JSONTest.java

/*
Copyright 2011, Lightbox Technologies, Inc

Licensed 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 com.lightboxtechnologies.spectrum;

import org.junit.Test;
import static org.junit.Assert.*;

import java.util.Map;
import java.util.HashMap;

/**
 * @author Joel Uckelman
 */
public class JSONTest {
  @Test(expected=JSON.DataException.class)
  public void testGetAsNullKey() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    JSON.getAs(json, null, String.class);
  }

  @Test(expected=JSON.DataException.class)
  public void testGetAsNullValue() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    final String key = "foo";
    json.put(key, null);
    JSON.getAs(json, key, String.class);
  }

  @Test(expected=JSON.DataException.class)
  public void testGetAsMissingKey() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    final String key = "foo";
    JSON.getAs(json, key, String.class);
  }

  @Test(expected=JSON.DataException.class)
  public void testGetAsTypeMismatch() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    final String key = "foo";
    json.put(key, 42);
    JSON.getAs(json, key, Map.class);
  }

  @Test
  public void testGetAsOk() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    final String key = "foo";
    final Integer val = 42;
    json.put(key, val);
    assertEquals(val, JSON.getAs(json, key, Integer.class));
  }

  @Test
  public void testGetNonNullOk() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    final String key = "foo";
    json.put(key, 42);
    assertTrue(JSON.getNonNull(json, key) != null);
  }

  @Test(expected=JSON.DataException.class)
  public void testGetNonNullNullKey() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    JSON.getNonNull(json, null);
  }

  @Test(expected=JSON.DataException.class)
  public void testGetNonNullNullValue() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    final String key = "foo";
    json.put(key, null);
    JSON.getNonNull(json, key);
  }

  @Test(expected=JSON.DataException.class)
  public void testGetNonNullMissingKey() throws JSON.DataException {
    final Map<String,Object> json = new HashMap<String,Object>();
    final String key = "foo";
    JSON.getNonNull(json, key);
  }
}