Fix waitUntilExists for WebdriverIO (#934)

* [Puppeteer] Exit gracefully after test completion

* [Puppeteer] Add ability to set user-agent

* [Puppeteer] Add keepCookies and keepBrowserState

* [Puppeteer] Update documentation

* [WebdriverIO] Fix waitUntilExists and update documentation

Author: abidhahmed

lib/helper/WebDriverIO.js

@@ -27,20 +27,20 @@ let withinStore = {};
  *
  * This helper should be configured in codecept.json
  *
- * * `url` - base url of website to be tested
- * * `browser` - browser in which perform testing
- * * `restart` (optional, default: true) - restart browser between tests.
- * * `smartWait`: (optional) **enables [SmartWait](http://codecept.io/acceptance/#smartwait)**; wait for additional milliseconds for element to appear. Enable for 5 secs: "smartWait": 5000
- * * `disableScreenshots` (optional, default: false)  - don't save screenshot on failure
- * * `uniqueScreenshotNames` (optional, default: false)  - option to prevent screenshot override if you have scenarios with the same name in different suites
- * * `keepBrowserState` (optional, default: false)  - keep browser state between tests when `restart` set to false.
- * * `keepCookies` (optional, default: false)  - keep cookies between tests when `restart` set to false.
+ * * `url`: base url of website to be tested.
+ * * `browser`: browser in which to perform testing.
+ * * `restart`: (optional, default: true) - restart browser between tests.
+ * * `smartWait`: (optional) **enables [SmartWait](http://codecept.io/acceptance/#smartwait)**; wait for additional milliseconds for element to appear. Enable for 5 secs: "smartWait": 5000.
+ * * `disableScreenshots`: (optional, default: false) - don't save screenshots on failure.
+ * * `uniqueScreenshotNames`: (optional, default: false) - option to prevent screenshot override if you have scenarios with the same name in different suites.
+ * * `keepBrowserState`: (optional, default: false) - keep browser state between tests when `restart` is set to false.
+ * * `keepCookies`: (optional, default: false) - keep cookies between tests when `restart` set to false.
  * * `windowSize`: (optional) default window size. Set to `maximize` or a dimension in the format `640x480`.
- * * `waitForTimeout`: (option) sets default wait time in *ms* for all `wait*` functions. 1000 by default;
+ * * `waitForTimeout`: (option) sets default wait time in *ms* for all `wait*` functions. 1000 by default.
  * * `desiredCapabilities`: Selenium's [desired
- * capabilities](https://github.com/SeleniumHQ/selenium/wiki/DesiredCapabilities)
- * * `manualStart` (optional, default: false) - do not start browser before a test, start it manually inside a helper
- * with `this.helpers["WebDriverIO"]._startBrowser()`
+ * capabilities](https://github.com/SeleniumHQ/selenium/wiki/DesiredCapabilities).
+ * * `manualStart`: (optional, default: false) - do not start browser before a test, start it manually inside a helper
+ * with `this.helpers["WebDriverIO"]._startBrowser()`.
  * * `timeouts`: [WebDriverIO timeouts](http://webdriver.io/guide/testrunner/timeouts.html) defined as hash.
  *
  * Example:
@@ -1424,7 +1424,8 @@ class WebDriverIO extends Helper {
    * Appium: support
    */
   async waitUntilExists(locator, sec = null) {
-    return this.waitForStalenessOf(locator, sec);
+    const aSec = sec || this.options.waitForTimeout;
+    return this.browser.waitForExist(locator, aSec * 1000);
   }