fix: do not modify the Function prototype when running tests

refs #2502
sinonjs · Mar 24, 2023 · 3c3dfb2 · 3c3dfb2
1 parent 6e19746
commit 3c3dfb2
Showing 1 changed file with 8 additions and 7 deletions.
diff --git a/test/stub-test.js b/test/stub-test.js
@@ -174,6 +174,7 @@ describe("stub", function () {
                 test: func,
             };
             func.aProp = 42;
+
             createStub(object, "test");
 
             assert.equals(object.test.aProp, 42);
@@ -1536,16 +1537,16 @@ describe("stub", function () {
         });
 
         it("stubs methods of function", function () {
-            var func = function () {
-                return;
-            };
+            class FunctionType extends Function {
+                func2() {
+                    return 42;
+                }
+            }
+
+            var func = new FunctionType();
             func.func1 = function () {
                 return;
             };
-            // eslint-disable-next-line no-proto
-            func.__proto__.func2 = function () {
-                return;
-            };
 
             createStub(func);