pythonnet
diff --git a/‎src/embed_tests/TestRuntime.cs
Lines changed: 42 additions & 1 deletion b/‎src/embed_tests/TestRuntime.cs
Lines changed: 42 additions & 1 deletion
diff --git a/‎src/tests/test_runtime.py
Lines changed: 0 additions & 50 deletions b/‎src/tests/test_runtime.py
Lines changed: 0 additions & 50 deletions
@@ -1,4 +1,4 @@
-using System;
+using System;
 using NUnit.Framework;
 using Python.Runtime;
 
@@ -47,5 +47,46 @@ public static void RefCountTest()
 
             Runtime.Runtime.Py_Finalize();
         }
+
+        [Test]
+        public static void PyCheck_Iter_PyObject_IsIterable_Test()
+        {
+            Runtime.Runtime.Py_Initialize();
+
+            // Tests that a python list is an iterable, but not an iterator
+            var pyList = Runtime.Runtime.PyList_New(0);
+            Assert.IsFalse(Runtime.Runtime.PyIter_Check(pyList));
+            Assert.IsTrue(Runtime.Runtime.PyObject_IsIterable(pyList));
+
+            // Tests that a python list iterator is both an iterable and an iterator
+            var pyListIter = Runtime.Runtime.PyObject_GetIter(pyList);
+            Assert.IsTrue(Runtime.Runtime.PyObject_IsIterable(pyListIter));
+            Assert.IsTrue(Runtime.Runtime.PyIter_Check(pyListIter));
+
+            // Tests that a python float is neither an iterable nor an iterator
+            var pyFloat = Runtime.Runtime.PyFloat_FromDouble(2.73);
+            Assert.IsFalse(Runtime.Runtime.PyObject_IsIterable(pyFloat));
+            Assert.IsFalse(Runtime.Runtime.PyIter_Check(pyFloat));
+
+            Runtime.Runtime.Py_Finalize();
+        }
+
+        [Test]
+        public static void PyCheck_Iter_PyObject_IsIterable_ThreadingLock_Test()
+        {
+            Runtime.Runtime.Py_Initialize();
+
+            // Create an instance of threading.Lock, which is one of the very few types that does not have the
+            // TypeFlags.HaveIter set in Python 2. This tests a different code path in PyObject_IsIterable and PyIter_Check.
+            var threading = Runtime.Runtime.PyImport_ImportModule("threading");
+            var threadingDict = Runtime.Runtime.PyModule_GetDict(threading);
+            var lockType = Runtime.Runtime.PyDict_GetItemString(threadingDict, "Lock");
+            var lockInstance = Runtime.Runtime.PyObject_CallObject(lockType, Runtime.Runtime.PyTuple_New(0));
+
+            Assert.IsFalse(Runtime.Runtime.PyObject_IsIterable(lockInstance));
+            Assert.IsFalse(Runtime.Runtime.PyIter_Check(lockInstance));
+
+            Runtime.Runtime.Py_Finalize();
+        }
     }
 }