core/src/test/java/org/jclouds/json/JsonTest.java - jclouds - Git at Google

 /*
  * 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.jclouds.json;

 import static com.google.common.io.BaseEncoding.base16;
 import static com.google.common.primitives.Bytes.asList;
 import static org.testng.Assert.assertEquals;

 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.nio.charset.Charset;
 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 import java.util.Set;

 import org.jclouds.javax.annotation.Nullable;
 import org.jclouds.json.config.GsonModule;
 import org.jclouds.json.config.GsonModule.DefaultExclusionStrategy;
 import org.testng.annotations.Test;

 import com.google.auto.value.AutoValue;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.ImmutableSet;
 import com.google.gson.FieldAttributes;
 import com.google.gson.Gson;
 import com.google.gson.TypeAdapter;
 import com.google.gson.TypeAdapterFactory;
 import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.JsonReader;
 import com.google.gson.stream.JsonWriter;
 import com.google.inject.AbstractModule;
 import com.google.inject.Guice;
 import com.google.inject.Provides;
 import com.google.inject.TypeLiteral;

 @Test
 public class JsonTest {
    private Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

    private static class ObjectNoDefaultConstructor {
       private final String stringValue;
       private final int intValue;

       public ObjectNoDefaultConstructor(String stringValue, int intValue) {
          this.stringValue = stringValue;
          this.intValue = intValue;
       }

       @Override
       public int hashCode() {
          final int prime = 31;
          int result = 1;
          result = prime * result + intValue;
          result = prime * result + ((stringValue == null) ? 0 : stringValue.hashCode());
          return result;
       }

       @Override
       public boolean equals(Object obj) {
          if (this == obj)
             return true;
          if (obj == null)
             return false;
          if (getClass() != obj.getClass())
             return false;
          ObjectNoDefaultConstructor other = (ObjectNoDefaultConstructor) obj;
          if (intValue != other.intValue)
             return false;
          if (stringValue == null) {
             if (other.stringValue != null)
                return false;
          } else if (!stringValue.equals(other.stringValue))
             return false;
          return true;
       }
    }

    public void testObjectNoDefaultConstructor() {
       ObjectNoDefaultConstructor obj = new ObjectNoDefaultConstructor("foo", 1);
       assertEquals(json.toJson(obj), "{\"stringValue\":\"foo\",\"intValue\":1}");
       ObjectNoDefaultConstructor obj2 = json.fromJson(json.toJson(obj), ObjectNoDefaultConstructor.class);
       assertEquals(obj2, obj);
       assertEquals(json.toJson(obj2), json.toJson(obj));
    }

    static class ExcludeStringValue implements DefaultExclusionStrategy {
       public boolean shouldSkipClass(Class<?> clazz) {
         return false;
       }

       public boolean shouldSkipField(FieldAttributes f) {
         return f.getName().equals("stringValue");
       }
    }

    public void testExcluder() {
       Json excluder = Guice.createInjector(new GsonModule(), new AbstractModule() {
          protected void configure() {
             bind(DefaultExclusionStrategy.class).to(ExcludeStringValue.class);
          }
       }).getInstance(Json.class);
       ObjectNoDefaultConstructor obj = new ObjectNoDefaultConstructor("foo", 1);
       assertEquals(excluder.toJson(obj), "{\"intValue\":1}");
    }

    private static class EnumInside {
       private static enum Test {
          FOO, BAR;
       }

       private Test enumValue;
    }

    private static class ByteList {
       List<Byte> checksum;
    }

    public void testByteList() {
       ByteList bl = new ByteList();
       bl.checksum = asList(base16().lowerCase().decode("1dda05ed139664f1f89b9dec482b77c0"));
       assertEquals(json.toJson(bl), "{\"checksum\":\"1dda05ed139664f1f89b9dec482b77c0\"}");
       assertEquals(json.fromJson(json.toJson(bl), ByteList.class).checksum, bl.checksum);
    }

    public void testPropertiesSerializesDefaults() {
       Properties props = new Properties();
       props.put("string", "string");
       props.put("number", "1");
       props.put("boolean", "true");
       assertEquals(json.toJson(props), "{\"string\":\"string\",\"boolean\":\"true\",\"number\":\"1\"}");
       Properties props3 = new Properties(props);
       assertEquals(json.toJson(props3), "{\"string\":\"string\",\"boolean\":\"true\",\"number\":\"1\"}");
       Properties props2 = json.fromJson(json.toJson(props), Properties.class);
       assertEquals(props2, props);
       assertEquals(json.toJson(props2), json.toJson(props));
    }

    public void testMapStringObjectWithAllValidValuesOneDeep() {
       Map<String, Object> map = ImmutableMap.<String, Object>builder()
          .put("string", "string")
          .put("map", ImmutableMap.of("key", "value"))
          .put("list", ImmutableList.of("key", "value"))
          .put("boolean", true)
          .put("number", 1.0)
          .build();
       assertEquals(json.toJson(map),
                "{\"string\":\"string\",\"map\":{\"key\":\"value\"},\"list\":[\"key\",\"value\"],\"boolean\":true,\"number\":1.0}");
       Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
       }.getType());
       assertEquals(map2, map);
       assertEquals(json.toJson(map2), json.toJson(map));
    }

    public void testMapStringObjectWithNumericalKeysConvertToStrings() {
       Map<String, Object> map = ImmutableMap.<String, Object> of("map", ImmutableMap.of(1, "value"));
       assertEquals(json.toJson(map), "{\"map\":{\"1\":\"value\"}}");
       Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
       }.getType());
       // note conversion.. ensures valid
       assertEquals(map2, ImmutableMap.<String, Object> of("map", ImmutableMap.of("1", "value")));
       assertEquals(json.toJson(map2), json.toJson(map));
    }

    public void testMapStringObjectWithBooleanKeysConvertToStrings() {
       Map<String, Object> map = ImmutableMap.<String, Object> of("map", ImmutableMap.of(true, "value"));
       assertEquals(json.toJson(map), "{\"map\":{\"true\":\"value\"}}");
       Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
       }.getType());
       // note conversion.. ensures valid
       assertEquals(map2, ImmutableMap.<String, Object> of("map", ImmutableMap.of("true", "value")));
       assertEquals(json.toJson(map2), json.toJson(map));
    }

    public void testDeserializeEnum() {
       assertEquals(json.fromJson("{enumValue : \"FOO\"}", EnumInside.class).enumValue, EnumInside.Test.FOO);
    }

    @Test(expectedExceptions = IllegalArgumentException.class)
    public void testDeserializeEnumWhenBadValue() {
       assertEquals(json.fromJson("{enumValue : \"s\"}", EnumInside.class).enumValue, EnumInside.Test.FOO);
    }

    private static class EnumInsideWithParser {
       private static enum Test {
          FOO, BAR, UNRECOGNIZED;

          @SuppressWarnings("unused")
          public static Test fromValue(String state) {
             try {
                return valueOf(state);
             } catch (IllegalArgumentException e) {
                return UNRECOGNIZED;
             }
          }
       }

       private Test enumValue;
    }

    public void testDeserializeEnumWithParser() {
       assertEquals(json.fromJson("{enumValue : \"FOO\"}", EnumInsideWithParser.class).enumValue,
                EnumInsideWithParser.Test.FOO);
    }

    public void testDeserializeEnumWithParserAndBadValue() {
       assertEquals(json.fromJson("{enumValue : \"sd\"}", EnumInsideWithParser.class).enumValue,
                EnumInsideWithParser.Test.UNRECOGNIZED);
    }

    @AutoValue
    abstract static class SerializedNamesType {
       abstract String id();

       @Nullable abstract Map<String, String> volumes();

       @SerializedNames({ "Id", "Volumes" })
       private static SerializedNamesType create(String id, Map<String, String> volumes) {
          return new AutoValue_JsonTest_SerializedNamesType(id, volumes);
       }
    }

    public void autoValueSerializedNames() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

       SerializedNamesType resource = SerializedNamesType.create("1234", Collections.<String, String>emptyMap());
       String spinalJson = "{\"Id\":\"1234\",\"Volumes\":{}}";

       assertEquals(json.toJson(resource), spinalJson);
       assertEquals(json.fromJson(spinalJson, SerializedNamesType.class), resource);
    }

    public void autoValueWithBuilder() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

       SerializedNamesWithBuilder resource = SerializedNamesWithBuilder.builder().id("1234").number(2).build();
       String spinalJson = "{\"custom_id_name\":\"1234\",\"number\":2}";

       assertEquals(json.toJson(resource), spinalJson);
       assertEquals(json.fromJson(spinalJson, SerializedNamesWithBuilder.class), resource);
    }

    public void autoValueWithBuilderNested() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

       SerializedNamesNestedWithBuilder resource = SerializedNamesNestedWithBuilder.builder().id("1234")
             .snwb(ImmutableList.of(SerializedNamesWithBuilder.builder().id("5678").number(1).build())).build();

       String spinalJson = "{\"nested_id_name\":\"1234\",\"serialized_name_with_builder\":[{\"custom_id_name\":\"5678\",\"number\":1}]}";

       assertEquals(json.toJson(resource), spinalJson);
       assertEquals(json.fromJson(spinalJson, SerializedNamesNestedWithBuilder.class), resource);
    }

    public void autoValueWithBuilderMissingNested() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

       SerializedNamesNestedWithBuilder resource = SerializedNamesNestedWithBuilder.builder().id("1234")
             .snwb(ImmutableList.<SerializedNamesWithBuilder>of()).build();

       String spinalJson = "{\"nested_id_name\":\"1234\",\"serialized_name_with_builder\":[]}";

       assertEquals(json.toJson(resource), spinalJson);
       assertEquals(json.fromJson(spinalJson, SerializedNamesNestedWithBuilder.class), resource);
    }

    @AutoValue
    abstract static class SerializedNamesNestedWithBuilder {
       public abstract String getId();
       @Nullable
       public abstract List<SerializedNamesWithBuilder> getSnwb();

       public static Builder builder() {
          return new AutoValue_JsonTest_SerializedNamesNestedWithBuilder.Builder();
       }
       public abstract Builder toBuilder();

       @AutoValue.Builder
       public interface Builder {
          Builder id(String id);
          Builder snwb(List<SerializedNamesWithBuilder> snwb);
          SerializedNamesNestedWithBuilder build();
       }

       @SerializedNames({"nested_id_name", "serialized_name_with_builder"})
       private static SerializedNamesNestedWithBuilder create(String id, List<SerializedNamesWithBuilder> snwb) {
          return builder().id(id).snwb(snwb).build();
       }
    }

    @AutoValue
    abstract static class SerializedNamesWithBuilder {
       public abstract String getId();
       public abstract int getNumber();

       public static Builder builder() {
          return new AutoValue_JsonTest_SerializedNamesWithBuilder.Builder();
       }
       public abstract Builder toBuilder();

       @AutoValue.Builder
       public interface Builder {
          Builder id(String id);
          Builder number(int number);
          SerializedNamesWithBuilder build();
       }

       @SerializedNames({"custom_id_name", "number"})
       private static SerializedNamesWithBuilder create(String id, int number) {
          return builder().id(id).number(number).build();
       }
    }

    @AutoValue
    abstract static class SerializedNamesTooFewType {
       abstract String id();

       @Nullable abstract Map<String, String> volumes();

       @SerializedNames("Id") // TODO: check things like this with error-prone, not runtime!
       private static SerializedNamesTooFewType create(String id, Map<String, String> volumes) {
          return new AutoValue_JsonTest_SerializedNamesTooFewType(id, volumes);
       }
    }

    /** Common problem. Someone adds a parameter, but forgets to add it to the names list. */
    @Test(expectedExceptions = IllegalStateException.class, expectedExceptionsMessageRegExp = "Incorrect number .*")
    public void autoValueSerializedNames_tooFew() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);
       json.toJson(SerializedNamesTooFewType.create("1234", null));
    }

    public void autoValueSerializedNames_nullValueInJson() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

       assertEquals(json.fromJson("{\"Id\":\"1234\",\"Volumes\":null}", SerializedNamesType.class),
             SerializedNamesType.create("1234", null));
    }

    public void nonUtf8InputStream() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);
       String jsonValue = "{\"stringValue\":\"1234\",\"intValue\":1234}";
       Charset ebcdicCharset = Charset.forName("IBM-1047");
       ByteArrayInputStream inputStream = new ByteArrayInputStream(jsonValue.getBytes(ebcdicCharset));
       assertEquals(json.fromJson(inputStream, ebcdicCharset, ObjectNoDefaultConstructor.class),
               new ObjectNoDefaultConstructor("1234", 1234));
    }

    @AutoValue
    abstract static class NestedSerializedNamesType {
       abstract SerializedNamesType item();
       abstract List<SerializedNamesType> items();

       @SerializedNames({ "Item", "Items" })
       private static NestedSerializedNamesType create(SerializedNamesType item, List<SerializedNamesType> items) {
          return new AutoValue_JsonTest_NestedSerializedNamesType(item, items);
       }
    }

    private final NestedSerializedNamesType nested = NestedSerializedNamesType
          .create(SerializedNamesType.create("1234", Collections.<String, String>emptyMap()),
                Arrays.asList(SerializedNamesType.create("5678", ImmutableMap.of("Foo", "Bar"))));

    public void autoValueSerializedNames_nestedType() {
       Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

       String spinalJson = "{\"Item\":{\"Id\":\"1234\",\"Volumes\":{}},\"Items\":[{\"Id\":\"5678\",\"Volumes\":{\"Foo\":\"Bar\"}}]}";

       assertEquals(json.toJson(nested), spinalJson);
       assertEquals(json.fromJson(spinalJson, NestedSerializedNamesType.class), nested);
    }

    public void autoValueSerializedNames_overriddenTypeAdapterFactory() {
       Json json = Guice.createInjector(new GsonModule(), new AbstractModule() {
          @Override protected void configure() {
          }

          @Provides public Set<TypeAdapterFactory> typeAdapterFactories() {
             return ImmutableSet.<TypeAdapterFactory>of(new NestedSerializedNamesTypeAdapterFactory());
          }
       }).getInstance(Json.class);

       assertEquals(json.toJson(nested), "{\"id\":\"1234\",\"count\":1}");
       assertEquals(json.fromJson("{\"id\":\"1234\",\"count\":1}", NestedSerializedNamesType.class), nested);
    }

    private class NestedSerializedNamesTypeAdapterFactory extends TypeAdapter<NestedSerializedNamesType>
          implements TypeAdapterFactory {

       @Override public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
          if (!(NestedSerializedNamesType.class.isAssignableFrom(typeToken.getRawType()))) {
             return null;
          }
          return (TypeAdapter<T>) this;
       }

       @Override public void write(JsonWriter out, NestedSerializedNamesType value) throws IOException {
          out.beginObject();
          out.name("id").value(value.item().id());
          out.name("count").value(value.items().size());
          out.endObject();
       }

       @Override public NestedSerializedNamesType read(JsonReader in) throws IOException {
          in.beginObject();
          in.nextName();
          in.nextString();
          in.nextName();
          in.nextInt();
          in.endObject();
          return nested;
       }
    }
 }
	/*
	* 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.jclouds.json;

	import static com.google.common.io.BaseEncoding.base16;
	import static com.google.common.primitives.Bytes.asList;
	import static org.testng.Assert.assertEquals;

	import java.io.ByteArrayInputStream;
	import java.io.IOException;
	import java.nio.charset.Charset;
	import java.util.Arrays;
	import java.util.Collections;
	import java.util.List;
	import java.util.Map;
	import java.util.Properties;
	import java.util.Set;

	import org.jclouds.javax.annotation.Nullable;
	import org.jclouds.json.config.GsonModule;
	import org.jclouds.json.config.GsonModule.DefaultExclusionStrategy;
	import org.testng.annotations.Test;

	import com.google.auto.value.AutoValue;
	import com.google.common.collect.ImmutableList;
	import com.google.common.collect.ImmutableMap;
	import com.google.common.collect.ImmutableSet;
	import com.google.gson.FieldAttributes;
	import com.google.gson.Gson;
	import com.google.gson.TypeAdapter;
	import com.google.gson.TypeAdapterFactory;
	import com.google.gson.reflect.TypeToken;
	import com.google.gson.stream.JsonReader;
	import com.google.gson.stream.JsonWriter;
	import com.google.inject.AbstractModule;
	import com.google.inject.Guice;
	import com.google.inject.Provides;
	import com.google.inject.TypeLiteral;

	@Test
	public class JsonTest {
	private Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

	private static class ObjectNoDefaultConstructor {
	private final String stringValue;
	private final int intValue;

	public ObjectNoDefaultConstructor(String stringValue, int intValue) {
	this.stringValue = stringValue;
	this.intValue = intValue;
	}

	@Override
	public int hashCode() {
	final int prime = 31;
	int result = 1;
	result = prime * result + intValue;
	result = prime * result + ((stringValue == null) ? 0 : stringValue.hashCode());
	return result;
	}

	@Override
	public boolean equals(Object obj) {
	if (this == obj)
	return true;
	if (obj == null)
	return false;
	if (getClass() != obj.getClass())
	return false;
	ObjectNoDefaultConstructor other = (ObjectNoDefaultConstructor) obj;
	if (intValue != other.intValue)
	return false;
	if (stringValue == null) {
	if (other.stringValue != null)
	return false;
	} else if (!stringValue.equals(other.stringValue))
	return false;
	return true;
	}
	}

	public void testObjectNoDefaultConstructor() {
	ObjectNoDefaultConstructor obj = new ObjectNoDefaultConstructor("foo", 1);
	assertEquals(json.toJson(obj), "{\"stringValue\":\"foo\",\"intValue\":1}");
	ObjectNoDefaultConstructor obj2 = json.fromJson(json.toJson(obj), ObjectNoDefaultConstructor.class);
	assertEquals(obj2, obj);
	assertEquals(json.toJson(obj2), json.toJson(obj));
	}

	static class ExcludeStringValue implements DefaultExclusionStrategy {
	public boolean shouldSkipClass(Class<?> clazz) {
	return false;
	}

	public boolean shouldSkipField(FieldAttributes f) {
	return f.getName().equals("stringValue");
	}
	}

	public void testExcluder() {
	Json excluder = Guice.createInjector(new GsonModule(), new AbstractModule() {
	protected void configure() {
	bind(DefaultExclusionStrategy.class).to(ExcludeStringValue.class);
	}
	}).getInstance(Json.class);
	ObjectNoDefaultConstructor obj = new ObjectNoDefaultConstructor("foo", 1);
	assertEquals(excluder.toJson(obj), "{\"intValue\":1}");
	}

	private static class EnumInside {
	private static enum Test {
	FOO, BAR;
	}

	private Test enumValue;
	}

	private static class ByteList {
	List<Byte> checksum;
	}

	public void testByteList() {
	ByteList bl = new ByteList();
	bl.checksum = asList(base16().lowerCase().decode("1dda05ed139664f1f89b9dec482b77c0"));
	assertEquals(json.toJson(bl), "{\"checksum\":\"1dda05ed139664f1f89b9dec482b77c0\"}");
	assertEquals(json.fromJson(json.toJson(bl), ByteList.class).checksum, bl.checksum);
	}

	public void testPropertiesSerializesDefaults() {
	Properties props = new Properties();
	props.put("string", "string");
	props.put("number", "1");
	props.put("boolean", "true");
	assertEquals(json.toJson(props), "{\"string\":\"string\",\"boolean\":\"true\",\"number\":\"1\"}");
	Properties props3 = new Properties(props);
	assertEquals(json.toJson(props3), "{\"string\":\"string\",\"boolean\":\"true\",\"number\":\"1\"}");
	Properties props2 = json.fromJson(json.toJson(props), Properties.class);
	assertEquals(props2, props);
	assertEquals(json.toJson(props2), json.toJson(props));
	}

	public void testMapStringObjectWithAllValidValuesOneDeep() {
	Map<String, Object> map = ImmutableMap.<String, Object>builder()
	.put("string", "string")
	.put("map", ImmutableMap.of("key", "value"))
	.put("list", ImmutableList.of("key", "value"))
	.put("boolean", true)
	.put("number", 1.0)
	.build();
	assertEquals(json.toJson(map),
	"{\"string\":\"string\",\"map\":{\"key\":\"value\"},\"list\":[\"key\",\"value\"],\"boolean\":true,\"number\":1.0}");
	Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
	}.getType());
	assertEquals(map2, map);
	assertEquals(json.toJson(map2), json.toJson(map));
	}

	public void testMapStringObjectWithNumericalKeysConvertToStrings() {
	Map<String, Object> map = ImmutableMap.<String, Object> of("map", ImmutableMap.of(1, "value"));
	assertEquals(json.toJson(map), "{\"map\":{\"1\":\"value\"}}");
	Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
	}.getType());
	// note conversion.. ensures valid
	assertEquals(map2, ImmutableMap.<String, Object> of("map", ImmutableMap.of("1", "value")));
	assertEquals(json.toJson(map2), json.toJson(map));
	}

	public void testMapStringObjectWithBooleanKeysConvertToStrings() {
	Map<String, Object> map = ImmutableMap.<String, Object> of("map", ImmutableMap.of(true, "value"));
	assertEquals(json.toJson(map), "{\"map\":{\"true\":\"value\"}}");
	Map<String, Object> map2 = json.fromJson(json.toJson(map), new TypeLiteral<Map<String, Object>>() {
	}.getType());
	// note conversion.. ensures valid
	assertEquals(map2, ImmutableMap.<String, Object> of("map", ImmutableMap.of("true", "value")));
	assertEquals(json.toJson(map2), json.toJson(map));
	}

	public void testDeserializeEnum() {
	assertEquals(json.fromJson("{enumValue : \"FOO\"}", EnumInside.class).enumValue, EnumInside.Test.FOO);
	}

	@Test(expectedExceptions = IllegalArgumentException.class)
	public void testDeserializeEnumWhenBadValue() {
	assertEquals(json.fromJson("{enumValue : \"s\"}", EnumInside.class).enumValue, EnumInside.Test.FOO);
	}

	private static class EnumInsideWithParser {
	private static enum Test {
	FOO, BAR, UNRECOGNIZED;

	@SuppressWarnings("unused")
	public static Test fromValue(String state) {
	try {
	return valueOf(state);
	} catch (IllegalArgumentException e) {
	return UNRECOGNIZED;
	}
	}
	}

	private Test enumValue;
	}

	public void testDeserializeEnumWithParser() {
	assertEquals(json.fromJson("{enumValue : \"FOO\"}", EnumInsideWithParser.class).enumValue,
	EnumInsideWithParser.Test.FOO);
	}

	public void testDeserializeEnumWithParserAndBadValue() {
	assertEquals(json.fromJson("{enumValue : \"sd\"}", EnumInsideWithParser.class).enumValue,
	EnumInsideWithParser.Test.UNRECOGNIZED);
	}

	@AutoValue
	abstract static class SerializedNamesType {
	abstract String id();

	@Nullable abstract Map<String, String> volumes();

	@SerializedNames({ "Id", "Volumes" })
	private static SerializedNamesType create(String id, Map<String, String> volumes) {
	return new AutoValue_JsonTest_SerializedNamesType(id, volumes);
	}
	}

	public void autoValueSerializedNames() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

	SerializedNamesType resource = SerializedNamesType.create("1234", Collections.<String, String>emptyMap());
	String spinalJson = "{\"Id\":\"1234\",\"Volumes\":{}}";

	assertEquals(json.toJson(resource), spinalJson);
	assertEquals(json.fromJson(spinalJson, SerializedNamesType.class), resource);
	}

	public void autoValueWithBuilder() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

	SerializedNamesWithBuilder resource = SerializedNamesWithBuilder.builder().id("1234").number(2).build();
	String spinalJson = "{\"custom_id_name\":\"1234\",\"number\":2}";

	assertEquals(json.toJson(resource), spinalJson);
	assertEquals(json.fromJson(spinalJson, SerializedNamesWithBuilder.class), resource);
	}

	public void autoValueWithBuilderNested() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

	SerializedNamesNestedWithBuilder resource = SerializedNamesNestedWithBuilder.builder().id("1234")
	.snwb(ImmutableList.of(SerializedNamesWithBuilder.builder().id("5678").number(1).build())).build();

	String spinalJson = "{\"nested_id_name\":\"1234\",\"serialized_name_with_builder\":[{\"custom_id_name\":\"5678\",\"number\":1}]}";

	assertEquals(json.toJson(resource), spinalJson);
	assertEquals(json.fromJson(spinalJson, SerializedNamesNestedWithBuilder.class), resource);
	}

	public void autoValueWithBuilderMissingNested() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

	SerializedNamesNestedWithBuilder resource = SerializedNamesNestedWithBuilder.builder().id("1234")
	.snwb(ImmutableList.<SerializedNamesWithBuilder>of()).build();

	String spinalJson = "{\"nested_id_name\":\"1234\",\"serialized_name_with_builder\":[]}";

	assertEquals(json.toJson(resource), spinalJson);
	assertEquals(json.fromJson(spinalJson, SerializedNamesNestedWithBuilder.class), resource);
	}

	@AutoValue
	abstract static class SerializedNamesNestedWithBuilder {
	public abstract String getId();
	@Nullable
	public abstract List<SerializedNamesWithBuilder> getSnwb();

	public static Builder builder() {
	return new AutoValue_JsonTest_SerializedNamesNestedWithBuilder.Builder();
	}
	public abstract Builder toBuilder();

	@AutoValue.Builder
	public interface Builder {
	Builder id(String id);
	Builder snwb(List<SerializedNamesWithBuilder> snwb);
	SerializedNamesNestedWithBuilder build();
	}

	@SerializedNames({"nested_id_name", "serialized_name_with_builder"})
	private static SerializedNamesNestedWithBuilder create(String id, List<SerializedNamesWithBuilder> snwb) {
	return builder().id(id).snwb(snwb).build();
	}
	}

	@AutoValue
	abstract static class SerializedNamesWithBuilder {
	public abstract String getId();
	public abstract int getNumber();

	public static Builder builder() {
	return new AutoValue_JsonTest_SerializedNamesWithBuilder.Builder();
	}
	public abstract Builder toBuilder();

	@AutoValue.Builder
	public interface Builder {
	Builder id(String id);
	Builder number(int number);
	SerializedNamesWithBuilder build();
	}

	@SerializedNames({"custom_id_name", "number"})
	private static SerializedNamesWithBuilder create(String id, int number) {
	return builder().id(id).number(number).build();
	}
	}

	@AutoValue
	abstract static class SerializedNamesTooFewType {
	abstract String id();

	@Nullable abstract Map<String, String> volumes();

	@SerializedNames("Id") // TODO: check things like this with error-prone, not runtime!
	private static SerializedNamesTooFewType create(String id, Map<String, String> volumes) {
	return new AutoValue_JsonTest_SerializedNamesTooFewType(id, volumes);
	}
	}

	/** Common problem. Someone adds a parameter, but forgets to add it to the names list. */
	@Test(expectedExceptions = IllegalStateException.class, expectedExceptionsMessageRegExp = "Incorrect number .*")
	public void autoValueSerializedNames_tooFew() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);
	json.toJson(SerializedNamesTooFewType.create("1234", null));
	}

	public void autoValueSerializedNames_nullValueInJson() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

	assertEquals(json.fromJson("{\"Id\":\"1234\",\"Volumes\":null}", SerializedNamesType.class),
	SerializedNamesType.create("1234", null));
	}

	public void nonUtf8InputStream() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);
	String jsonValue = "{\"stringValue\":\"1234\",\"intValue\":1234}";
	Charset ebcdicCharset = Charset.forName("IBM-1047");
	ByteArrayInputStream inputStream = new ByteArrayInputStream(jsonValue.getBytes(ebcdicCharset));
	assertEquals(json.fromJson(inputStream, ebcdicCharset, ObjectNoDefaultConstructor.class),
	new ObjectNoDefaultConstructor("1234", 1234));
	}

	@AutoValue
	abstract static class NestedSerializedNamesType {
	abstract SerializedNamesType item();
	abstract List<SerializedNamesType> items();

	@SerializedNames({ "Item", "Items" })
	private static NestedSerializedNamesType create(SerializedNamesType item, List<SerializedNamesType> items) {
	return new AutoValue_JsonTest_NestedSerializedNamesType(item, items);
	}
	}

	private final NestedSerializedNamesType nested = NestedSerializedNamesType
	.create(SerializedNamesType.create("1234", Collections.<String, String>emptyMap()),
	Arrays.asList(SerializedNamesType.create("5678", ImmutableMap.of("Foo", "Bar"))));

	public void autoValueSerializedNames_nestedType() {
	Json json = Guice.createInjector(new GsonModule()).getInstance(Json.class);

	String spinalJson = "{\"Item\":{\"Id\":\"1234\",\"Volumes\":{}},\"Items\":[{\"Id\":\"5678\",\"Volumes\":{\"Foo\":\"Bar\"}}]}";

	assertEquals(json.toJson(nested), spinalJson);
	assertEquals(json.fromJson(spinalJson, NestedSerializedNamesType.class), nested);
	}

	public void autoValueSerializedNames_overriddenTypeAdapterFactory() {
	Json json = Guice.createInjector(new GsonModule(), new AbstractModule() {
	@Override protected void configure() {
	}

	@Provides public Set<TypeAdapterFactory> typeAdapterFactories() {
	return ImmutableSet.<TypeAdapterFactory>of(new NestedSerializedNamesTypeAdapterFactory());
	}
	}).getInstance(Json.class);

	assertEquals(json.toJson(nested), "{\"id\":\"1234\",\"count\":1}");
	assertEquals(json.fromJson("{\"id\":\"1234\",\"count\":1}", NestedSerializedNamesType.class), nested);
	}

	private class NestedSerializedNamesTypeAdapterFactory extends TypeAdapter<NestedSerializedNamesType>
	implements TypeAdapterFactory {

	@Override public <T> TypeAdapter<T> create(Gson gson, TypeToken<T> typeToken) {
	if (!(NestedSerializedNamesType.class.isAssignableFrom(typeToken.getRawType()))) {
	return null;
	}
	return (TypeAdapter<T>) this;
	}

	@Override public void write(JsonWriter out, NestedSerializedNamesType value) throws IOException {
	out.beginObject();
	out.name("id").value(value.item().id());
	out.name("count").value(value.items().size());
	out.endObject();
	}

	@Override public NestedSerializedNamesType read(JsonReader in) throws IOException {
	in.beginObject();
	in.nextName();
	in.nextString();
	in.nextName();
	in.nextInt();
	in.endObject();
	return nested;
	}
	}
	}