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(Failing) test cases for registering competing types.

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This commit is contained in:
Jesse Wilson 2011-03-14 22:14:35 +00:00
parent ef7bd4c999
commit 912add0779
1 changed files with 38 additions and 0 deletions
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38
gson/src/test/java/com/google/gson/functional/TypeHierarchyAdapterTest.java
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@ -23,6 +23,7 @@ import com.google.gson.JsonDeserializer;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParseException;
import com.google.gson.JsonPrimitive;
import com.google.gson.JsonSerializationContext;
import com.google.gson.JsonSerializer;
import java.lang.reflect.Type;
@ -115,6 +116,43 @@ public final class TypeHierarchyAdapterTest extends TestCase {
((Manager) company.ceo.minions[2]).minions[1].userid);
}
public void testRegisterSubtypeFirst() {
Gson gson = new GsonBuilder()
.registerTypeHierarchyAdapter(Employee.class, new EmployeeAdapter())
.registerTypeHierarchyAdapter(Manager.class, new ManagerAdapter())
.create();
Manager manager = new Manager();
manager.userid = "inder";
String json = gson.toJson(manager, Manager.class);
assertEquals("\"inder\"", json);
Manager copied = gson.fromJson(json, Manager.class);
assertEquals(manager.userid, copied.userid);
}
public void testRegisterSupertypeFirst() {
GsonBuilder builder = new GsonBuilder()
.registerTypeHierarchyAdapter(Manager.class, new ManagerAdapter())
.registerTypeHierarchyAdapter(Employee.class, new EmployeeAdapter());
try {
builder.create();
fail();
} catch (IllegalArgumentException expected) {
}
}
static class ManagerAdapter implements JsonSerializer<Manager>, JsonDeserializer<Manager> {
public Manager deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) {
Manager result = new Manager();
result.userid = json.getAsString();
return result;
}
public JsonElement serialize(Manager src, Type typeOfSrc, JsonSerializationContext context) {
return new JsonPrimitive(src.userid);
}
}
static class EmployeeAdapter implements JsonSerializer<Employee>, JsonDeserializer<Employee> {
public JsonElement serialize(Employee employee, Type typeOfSrc,
JsonSerializationContext context) {