add cucumber feature with examples to instrumentation specs

spec/datadog/ci/contrib/cucumber/features/step_definitions/steps.rb

@@ -5,3 +5,11 @@
 Then "failure" do
   expect(1 + 1).to eq(3)
 end
+
+Then(/I add (-?\d+) and (-?\d+)/) do |n1, n2|
+  @res = n1.to_i + n2.to_i
+end
+
+Then(/the result should be (-?\d+)/) do |res|
+  expect(@res).to eq(res.to_i)
+end

spec/datadog/ci/contrib/cucumber/features/with_parameters.feature

@@ -0,0 +1,12 @@
+Feature: Datadog integration for parametrized tests
+
+  Scenario Outline: scenario with examples
+    Given datadog
+    When I add <num1> and <num2>
+    Then the result should be <total>
+
+  Examples:
+    | num1 | num2 | total |
+    | -1   | 1    | 0     |
+    | 1    | 1    | 2     |
+    | 0    | 0    | 0     |

spec/datadog/ci/contrib/cucumber/instrumentation_spec.rb

@@ -10,6 +10,9 @@
     let(:integration_options) { {service_name: "jalapenos"} }
   end
 
+  let(:cucumber_8_or_above) { Gem::Version.new("8.0.0") <= Datadog::CI::Contrib::Cucumber::Integration.version }
+  let(:cucumber_4_or_above) { Gem::Version.new("4.0.0") <= Datadog::CI::Contrib::Cucumber::Integration.version }
+
   let(:run_id) { rand(1..2**64 - 1) }
   let(:steps_file_definition_path) { "spec/datadog/ci/contrib/cucumber/features/step_definitions/steps.rb" }
   let(:steps_file_for_run_path) do
@@ -35,12 +38,10 @@
   let(:kernel) { double(:kernel) }
 
   let(:cli) do
-    cucumber_8 = Gem::Version.new("8.0.0")
-
-    if Datadog::CI::Contrib::Cucumber::Integration.version < cucumber_8
-      Cucumber::Cli::Main.new(args, stdin, stdout, stderr, kernel)
-    else
+    if cucumber_8_or_above
       Cucumber::Cli::Main.new(args, stdout, stderr, kernel)
+    else
+      Cucumber::Cli::Main.new(args, stdin, stdout, stderr, kernel)
     end
   end
 
@@ -202,14 +203,41 @@
     end
   end
 
+  context "executing a scenario with examples" do
+    let(:feature_file_to_run) { "with_parameters.feature" }
+
+    it "a single test suite with a test span for each example" do
+      expect(test_spans.count).to eq(3)
+      expect(test_suite_spans.count).to eq(1)
+
+      test_spans.each_with_index do |span, index|
+        # naming for scenarios changed since cucumber 4
+        if cucumber_4_or_above
+          expect(span.get_tag(Datadog::CI::Ext::Test::TAG_NAME)).to eq("scenario with examples")
+        else
+          expect(span.get_tag(Datadog::CI::Ext::Test::TAG_NAME)).to eq(
+            "scenario with examples, Examples (##{index + 1})"
+          )
+        end
+        expect(span.get_tag(Datadog::CI::Ext::Test::TAG_SUITE)).to eq(
+          "spec/datadog/ci/contrib/cucumber/features/with_parameters.feature"
+        )
+        expect(span.get_tag(Datadog::CI::Ext::Test::TAG_TEST_SUITE_ID)).to eq(test_suite_span.id.to_s)
+        expect(span.get_tag(Datadog::CI::Ext::Test::TAG_STATUS)).to eq(
+          Datadog::CI::Ext::Test::Status::PASS
+        )
+      end
+    end
+  end
+
   context "executing several features at once" do
     let(:expected_test_run_code) { 2 }
 
     let(:passing_test_suite) { test_suite_spans.find { |span| span.name =~ /passing/ } }
     let(:failing_test_suite) { test_suite_spans.find { |span| span.name =~ /failing/ } }
 
     it "creates a test suite span for each feature" do
-      expect(test_suite_spans.count).to eq(2)
+      expect(test_suite_spans.count).to eq(3)
       expect(passing_test_suite.get_tag(Datadog::CI::Ext::Test::TAG_STATUS)).to eq(
         Datadog::CI::Ext::Test::Status::PASS
       )