feat: add step to switch frame

Author: Dumitru Deveatii

src/steps/when.ts

@@ -15,6 +15,7 @@ import { selectOptionByIndex } from '../support/action/selectOptionByIndex';
 import { setCookie } from '../support/action/setCookie';
 import { setInputField } from '../support/action/setInputField';
 import { setPromptText } from '../support/action/setPromptText';
+import { switchToFrame } from '../support/action/switchToIframe';
 
 When(
   /^I (click|doubleclick) on the (link|button|element) "([^"]*)?"$/,
@@ -95,3 +96,9 @@ When(
   /^I move to element "([^"]*)?"(?: with an offset of (\d+),(\d+))*$/,
   moveTo,
 );
+
+
+When(
+  /^I switch to iframe "([^"]*)?"$/,
+  switchToFrame,
+);

src/support/action/switchToIframe.ts

@@ -0,0 +1,3 @@
+export function switchToFrame(selector: string) {
+  browser.switchToFrame($(selector));
+}

src/support/check/checkEqualsText.ts

@@ -1,3 +1,5 @@
+import { expect } from 'chai';
+
 /**
  * Check if the given elements text is the same as the given text
  * @param  {String}   elementType   Element type (element or button)
@@ -31,11 +33,11 @@ export function checkEqualsText(elementType: string, selector: string, falseCase
     boolFalseCase = true;
   }
 
-  const text = browser[command](selector);
+  const text = $(selector)[command]();
 
   if (boolFalseCase) {
-    parsedExpectedText.should.not.equal(text);
+    expect(parsedExpectedText).to.not.equal(text);
   } else {
-    parsedExpectedText.should.equal(text);
+    expect(parsedExpectedText).to.equal(text);
   }
 }