cucumber-ruby/features/docs/cli/strict_mode.feature

Feature: Strict mode

  Using the `--strict` flag will cause cucumber to fail unless all the
  step definitions have been defined.

  Background:
    Given a file named "features/missing.feature" with:
    """
    Feature: Missing
      Scenario: Missing
        Given this step passes
    """
    And a file named "features/pending.feature" with:
    """
    Feature: Pending
      Scenario: Pending
        Given this step is pending
    """

  Scenario: Fail with --strict due to undefined step
    When I run `cucumber -q features/missing.feature --strict`
    Then it should fail with:
      """
      Feature: Missing

        Scenario: Missing
          Given this step passes
            Undefined step: "this step passes" (Cucumber::Core::Test::Result::Undefined)
            features/missing.feature:3:in `this step passes'

      Undefined Scenarios:
      cucumber features/missing.feature:2

      1 scenario (1 undefined)
      1 step (1 undefined)
      """

  Scenario: Fail with --strict due to pending step
    Given the standard step definitions
    When I run `cucumber -q features/pending.feature --strict`
    Then it should fail with:
      """
      Feature: Pending

        Scenario: Pending
          Given this step is pending
            TODO (Cucumber::Pending)
            ./features/step_definitions/steps.rb:3:in `/^this step is pending$/'
            features/pending.feature:3:in `this step is pending'

      Pending Scenarios:
      cucumber features/pending.feature:2

      1 scenario (1 pending)
      1 step (1 pending)
      """

  Scenario: Succeed with --strict
    Given the standard step definitions
    When I run `cucumber -q features/missing.feature --strict`
    Then it should pass with:
    """
    Feature: Missing

      Scenario: Missing
        Given this step passes

    1 scenario (1 passed)
    1 step (1 passed)
    """