protobuf: add test for ProtoUtils (grpc#3838)

davido · Apr 6, 2018 · d68b2cd · d68b2cd
1 parent 8d3d26d
commit d68b2cd
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/protobuf/src/test/java/io/grpc/protobuf/ProtoUtilsTest.java b/protobuf/src/test/java/io/grpc/protobuf/ProtoUtilsTest.java
@@ -21,6 +21,8 @@
 import static org.junit.Assert.fail;
 
 import com.google.common.io.ByteStreams;
+import com.google.protobuf.Any;
+import com.google.protobuf.ByteString;
 import com.google.protobuf.Type;
 import io.grpc.MethodDescriptor.Marshaller;
 import io.grpc.Status;
@@ -60,6 +62,20 @@ public void testJsonRoundtrip() throws Exception {
     assertEquals(proto, marshaller.parse(is));
   }
 
+  @Test
+  public void testJsonMarshallerFailToPrint() {
+    Marshaller<Any> marshaller = ProtoUtils.jsonMarshaller(Any.getDefaultInstance());
+    try {
+      marshaller.stream(
+          Any.newBuilder().setValue(ByteString.copyFromUtf8("invalid (no type url)")).build());
+      fail("Expected exception");
+    } catch (StatusRuntimeException e) {
+      assertNotNull(e.getCause());
+      assertNotNull(e.getMessage());
+      assertEquals(Status.Code.INTERNAL, e.getStatus().getCode());
+    }
+  }
+
   @Test
   public void testJsonRepresentation() throws Exception {
     Marshaller<Type> marshaller = ProtoUtils.jsonMarshaller(Type.getDefaultInstance());