async / await applied

README.md

@@ -372,12 +372,12 @@ const testableUtils = require('testable-utils');
 const fireNow = testableUtils.isLocal || testableUtils.isSmokeTest;
 
 describe('Load Url Requested in Event', function() {
-  it('should load url', function() {
+  it('should load url', async () => {
     browser.testableLogInfo('Waiting on load-url event');
     // no timeout (0), use Google url for local/smoke testing
     const url = browser.testableWaitForEvent('load-url', 0, 'https://google.com');
-    browser.url(url);
-    browser.testableScreenshot('Requested Url');
+    await browser.url(url);
+    await browser.testableScreenshot('Requested Url');
   });
 });
 ```
@@ -435,7 +435,7 @@ Note that all the Webdriver.io commands can be used in a synchronous fashion.
 
 ### Screenshots
 
-One command that has no `testable-utils` equivalent is `browser.testableScreenshot(name)`. This command takes a screenshot and puts it in the output directory to be collected as part of the test results. It also includes a prefix to make it easier to identify: `[region]-[chunk]-[user]-[iteration]-[name].png`. Tests are broken up into chunks, and within each chunk users and iterations are numbered starting at 0. So for example `us-east-1-123-0-0-MyHomePage.png` would be chunk id 123, first user, first iteration, image name `MyHomePage`.
+One command that has no `testable-utils` equivalent is `await browser.testableScreenshot(name)`. This command takes a screenshot and puts it in the output directory to be collected as part of the test results. It also includes a prefix to make it easier to identify: `[region]-[chunk]-[user]-[iteration]-[name].png`. Tests are broken up into chunks, and within each chunk users and iterations are numbered starting at 0. So for example `us-east-1-123-0-0-MyHomePage.png` would be chunk id 123, first user, first iteration, image name `MyHomePage`.
 
 ### Command Mappings
 

index.d.ts

@@ -170,7 +170,7 @@ declare global {
             testableBarrier: (name: string, value?: any) => any;
             testableInfo: () => any;
 
-            testableScreenshot: (name: string) => any;
+            testableScreenshot: (name: string) => Promise<any>;
             testableStopwatch: (code: Function, metricName?: string, resource?: string) => any;
             testableWaitForEvent: (eventName: string, timeout?: number, defaultVal?: any) => any;
 

lib/wdio-commands.js

@@ -130,9 +130,9 @@ function registerInfoCommands(browser, info, isLocal) {
 		browser.addCommand('testableInfo', function () {
 			return info;
 		});
-		browser.addCommand('testableScreenshot', function(name) {
+		browser.addCommand('testableScreenshot', async function(name) {
 			const path = pathModule.join(process.env.OUTPUT_DIR || '.', name + '.png');
-			browser.saveScreenshot(path);
+			await browser.saveScreenshot(path);
 			return path;
 		});
 	}

package.json

@@ -1,6 +1,6 @@
 {
   "name": "testable-utils",
-  "version": "0.5.11",
+  "version": "0.5.12",
   "description": "Utilities for Testable scripts",
   "author": "Avi Stramer",
   "keywords": [