fix(setImmediate): make code resilient to setImmediate not existing

Author: facundop3

src/helpers.js

@@ -16,13 +16,17 @@ function runWithRealTimers(callback) {
 
 function runWithJestRealTimers(callback) {
   const timerAPI = {
-    clearImmediate,
     clearInterval,
     clearTimeout,
-    setImmediate,
     setInterval,
     setTimeout,
   }
+  if (typeof setImmediate === 'function') {
+    timerAPI.setImmediate = setImmediate
+  }
+  if (typeof clearImmediate === 'function') {
+    timerAPI.clearImmediate = clearImmediate
+  }
 
   jest.useRealTimers()
 

src/wait-for-dom-change.js

@@ -1,7 +1,6 @@
 import {
   getWindowFromNode,
   getDocument,
-  setImmediate,
   setTimeout,
   clearTimeout,
   runWithRealTimers,
@@ -39,7 +38,7 @@ function waitForDomChange({
 
     function onDone(error, result) {
       clearTimeout(timer)
-      setImmediate(() => observer.disconnect())
+      setTimeout(() => observer.disconnect(), 0)
       if (error) {
         reject(error)
       } else {