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.viewer.restfulobjects.applib;
  
  import java.io.IOException;
  import java.util.Iterator;
  import java.util.Map.Entry;
  
  import org.junit.jupiter.api.Test;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.CoreMatchers.not;
  import static org.hamcrest.CoreMatchers.nullValue;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  import static org.apache.causeway.viewer.restfulobjects.applib.JsonFixture.readJson;
  
  class JsonRepresentationTest_streamMapEntries {
  
      private JsonRepresentation jsonRepresentation;
  
      @Test
      void forJsonRepresentation() throws IOException {
          jsonRepresentation = new JsonRepresentation(readJson("map.json"));
          final Iterator<Entry<String, JsonRepresentation>> mapIterator =
                  jsonRepresentation.streamMapEntries()
                  .iterator();
  
          for (int i = 0; i < jsonRepresentation.asJsonNode().size(); i++) {
              assertThat(mapIterator.hasNext(), is(true));
  
              var next = mapIterator.next();
              assertThat(next.getKey(), is(not(nullValue())));
          }
          assertThat(mapIterator.hasNext(), is(false));
      }
  
  }
  