Added tests.

Canon/tests/TypeConversionTests.qs

@@ -0,0 +1,26 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+namespace Microsoft.Quantum.Tests {
+    open Microsoft.Quantum.Primitive;
+    open Microsoft.Quantum.Canon;
+
+    function Square(x : Int) : Int {
+        return x * x;
+    }
+
+    operation ApplyOp<'T, 'U>(op : ('T => 'U), input : 'T) : 'U {
+        return op(input);
+    }
+
+    operation CallTest() : Unit {
+        AssertIntEqual(Call(Square, 4), 16, "Call failed with Square.");
+    }
+
+    operation ToOperationTest : Unit {
+        let op = ToOperation(Square);
+        AssertIntEqual(ApplyOp(op, 3), 9);
+    }
+
+}
+
+