Fix generics in EppXmlTransformer.unmarshal to not be only on the return type.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=124914271

javatests/google/registry/flows/EppXmlTransformerTest.java

@@ -0,0 +1,52 @@
+// Copyright 2016 The Domain Registry Authors. All Rights Reserved.
+//
+// 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 google.registry.flows;
+
+import static com.google.common.truth.Truth.assertThat;
+import static google.registry.flows.EppXmlTransformer.unmarshal;
+import static google.registry.util.ResourceUtils.readResourceBytes;
+
+import google.registry.model.eppinput.EppInput;
+import google.registry.model.eppoutput.EppOutput;
+import google.registry.testing.ExceptionRule;
+import google.registry.testing.ShardableTestCase;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests for {@link EppXmlTransformer}. */
+@RunWith(JUnit4.class)
+public class EppXmlTransformerTest extends ShardableTestCase {
+
+  @Rule
+  public final ExceptionRule thrown = new ExceptionRule();
+
+  @Test
+  public void testUnmarshalingEppInput() throws Exception {
+    EppInput input = unmarshal(
+        EppInput.class, readResourceBytes(getClass(), "testdata/contact_info.xml").read());
+    assertThat(input.getCommandName()).isEqualTo("Info");
+  }
+
+  @Test
+  public void testUnmarshalingWrongClassThrows() throws Exception {
+    thrown.expect(ClassCastException.class);
+    EppXmlTransformer.unmarshal(
+        EppOutput.class, readResourceBytes(getClass(), "testdata/contact_info.xml").read());
+  }
+}