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 org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.CoreMatchers.nullValue;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.jupiter.api.Assertions.fail;
  
  import static org.apache.causeway.viewer.restfulobjects.applib.JsonFixture.readJson;
  
  class JsonRepresentationTest_getDouble {
  
      private JsonRepresentation jsonRepresentation;
  
      @BeforeEach
      public void setUp() throws Exception {
          jsonRepresentation = new JsonRepresentation(readJson("map.json"));
      }
  
      @Test
      public void happyCase() throws IOException {
          assertThat(jsonRepresentation.getDouble("aDouble"), is(12345678901234534.3242));
      }
  
      @Test
      public void forNonExistent() throws IOException {
          assertThat(jsonRepresentation.getDouble("doesNotExist"), is(nullValue()));
      }
  
      @Test
      public void forValueButNotAnLong() throws IOException {
          try {
              jsonRepresentation.getDouble("aString");
              fail();
          } catch (final IllegalArgumentException e) {
              assertThat(e.getMessage(), is("'aString' is not a double"));
          }
      }
  
      @Test
      public void forMap() throws IOException {
          try {
              jsonRepresentation.getDouble("aSubMap");
              fail();
          } catch (final IllegalArgumentException e) {
              assertThat(e.getMessage(), is("'aSubMap' is not a double"));
          }
      }
  
      @Test
      public void forList() throws IOException {
          try {
              jsonRepresentation.getDouble("aSubList");
              fail();
          } catch (final IllegalArgumentException e) {
              assertThat(e.getMessage(), is("'aSubList' is not a double"));
          }
      }
  
      @Test
      public void forMultipartKey() throws IOException {
          assertThat(jsonRepresentation.getDouble("aSubMap.aDouble"), is(12345678901234534.4567));
      }
  
  }
  