Feature: Coverage threshold configuration enforcement

  The project enforces a minimum 97% code coverage threshold.
  This is configured in pyproject.toml and enforced by the
  nox coverage_report session.

  Scenario: Coverage configuration exists in pyproject.toml
    Given the pyproject toml file is loaded for coverage check
    Then the coverage run section should exist
    And the coverage source should include "src"
    And the coverage branch tracking should be enabled

  Scenario: Coverage threshold is at least 97 percent in noxfile
    Given the noxfile py is loaded for coverage check
    Then the noxfile should contain a fail-under threshold of at least 97

  Scenario: Coverage report session exists in noxfile
    Given the noxfile py is loaded for coverage check
    Then the noxfile should define a coverage_report session

  Scenario: Coverage HTML output directory is configured
    Given the pyproject toml file is loaded for coverage check
    Then the coverage html directory should be "build/htmlcov"

  Scenario: Coverage XML output path is configured
    Given the pyproject toml file is loaded for coverage check
    Then the coverage xml output should be "build/coverage.xml"

  Scenario: Coverage data file path is configured
    Given the pyproject toml file is loaded for coverage check
    Then the coverage data file should be "build/.coverage"

  Scenario: Coverage omits test directories
    Given the pyproject toml file is loaded for coverage check
    Then the coverage omit patterns should include "features/*"
    And the coverage omit patterns should include "*/tests/*"

  Scenario: CI workflow enforces coverage via nox session
    Given the ci workflow file is loaded for coverage check
    Then the ci workflow should reference nox coverage_report session

  Scenario: Nightly workflow uses at least 85 percent threshold
    Given the nightly quality workflow file is loaded for coverage check
    Then the nightly workflow should use a fail-under of at least 85