Fixed codec test cases now that int is not PyInt

src/embed_tests/Codecs.cs

@@ -232,7 +232,7 @@ public void IterableDecoderTest()
             //ensure a PyList can be converted to a plain IEnumerable
             System.Collections.IEnumerable plainEnumerable1 = null;
             Assert.DoesNotThrow(() => { codec.TryDecode(pyList, out plainEnumerable1); });
-            CollectionAssert.AreEqual(plainEnumerable1.Cast<PyInt>().Select(i => i.ToInt32()), new List<object> { 1, 2, 3 });
+            CollectionAssert.AreEqual(plainEnumerable1.Cast<int>(), new List<int> { 1, 2, 3 });
 
             //can convert to any generic ienumerable.  If the type is not assignable from the python element
             //it will lead to an empty iterable when decoding.  TODO - should it throw?
@@ -272,7 +272,7 @@ public void IterableDecoderTest()
             var fooType = foo.GetPythonType();
             System.Collections.IEnumerable plainEnumerable2 = null;
             Assert.DoesNotThrow(() => { codec.TryDecode(pyList, out plainEnumerable2); });
-            CollectionAssert.AreEqual(plainEnumerable2.Cast<PyInt>().Select(i => i.ToInt32()), new List<object> { 1, 2, 3 });
+            CollectionAssert.AreEqual(plainEnumerable2.Cast<int>(), new List<int> { 1, 2, 3 });
 
             //can convert to any generic ienumerable.  If the type is not assignable from the python element
             //it will be an exception during TryDecode

src/embed_tests/TestConverter.cs

@@ -144,11 +144,12 @@ public void BigIntExplicit()
         }
 
         [Test]
-        public void PyIntImplicit()
+        public void PyIntExplicit()
         {
-            var i = new PyInt(1);
-            var ni = (PyObject)i.As<object>();
-            Assert.IsTrue(PythonReferenceComparer.Instance.Equals(i, ni));
+            int val = 42;
+            var i = new PyInt(val);
+            var ni = i.As<int>();
+            Assert.AreEqual(val, ni);
         }
 
         [Test]