fix(test): assert gRPC status code directly instead of matching message text

Author: Federico2014

framework/src/test/java/org/tron/core/services/RpcApiServicesTest.java

@@ -7,6 +7,7 @@
 
 import com.google.protobuf.Any;
 import com.google.protobuf.ByteString;
+import io.grpc.Status;
 import io.grpc.StatusRuntimeException;
 import io.grpc.ManagedChannel;
 import io.grpc.ManagedChannelBuilder;
@@ -584,7 +585,7 @@ public void testScanNoteByIvkRejectsInvalidLength() {
       blockingStubFull.scanNoteByIvk(message);
       Assert.fail("Expected INVALID_ARGUMENT");
     } catch (StatusRuntimeException e) {
-      Assert.assertTrue(e.getMessage().contains("INVALID_ARGUMENT"));
+      Assert.assertEquals(Status.Code.INVALID_ARGUMENT, e.getStatus().getCode());
     }
   }
 
@@ -602,7 +603,7 @@ public void testScanAndMarkNoteByIvkRejectsInvalidLength() {
       blockingStubFull.scanAndMarkNoteByIvk(message);
       Assert.fail("Expected INVALID_ARGUMENT");
     } catch (StatusRuntimeException e) {
-      Assert.assertTrue(e.getMessage().contains("INVALID_ARGUMENT"));
+      Assert.assertEquals(Status.Code.INVALID_ARGUMENT, e.getStatus().getCode());
     }
   }
 
@@ -620,7 +621,7 @@ public void testScanShieldedTRC20NotesByIvkRejectsInvalidLength() {
       blockingStubFull.scanShieldedTRC20NotesByIvk(message);
       Assert.fail("Expected INVALID_ARGUMENT");
     } catch (StatusRuntimeException e) {
-      Assert.assertTrue(e.getMessage().contains("INVALID_ARGUMENT"));
+      Assert.assertEquals(Status.Code.INVALID_ARGUMENT, e.getStatus().getCode());
     }
   }
 
@@ -636,7 +637,7 @@ public void testScanShieldedTRC20NotesByOvkRejectsInvalidLength() {
       blockingStubFull.scanShieldedTRC20NotesByOvk(message);
       Assert.fail("Expected INVALID_ARGUMENT");
     } catch (StatusRuntimeException e) {
-      Assert.assertTrue(e.getMessage().contains("INVALID_ARGUMENT"));
+      Assert.assertEquals(Status.Code.INVALID_ARGUMENT, e.getStatus().getCode());
     }
   }