interop-testing: adds assertions to empty_stream test case (#7030)

If the server fails (e.g.: with an unimplemented status), the test still succeeds. This change adds assertions to check the status code as well as the expected number of responses.
grpc · May 13, 2020 · cc2d376 · cc2d376
1 parent f9353e0
commit cc2d376
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/interop-testing/src/main/java/io/grpc/testing/integration/AbstractInteropTest.java b/interop-testing/src/main/java/io/grpc/testing/integration/AbstractInteropTest.java
@@ -790,6 +790,8 @@ public void emptyStream() throws Exception {
         = asyncStub.fullDuplexCall(responseObserver);
     requestObserver.onCompleted();
     responseObserver.awaitCompletion(operationTimeoutMillis(), TimeUnit.MILLISECONDS);
+    assertSuccess(responseObserver);
+    assertTrue("Expected an empty stream", responseObserver.getValues().isEmpty());
   }
 
   @Test