added original complex cond test cases

test/TensorFlowNET.UnitTest/PythonTest.cs

@@ -138,7 +138,7 @@ namespace TensorFlowNET.UnitTest
         /// </summary>
         public T evaluate<T>(Tensor tensor)
         {
-            var results = new Dictionary<string, NDArray>();
+            object result = null;
             //  if context.executing_eagerly():
             //    return self._eval_helper(tensors)
             //  else:
@@ -146,26 +146,25 @@ namespace TensorFlowNET.UnitTest
                 var sess = ops.get_default_session();
                 if (sess == null)
                     sess = self.session();
-                T t_result = (T)(object)null;
                 with<Session>(sess, s =>
                 {
-                        var ndarray=tensor.eval();
+                    var ndarray=tensor.eval();
                     if (typeof(T) == typeof(double))
                     {
-                        double d = ndarray;
-                        t_result = (T)(object)d;
+                        double x = ndarray;
+                        result=x;
                     }
                     else if (typeof(T) == typeof(int))
                     {
-                        int d = ndarray;
-                        t_result = (T) (object) d;
+                        int x = ndarray;
+                        result = x;
                     }
                     else
                     {
-                        t_result = (T)(object)ndarray;
+                        result = ndarray;
                     }
                 });
-                return t_result;
+                return (T)result;
             }
         }
 

test/TensorFlowNET.UnitTest/control_flow_ops_test/CondTestCases.cs

@@ -12,7 +12,7 @@ namespace TensorFlowNET.UnitTest.control_flow_ops_test
     public class CondTestCases : PythonTest
     {
         [TestMethod]
-        public void testCondTrue()
+        public void testCondTrue_ConstOnly()
         {
             var graph = tf.Graph().as_default();
 
@@ -31,7 +31,7 @@ namespace TensorFlowNET.UnitTest.control_flow_ops_test
         }
 
         [TestMethod]
-        public void testCondFalse()
+        public void testCondFalse_ConstOnly()
         {
             var graph = tf.Graph().as_default();
 
@@ -49,6 +49,40 @@ namespace TensorFlowNET.UnitTest.control_flow_ops_test
             });
         }
 
+        [TestMethod]
+        public void testCondTrue()
+        {
+            var graph = tf.Graph().as_default();
+
+            with(tf.Session(graph), sess =>
+            {
+                var x = tf.constant(2);
+                var y = tf.constant(5);
+                var z = control_flow_ops.cond(tf.less(x, y), () => tf.multiply(x, tf.constant(17)),
+                    () => tf.add(y, tf.constant(23)));
+                //tf.train.export_meta_graph(@"D:\dev\tensorboard\logdir\sharp.meta", as_text: false);
+                int result = z.eval(sess);
+                assertEquals(result, 34);
+            });
+        }
+
+        //[Ignore("This Test Fails due to missing edges in the graph!")]
+        [TestMethod]
+        public void testCondFalse()
+        {
+            var graph = tf.Graph().as_default();
+
+            with(tf.Session(graph), sess =>
+            {
+                var x = tf.constant(2);
+                var y = tf.constant(1);
+                var z = control_flow_ops.cond(tf.less(x, y), () => tf.multiply(x, tf.constant(17)),
+                    () => tf.add(y, tf.constant(23)));
+                int result = z.eval(sess);
+                assertEquals(result, 24);
+            });
+        }
+
         // NOTE: all other test python test cases of this class are either not needed due to strong typing or dest a deprecated api
 
     }