diff --git a/test/TensorFlowNET.UnitTest/CApiTest.cs b/test/TensorFlowNET.UnitTest/CApiTest.cs
index 07e19109..a8b1caea 100644
--- a/test/TensorFlowNET.UnitTest/CApiTest.cs
+++ b/test/TensorFlowNET.UnitTest/CApiTest.cs
@@ -9,6 +9,7 @@ namespace TensorFlowNET.UnitTest
     {
         protected TF_Code TF_OK = TF_Code.TF_OK;
         protected TF_DataType TF_FLOAT = TF_DataType.TF_FLOAT;
+        protected TF_DataType TF_BOOL = TF_DataType.TF_BOOL;
 
         protected void EXPECT_TRUE(bool expected, string msg = "")
             => Assert.IsTrue(expected, msg);
@@ -73,6 +74,9 @@ namespace TensorFlowNET.UnitTest
         protected void TF_DeleteStatus(IntPtr s)
             => c_api.TF_DeleteStatus(s);
 
+        protected void TF_DeleteTensor(IntPtr t)
+            => c_api.TF_DeleteTensor(t);
+
         protected IntPtr TF_TensorData(IntPtr t)
             => c_api.TF_TensorData(t);
 
@@ -94,6 +98,9 @@ namespace TensorFlowNET.UnitTest
         protected IntPtr TFE_NewOp(IntPtr ctx, string op_or_function_name, IntPtr status)
             => c_api.TFE_NewOp(ctx, op_or_function_name, status);
 
+        protected IntPtr TFE_NewTensorHandle(IntPtr t, IntPtr status)
+            => c_api.TFE_NewTensorHandle(t, status);
+
         protected void TFE_Execute(IntPtr op, IntPtr[] retvals, ref int num_retvals, IntPtr status)
             => c_api.TFE_Execute(op, retvals, ref num_retvals, status);
 
diff --git a/test/TensorFlowNET.UnitTest/Eager/CApi.Eager.OpInferMixedTypeInputListAttrs.cs b/test/TensorFlowNET.UnitTest/Eager/CApi.Eager.OpInferMixedTypeInputListAttrs.cs
new file mode 100644
index 00000000..4ce86574
--- /dev/null
+++ b/test/TensorFlowNET.UnitTest/Eager/CApi.Eager.OpInferMixedTypeInputListAttrs.cs
@@ -0,0 +1,57 @@
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using System;
+using System.Collections.Generic;
+using Tensorflow;
+using Tensorflow.Eager;
+using Buffer = System.Buffer;
+using System.Linq;
+
+namespace TensorFlowNET.UnitTest.Eager
+{
+    public partial class CApiEagerTest
+    {
+        /// <summary>
+        /// TEST(CAPI, TestTFE_OpInferMixedTypeInputListAttrs)
+        /// </summary>
+        [TestMethod]
+        public unsafe void OpInferMixedTypeInputListAttrs()
+        {
+            var status = TF_NewStatus();
+            var opts = TFE_NewContextOptions();
+            var ctx = TFE_NewContext(opts, status);
+            CHECK_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+            TFE_DeleteContextOptions(opts);
+
+            var condition = TestScalarTensorHandle(true);
+            var t1 = TestMatrixTensorHandle();
+            var t2 = TestAxisTensorHandle();
+            var assertOp = TFE_NewOp(ctx, "Assert", status);
+            CHECK_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+            TFE_OpAddInput(assertOp, condition, status);
+            CHECK_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+            var data = new[] { condition, t1, t2 };
+            TFE_OpAddInputList(assertOp, data, 3, status);
+            CHECK_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+
+            var attr_values = Graph.TFE_GetOpDef("Assert").Attr;
+            var attr_found = attr_values.First(x => x.Name == "T");
+            EXPECT_NE(attr_found, attr_values.Last());
+            // EXPECT_EQ(attr_found.Type[0], "DT_BOOL");
+            //EXPECT_EQ(attr_found->second.list().type(1), tensorflow::DataType::DT_FLOAT);
+            //EXPECT_EQ(attr_found->second.list().type(2), tensorflow::DataType::DT_INT32);
+
+            var retvals = new IntPtr[1];
+            int num_retvals = 1;
+            TFE_Execute(assertOp, retvals, ref num_retvals, status);
+            EXPECT_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+
+            TF_DeleteStatus(status);
+            TFE_DeleteOp(assertOp);
+            TFE_DeleteTensorHandle(condition);
+            TFE_DeleteTensorHandle(t1);
+            TFE_DeleteTensorHandle(t2);
+            TFE_DeleteTensorHandle(retvals[0]);
+            TFE_DeleteContext(ctx);
+        }
+    }
+}
diff --git a/test/TensorFlowNET.UnitTest/Eager/CApi.Eager.cs b/test/TensorFlowNET.UnitTest/Eager/CApi.Eager.cs
index 80150600..9363212a 100644
--- a/test/TensorFlowNET.UnitTest/Eager/CApi.Eager.cs
+++ b/test/TensorFlowNET.UnitTest/Eager/CApi.Eager.cs
@@ -120,5 +120,45 @@ namespace TensorFlowNET.UnitTest.Eager
 
             return var_handle[0];
         }
+
+        IntPtr TestAxisTensorHandle()
+        {
+            var dims = new long[] { 1 };
+            var data = new int[] { 1 };
+            var t = c_api.TF_AllocateTensor(TF_DataType.TF_INT32, dims, 1, sizeof(int));
+            memcpy(TF_TensorData(t), data, TF_TensorByteSize(t));
+            var status = TF_NewStatus();
+            var th = c_api.TFE_NewTensorHandle(t, status);
+            CHECK_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+            TF_DeleteTensor(t);
+            TF_DeleteStatus(status);
+            return th;
+        }
+
+        IntPtr TestScalarTensorHandle(bool value)
+        {
+            var data = new[] { value };
+            var t = c_api.TF_AllocateTensor(TF_BOOL, null, 0, sizeof(bool));
+            memcpy(TF_TensorData(t), data, TF_TensorByteSize(t));
+            var status = TF_NewStatus();
+            var th = TFE_NewTensorHandle(t, status);
+            CHECK_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+            TF_DeleteTensor(t);
+            TF_DeleteStatus(status);
+            return th;
+        }
+
+        IntPtr TestScalarTensorHandle(float value)
+        {
+            var data = new [] { value };
+            var t = c_api.TF_AllocateTensor(TF_FLOAT, null, 0, sizeof(float));
+            memcpy(TF_TensorData(t), data, TF_TensorByteSize(t));
+            var status = TF_NewStatus();
+            var th = TFE_NewTensorHandle(t, status);
+            CHECK_EQ(TF_OK, TF_GetCode(status), TF_Message(status));
+            TF_DeleteTensor(t);
+            TF_DeleteStatus(status);
+            return th;
+        }
     }
 }