Codecov CLI can improve test collection when pytest is not in quite mode

[rohan-at-sentry]

Tests collections get malformed when pytest is not in quite mode.

[giovanni-guidini]

When you run python -m pytest --collect-only -q the output looks something like below. We parse that, and actually use the lines as test labels.

core/tests/test_helpers.py::test_select_emotion_emoji
core/tests/test_helpers.py::test_select_emotion_default
core/tests/test_helpers.py::test_select_emotion_no_support_to_emoji
core/tests/test_helpers.py::test_select_emotion_fallback
[...]
fruits/tests/test_fruits_menu.py::TestFruitsMenu::test_menu_options

52 tests collected in 0.03s

If you don't use the -q flag though the output looks like below. Obviously harder to parse, so we don't parse that yet.

However there are many ways to config pytest, and it's possible that a user will have something to override the -q flag. So we need to able to parse the verbose version as well.

=============================================================== test session starts ================================================================
platform darwin -- Python 3.10.3, pytest-7.4.2, pluggy-1.3.0
rootdir: /Users/giovannimguidini/Projects/GitHub/components-demo
plugins: anyio-4.0.0, cov-4.1.0, mock-3.11.1, xdist-3.3.1
collected 52 items                                                                                                                                 

<Package tests>
  <Module test_helpers.py>
    <Function test_select_emotion_emoji>
    <Function test_select_emotion_default>
    <Function test_select_emotion_no_support_to_emoji>
    <Function test_select_emotion_fallback>
    <UnitTestCase TestGetFruitClass>
      <TestCaseFunction test_get_fruit_class_emoji_support_false>
      <TestCaseFunction test_get_fruit_class_emoji_support_no>
      <TestCaseFunction test_get_fruit_class_emoji_support_true>
      <TestCaseFunction test_get_fruit_class_emoji_support_yes>
    <UnitTestCase TestListAvailableMethods>
      <TestCaseFunction test_list_available_methods_with_instance>
      <TestCaseFunction test_list_available_methods_with_test_class>
 [...]
  <Module test_fruits_menu.py>
    <UnitTestCase TestFruitsMenu>
      <TestCaseFunction test_init_ascii>
      <TestCaseFunction test_init_emoji>
      <TestCaseFunction test_menu_choice_apple>
      <TestCaseFunction test_menu_options>

=========================================================== 52 tests collected in 0.03s ============================================================