Fail fast feature

features/docs/cli/fail_fast.feature

@@ -0,0 +1,45 @@
+Feature: Fail fast
+
+  The --fail-fast flag causes Cucumber to exit immediately after the first 
+  scenario fails.
+
+  Scenario: When a scenario fails
+    Given a file named "features/bad.feature" with:
+      """
+      Feature: Bad
+        Scenario: Failing
+          Given this step fails
+      """
+    And a file named "features/good.feature" with:
+    """
+    Feature: Good
+      Scenario: Passing
+        Given this step passes
+    """
+    And the standard step definitions
+    When I run `cucumber --fail-fast`
+    Then it should fail
+    And the output should contain:
+    """
+    1 scenario (1 failed)
+    """
+
+  Scenario: When all the scenarios pass
+    Given a file named "features/first.feature" with:
+      """
+      Feature: first feature
+        Scenario: foo first
+          Given this step passes
+        Scenario: bar first
+          Given this step passes
+      """
+    And a file named "features/second.feature" with:
+      """
+      Feature: second
+        Scenario: foo second
+          Given this step passes
+        Scenario: bar second
+          Given this step passes
+      """
+    When I run `cucumber --fail-fast`
+    Then it should pass