Added unit tests

test/unit/helper-specs.js

@@ -2,7 +2,7 @@ import {
   getAndroidPlatformAndPath,
   buildStartCmd, isShowingLockscreen, getBuildToolsDirs,
   parseAaptStrings, parseAapt2Strings,
-  extractMatchingPermissions, parseLaunchableActivityNames,
+  extractMatchingPermissions, parseLaunchableActivityNames, matchComponentName,
 } from '../../lib/helpers';
 import { withMocks } from '@appium/test-support';
 import { fs } from '@appium/support';
@@ -472,4 +472,16 @@ describe('helpers', withMocks({fs}, function (mocks) {
       names.should.be.eql([]);
     });
   });
+  describe('matchComponentName', function () {
+    it('test valid activity name', function () {
+      const activity = "ןذأצЮυπиС.נפשוקשΤπΟ.ЦοКسئοهΦΦ";
+      const names = matchComponentName(activity);
+      names.should.eql(["ןذأצЮυπиС.נפשוקשΤπΟ.ЦοКسئοهΦΦ"]);
+    });
+    it('test invalid activity name', function () {
+      const activity = "User@123";
+      const result = String(matchComponentName(activity));
+      result.should.be.eql('null');
+    });
+  });
 }));