Polish off retry

features/docs/cli/retry_failing_tests.feature

@@ -1,32 +1,67 @@
-@wip
 Feature: Retry failing tests
 
   Retry gives you a way to get through flaky tests that usually pass after a few runs.
   This gives a development team a way forward other than disabling a valuable test.
-  
+
   - Specify max retry count in option
   - Output information to the screen
   - Output retry information in test report
-  
+
   Questions:
   use a tag for flaky tests?  Global option to retry any test that fails?
-  
+
   Background:
-    Given a scenario "Flakey" that fails once, then passes
-    And a scenario "Shakey" that fails twice, then passes
+    Given a scenario "Fails-once" that fails once, then passes
+    And a scenario "Fails-twice" that fails twice, then passes
     And a scenario "Solid" that passes
-    And a scenario "No Dice" that fails
-
-  Scenario:
-    When I run `cucumber -q --retry 1`
+    And a scenario "Fails-forever" that fails
+
+  Scenario: Retry once, so Fails-once starts to pass
+    When I run `cucumber -q --retry 1 --format summary`
+    Then it should fail with:
+      """
+      7 scenarios (5 failed, 2 passed)
+      """
+    And it should fail with:
+      """
+      Fails-forever
+        Fails-forever ✗
+        Fails-forever ✗
+
+      Solid
+        Solid ✓
+
+      Fails-once feature
+        Fails-once ✗
+        Fails-once ✓
+
+      Fails-twice feature
+        Fails-twice ✗
+        Fails-twice ✗
+      """
+
+  Scenario: Retry twice, so Fails-twice starts to pass too
+    When I run `cucumber -q --retry 2 --format summary`
     Then it should fail with:
       """
-      4 scenarios (2 passed, 2 failed)
+      9 scenarios (6 failed, 3 passed)
+      """
+    And it should fail with:
       """
+      Fails-forever
+        Fails-forever ✗
+        Fails-forever ✗
+        Fails-forever ✗
+
+      Solid
+        Solid ✓
+
+      Fails-once feature
+        Fails-once ✗
+        Fails-once ✓
 
-  Scenario:
-    When I run `cucumber -q --retry 2`
-    Then it should pass with:
+      Fails-twice feature
+        Fails-twice ✗
+        Fails-twice ✗
+        Fails-twice ✓
       """
-      4 scenarios (3 passed, 1 failed)
-      """

features/lib/step_definitions/retry_steps.rb

@@ -1,35 +1,54 @@
-Given /^a scenario "([^\"]*)" that fails once, then passes$/ do |name|
+Given /^a scenario "([^\"]*)" that fails once, then passes$/ do |full_name|
+  name = snake_case(full_name)
   write_file "features/#{name}.feature",
   <<-FEATURE
-  Feature: #{name}
-    Scenario: #{name}
+  Feature: #{full_name} feature
+    Scenario: #{full_name}
       Given it fails once, then passes
   FEATURE
 
   write_file "features/step_defnitions/#{name}_steps.rb",
   <<-STEPS
   Given(/^it fails once, then passes$/) do
-    $#{name.downcase} ||= 0
-    $#{name.downcase} += 1
-    expect($#{name.downcase}).to eql 2
+    $#{name} += 1
+    expect($#{name}).to be > 1
   end
   STEPS
+
+  write_file "features/support/#{name}_init.rb",
+  <<-INIT
+  $#{name} = 0
+  INIT
 end
 
-Given /^a scenario "([^\"]*)" that fails twice, then passes$/ do |name|
+Given /^a scenario "([^\"]*)" that fails twice, then passes$/ do |full_name|
+  name = snake_case(full_name)
   write_file "features/#{name}.feature",
   <<-FEATURE
-  Feature: #{name}
-    Scenario: #{name}
+  Feature: #{full_name} feature
+    Scenario: #{full_name}
       Given it fails twice, then passes
   FEATURE
 
   write_file "features/step_definitions/#{name}_steps.rb",
   <<-STEPS
   Given(/^it fails twice, then passes$/) do
-    $#{name.downcase} ||= 0
-    $#{name.downcase} += 1
-    expect($#{name.downcase}).to eql 3
+    $#{name} ||= 0
+    $#{name} += 1
+    expect($#{name}).to be > 2
   end
   STEPS
+
+  write_file "features/support/#{name}_init.rb",
+  <<-INIT
+  $#{name} = 0
+  INIT
+end
+
+module SnakeCase
+  def snake_case(name)
+    name.downcase.gsub(/\W/, '_')
+  end
 end
+
+World(SnakeCase)

lib/cucumber/filters.rb

@@ -6,4 +6,5 @@
 require 'cucumber/filters/prepare_world'
 require 'cucumber/filters/quit'
 require 'cucumber/filters/randomizer'
+require 'cucumber/filters/retry'
 require 'cucumber/filters/tag_limits'

lib/cucumber/runtime.rb

@@ -229,6 +229,7 @@ def filters
         filters << Cucumber::Core::Test::LocationsFilter.new(filespecs.locations)
         filters << Filters::Randomizer.new(@configuration.seed) if @configuration.randomize?
         filters << Filters::Quit.new
+        filters << Filters::Retry.new(@configuration)
         # TODO: can we just use RbLanguages's step definitions directly?
         step_match_search = StepMatchSearch.new(@support_code.ruby.method(:step_matches), @configuration)
         filters << Filters::ActivateSteps.new(step_match_search, @configuration)