test the security fix

packages/core/tests/pattern-draft.test.mjs

@@ -33,6 +33,18 @@ describe('Pattern', () => {
       expect(count).to.equal(2)
     })
   })
+  describe('Pattern.createPartForSet()', () => {
+    it('Should not allow malicious assignment to Object.prototype', () => {
+      const objProto = Object.prototype
+      const Pattern = new Design()
+      const pattern = new Pattern()
+
+      expect(() => pattern.createPartForSet('part', '__proto__')).to.throw(
+        'malicious attempt at altering Object.prototype. Stopping action'
+      )
+      expect(objProto).to.equal(Object.prototype)
+    })
+  })
   it('Should check whether a part is needed', () => {
     const partA = {
       name: 'test.partA',