Fix javacript runs

packages/string-templates/test/javascript.spec.js

@@ -1,11 +1,31 @@
-const { processStringSync, encodeJSBinding } = require("../src/index.js")
+const vm = require("vm")
+
+const {
+  processStringSync,
+  encodeJSBinding,
+  setJSRunner,
+} = require("../src/index.js")
 const { UUID_REGEX } = require("./constants")
 
 const processJS = (js, context) => {
   return processStringSync(encodeJSBinding(js), context)
 }
 
-describe("Test the JavaScript helper", () => {
+describe("Javascript", () => {
+  beforeAll(() => {
+    setJSRunner((js, context) => {
+      context = {
+        ...context,
+        alert: undefined,
+        setInterval: undefined,
+        setTimeout: undefined,
+      }
+      vm.createContext(context)
+      return vm.runInNewContext(js, context, { timeout: 1000 })
+    })
+  })
+
+  describe("Test the JavaScript helper", () => {
     it("should execute a simple expression", () => {
       const output = processJS(`return 1 + 2`)
       expect(output).toBe(3)
@@ -129,9 +149,9 @@ describe("Test the JavaScript helper", () => {
       )
       expect(output).toBe("Error while executing JS")
     })
-})
+  })
 
-describe("check JS helpers", () => {
+  describe("check JS helpers", () => {
     it("should error if using the format helper. not helpers.", () => {
       const output = processJS(`return helper.toInt(4.3)`)
       expect(output).toBe("Error while executing JS")
@@ -146,4 +166,5 @@ describe("check JS helpers", () => {
       const output = processJS(`return helpers.uuid()`)
       expect(output).toMatch(UUID_REGEX)
     })
+  })
 })