Testing in Flutter

Sep 19 2023 · Dart 2.19.3, Flutter 3.7.6, Android Studio 2021.3.1, Visual Studio Code 1.7.4

Part 6: Generate Coverage Report

20. Add Test Case for Missed Code

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As you can see in the code coverage report, we have missed some code. So let’s add tests for that code.

test('json fromJson test', () {
  final data = jsonDecode(mockQuotes);
  final quote =
      data['quotes'].map((quote) => Quotes.fromJson(quote)).toList();
  expect(quote[0].id, 1);
  expect(quote[0].author, 'Shree');
  expect(quote[0].quote, 'I am best');

flutter test --update-goldens --coverage

lcov --capture --directory ./coverage --output-file lcov.info

genhtml ./coverage/lcov.info --output-directory ./coverage/html

cmd /k "flutter test --update-goldens --coverage & perl C:\ProgramData\chocolatey\lib\lcov\tools\bin\lcov -o coverage\lcov.info & perl C:\ProgramData\chocolatey\lib\lcov\tools\bin\genhtml -o coverage\html coverage\lcov.info"
sh coverage_report.sh