Refactor code structure and remove redundant code blocks for improved readability and maintainability

Author: Chinmay-KB

.github/workflows/dart.yml

@@ -29,7 +29,14 @@ jobs:
       # package:test for this step to succeed. Note that Flutter projects will
       # want to change this to 'flutter test'.
       - name: Run tests
-        run: dart run test_coverage #test --coverage=coverage
+        run: dart test --coverage=coverage
+
+      - name: Install coverage tool
+        run: dart pub global activate coverage
+
+      - name: Convert coverage to lcov
+        run: dart pub global run coverage:format_coverage --lcov -i coverage -o coverage/lcov.info --report-on=lib
+
       - uses: codecov/codecov-action@v1.0.2
         with:
           token: ${{secrets.CODECOV_TOKEN}} #required