feat: expose wait method

Author: patrickhulce

lib/index.ts

@@ -1,6 +1,7 @@
 import {readFileSync} from 'fs'
 import * as path from 'path'
 import {ElementHandle, EvaluateFn, JSHandle, Page} from 'puppeteer'
+import waitForExpect from 'wait-for-expect'
 import {ITestUtils} from './typedefs'
 
 const domLibraryAsString = readFileSync(
@@ -75,6 +76,10 @@ function createDelegateFor(
   }
 }
 
+export function wait(callback = () => {}, {timeout = 4500, interval = 50} = {}): Promise<{}> {
+  return waitForExpect(callback, timeout, interval)
+}
+
 export async function getDocument(_page?: Page): Promise<ElementHandle> {
   // @ts-ignore
   const page: Page = _page || this

package.json

@@ -42,7 +42,8 @@
     }
   },
   "dependencies": {
-    "dom-testing-library": "^2.6.1"
+    "dom-testing-library": "^2.6.1",
+    "wait-for-expect": "^0.4.0"
   },
   "devDependencies": {
     "@patrickhulce/lint": "^2.1.3",