class<?>> {
              private final Class<?> clazz;
  
              public ClassEqualsMatcher(final Class<?> clazz) {
                  this.clazz = clazz;
              }
  
              @Override
              public boolean matchesSafely(final Class<?> arg) {
                  return clazz == arg;
              }
  
              @Override
              public void describeTo(final Description description) {
                  description.appendValue(clazz);
              }
          }
  
          return new ClassEqualsMatcher(operand);
      }
  
  }
  