Fix IE11 polyfill and some clean ups

__tests__/html/accessibility.liveRegionAttachment.adaptiveCard.speakProperty.js

@@ -1,7 +1,5 @@
 /** @jest-environment ./packages/test/harness/src/host/jest/WebDriverEnvironment.js */
 
-describe('accessibility requirement', () => {
-  describe('attachments in live region should narrate "speak" property', () => {
-    test('Adaptive Card', () => runHTML('accessibility.liveRegionAttachment.adaptiveCard.speakProperty.html'));
-  });
+describe('live region should narrate "speak" property', () => {
+  test('Adaptive Card', () => runHTML('accessibility.liveRegionAttachment.adaptiveCard.speakProperty.html'));
 });

__tests__/html/suggestedActions.stacked.buttonTextWrap.js

@@ -4,28 +4,26 @@
 // tw - textWrap
 // mh - maxHeight
 
-describe('suggested actions stacked button textWrap,', () => {
-  test('when false, should ignore maxHeight.', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=false&mh=80'));
+test('when false, should ignore maxHeight.', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=false&mh=80'));
 
-  test('when true & maxHeight is 20 & height is default, maxHeight will override height', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#tw=true&mh=20'));
+test('when true & maxHeight is 20 & height is default, maxHeight will override height', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#tw=true&mh=20'));
 
-  test('when true & maxHeight is 30, change min height.', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true&mh=30'));
+test('when true & maxHeight is 30, change min height.', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true&mh=30'));
 
-  test('when true & maxHeight is 45, change maxHeight.', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true&mh=45'));
+test('when true & maxHeight is 45, change maxHeight.', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true&mh=45'));
 
-  test('when true & maxHeight is 80, change maxHeight to fit text.', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true&mh=80'));
+test('when true & maxHeight is 80, change maxHeight to fit text.', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true&mh=80'));
 
-  test('when true & maxHeight is 100% & suggested action height is 60, height will be 60', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=60&tw=true&mh=100%25'));
+test('when true & maxHeight is 100% & suggested action height is 60, height will be 60', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=60&tw=true&mh=100%25'));
 
-  test('when true & maxHeight is 100%, change maxHeight to fit text.', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=20&tw=true&mh=100%25'));
+test('when true & maxHeight is 100%, change maxHeight to fit text.', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=20&tw=true&mh=100%25'));
 
-  test('when true & maxHeight is undefined, should default maxHeight to 100%25', () =>
-    runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true'));
-});
+test('when true & maxHeight is undefined, should default maxHeight to 100%25', () =>
+  runHTML('suggestedActions.stacked.buttonTextWrap.html#sah=40&tw=true'));

__tests__/html/transcript.navigation.behavior.proactive.adaptiveCard.js

@@ -1,6 +1,4 @@
 /** @jest-environment ./packages/test/harness/src/host/jest/WebDriverEnvironment.js */
 
-describe('transcript navigation proactive message behavior', () => {
-  test('should keep activity focus when interactive element is focused', () =>
-    runHTML('transcript.navigation.behavior.proactive.adaptiveCard'));
-});
+test('should retain active descendant and widget focus on new message', () =>
+  runHTML('transcript.navigation.behavior.proactive.adaptiveCard'));

__tests__/html/transcript.navigation.focusAttachment.enterKey.js

@@ -1,5 +1,3 @@
 /** @jest-environment ./packages/test/harness/src/host/jest/WebDriverEnvironment.js */
 
-describe('transcript navigation', () => {
-  test('should focus inside the attachment when ENTER key is pressed', () => runHTML('transcript.navigation.focusAttachment.enterKey'));
-});
+test('should focus inside the attachment on ENTER', () => runHTML('transcript.navigation.focusAttachment.enterKey'));