diff --git a/spec-grpc/src/test/java/io/a2a/grpc/utils/FromProtoTest.java b/spec-grpc/src/test/java/io/a2a/grpc/utils/FromProtoTest.java
deleted file mode 100644
index 284ba172d..000000000
--- a/spec-grpc/src/test/java/io/a2a/grpc/utils/FromProtoTest.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package io.a2a.grpc.utils;
-
-import org.junit.jupiter.api.Test;
-
-import static org.junit.jupiter.api.Assertions.assertEquals;
-import static org.junit.jupiter.api.Assertions.assertNotNull;
-import static org.junit.jupiter.api.Assertions.assertThrows;
-
-public class FromProtoTest {
-    @Test
-    public void testFromProtoPartUnsupportedType() {
-        io.a2a.grpc.Part emptyPart = io.a2a.grpc.Part.newBuilder().build();
-        io.a2a.grpc.Message invalidMessage = io.a2a.grpc.Message.newBuilder()
-                                                                .addContent(emptyPart)
-                                                                .build();
-        io.a2a.spec.InvalidParamsError exception = assertThrows(
-                io.a2a.spec.InvalidParamsError.class,
-                () -> ProtoUtils.FromProto.message(invalidMessage)
-        );
-
-        assertEquals("Invalid parameters", exception.getMessage());
-
-    }
-
-    @Test
-    public void testTaskQueryParamsInvalidName() {
-        io.a2a.grpc.GetTaskRequest request = io.a2a.grpc.GetTaskRequest.newBuilder()
-                                                                       .setName("invalid-name-format")
-                                                                       .build();
-
-        var result = ProtoUtils.FromProto.taskQueryParams(request);
-
-        assertNotNull(result);
-        assertEquals("invalid-name-format", result.id());
-    }
-
-}
diff --git a/spec-grpc/src/test/java/io/a2a/grpc/utils/ToProtoTest.java b/spec-grpc/src/test/java/io/a2a/grpc/utils/ToProtoTest.java
index 5b2650d86..67e8463ed 100644
--- a/spec-grpc/src/test/java/io/a2a/grpc/utils/ToProtoTest.java
+++ b/spec-grpc/src/test/java/io/a2a/grpc/utils/ToProtoTest.java
@@ -289,28 +289,4 @@ public void convertTaskTimestampStatus() {
         assertNotNull(status.timestamp());
         assertEquals(expectedTimestamp, status.timestamp());
     }
-
-    @Test
-    public void testToProtoPartUnsupportedType() {
-        class FakePart extends io.a2a.spec.Part<Object> {
-            @Override
-            public io.a2a.spec.Part.Kind getKind() { return null; }
-            @Override
-            public Map<String, Object> getMetadata() { return Map.of(); }
-        }
-
-        FakePart fakePart = new FakePart();
-
-        io.a2a.spec.Message message = new io.a2a.spec.Message.Builder()
-                .messageId("msg-unsupported")
-                .contextId("ctx-unsupported")
-                .role(io.a2a.spec.Message.Role.USER)
-                .parts(List.of(fakePart))
-                .build();
-        io.a2a.grpc.Message result = ProtoUtils.ToProto.message(message);
-
-        assertNotNull(result);
-        assertEquals(1, result.getContentCount());
-    }
-
 }