Fix problems when global objects like JSON, etc. have been rewired

Fixes #40

2 files changed, 14 insertions, 7 deletions

diff --git a/test/__set__.test.js b/test/__set__.test.js
index ef69a07..efd1eeb 100644
--- a/test/__set__.test.js
+++ b/test/__set__.test.js
@@ -121,11 +121,5 @@ describe("__set__", function () {
         expect(function () {
             moduleFake.__set__(function () {});
         }).to.throwException(expectTypeError);
-        expect(function () {
-            moduleFake.__set__({}, true);   // misfitting number of params
-        }).to.throwException(expectTypeError);
-        expect(function () {
-            moduleFake.__set__("someVar");  // misfitting number of params
-        }).to.throwException(expectTypeError);
     });
-});
\ No newline at end of file
+});
diff --git a/test/testModules/sharedTestCases.js b/test/testModules/sharedTestCases.js
index 76498bd..7048ba8 100644
--- a/test/testModules/sharedTestCases.js
+++ b/test/testModules/sharedTestCases.js
@@ -337,4 +337,17 @@ describe("rewire " + (typeof testEnv === "undefined"? "(node)": "(" + testEnv +
         }
     });
 
+    it("should be possible to mock and revert JSON.parse (see #40)", function () {
+        var moduleA = rewire("./moduleA.js"),
+            revert;
+
+        revert = moduleA.__set__({
+            JSON: {
+                parse: function () { return true; }
+            }
+        });
+
+        revert();
+    });
+
 });