Update tests to document new errors for undefined dynamic steps.

features/docs/defining_steps/nested_steps.feature

@@ -127,3 +127,52 @@ Feature: Nested Steps
       1 scenario (1 failed)
       1 step (1 failed)
       """
+
+  Scenario: Undefined nested step
+    Given a file named "features/call_undefined_step_from_step_def.feature" with:
+      """
+      Feature: Calling undefined step
+
+        Scenario: Call directly
+          Given a step that calls an undefined step
+
+        Scenario: Call via another
+          Given a step that calls a step that calls an undefined step
+      """
+    And a file named "features/step_definitions/steps.rb" with:
+      """
+      Given /^a step that calls an undefined step$/ do
+        step 'this does not exist'
+      end
+
+      Given /^a step that calls a step that calls an undefined step$/ do
+        step 'a step that calls an undefined step'
+      end
+      """
+    When I run `cucumber -q features/call_undefined_step_from_step_def.feature`
+    Then it should fail with exactly:
+      """
+      Feature: Calling undefined step
+
+        Scenario: Call directly
+          Given a step that calls an undefined step
+            Undefined dynamic step: "this does not exist" (Cucumber::UndefinedDynamicStep)
+            ./features/step_definitions/steps.rb:2:in `/^a step that calls an undefined step$/'
+            features/call_undefined_step_from_step_def.feature:4:in `Given a step that calls an undefined step'
+
+        Scenario: Call via another
+          Given a step that calls a step that calls an undefined step
+            Undefined dynamic step: "this does not exist" (Cucumber::UndefinedDynamicStep)
+            ./features/step_definitions/steps.rb:2:in `/^a step that calls an undefined step$/'
+            ./features/step_definitions/steps.rb:6:in `/^a step that calls a step that calls an undefined step$/'
+            features/call_undefined_step_from_step_def.feature:7:in `Given a step that calls a step that calls an undefined step'
+
+      Failing Scenarios:
+      cucumber features/call_undefined_step_from_step_def.feature:3
+      cucumber features/call_undefined_step_from_step_def.feature:6
+
+      2 scenarios (2 failed)
+      2 steps (2 failed)
+      0m0.012s
+
+      """

spec/cucumber/rb_support/rb_step_definition_spec.rb

@@ -7,13 +7,14 @@ module RbSupport
       let(:user_interface) { double('user interface') }
       let(:support_code)   { Cucumber::Runtime::SupportCode.new(user_interface) }
       let(:rb)             { support_code.load_programming_language('rb') }
+      let(:scenario)       { double('scenario', iso_code: 'en').as_null_object }
       let(:dsl) do
         rb
         Object.new.extend(Cucumber::RbSupport::RbDsl)
       end
 
       before do
-        rb.begin_scenario(double('scenario').as_null_object)
+        rb.begin_scenario(scenario)
         $inside = nil
       end
 
@@ -87,7 +88,7 @@ def step_match(text)
 
         it "has the correct location" do
           dsl.Given /With symbol/, :with_symbol
-          expect(step_match("With symbol").file_colon_line).to eq "spec/cucumber/rb_support/rb_step_definition_spec.rb:89"
+          expect(step_match("With symbol").file_colon_line).to eq "spec/cucumber/rb_support/rb_step_definition_spec.rb:#{__LINE__-1}"
         end
       end
 
@@ -101,6 +102,18 @@ def step_match(text)
         }).to raise_error(Cucumber::UndefinedDynamicStep)
       end
 
+      it "raises UndefinedDynamicStep when an undefined step is parsed dynamically" do
+        dsl.Given(/Outside/) do
+          steps %{
+            Given Inside
+          }
+        end
+
+        expect(-> {
+          run_step "Outside"
+        }).to raise_error(Cucumber::UndefinedDynamicStep)
+      end
+
       it "allows forced pending" do
         dsl.Given(/Outside/) do
           pending("Do me!")