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Add test to verify issue 309.

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This commit is contained in:
Joel Leitch 2011-04-13 16:14:54 +00:00
parent 9bfe443950
commit 97d00f4930
1 changed files with 26 additions and 0 deletions
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26
gson/src/test/java/com/google/gson/functional/MapTest.java
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@ -19,10 +19,13 @@ package com.google.gson.functional;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.InstanceCreator;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import com.google.gson.common.TestTypes;
import com.google.gson.internal.$Gson$Types;
import com.google.gson.reflect.TypeToken;
import junit.framework.TestCase;
@ -200,6 +203,29 @@ public class MapTest extends TestCase {
assertEquals("2", map.get("b"));
}
public void testCustomSerializerForSpecificMapType() {
Type type = $Gson$Types.newParameterizedTypeWithOwner(
null, Map.class, String.class, Long.class);
Gson gson = new GsonBuilder()
.registerTypeAdapter(type, new JsonSerializer<Map<String, Long>>() {
public JsonElement serialize(Map<String, Long> src, Type typeOfSrc,
JsonSerializationContext context) {
JsonArray array = new JsonArray();
for (long value : src.values()) {
array.add(new JsonPrimitive(value));
}
return array;
}
}).create();
Map<String, Long> src = new LinkedHashMap<String, Long>();
src.put("one", 1L);
src.put("two", 2L);
src.put("three", 3L);
assertEquals("[1,2,3]", gson.toJson(src, type));
}
/**
* Created in response to http://code.google.com/p/google-gson/issues/detail?id=99
*/