provide source file and source start tags from rspec instrumentation

lib/datadog/ci/contrib/rspec/example.rb

@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 require_relative "../../ext/test"
+require_relative "../../utils/git"
 require_relative "ext"
 
 module Datadog
@@ -30,7 +31,9 @@ def run(example_group_instance, reporter)
                 tags: {
                   CI::Ext::Test::TAG_FRAMEWORK => Ext::FRAMEWORK,
                   CI::Ext::Test::TAG_FRAMEWORK_VERSION => CI::Contrib::RSpec::Integration.version.to_s,
-                  CI::Ext::Test::TAG_TYPE => CI::Ext::Test::TEST_TYPE
+                  CI::Ext::Test::TAG_TYPE => CI::Ext::Test::TEST_TYPE,
+                  CI::Ext::Test::TAG_SOURCE_FILE => Utils::Git.relative_to_root(metadata[:file_path]),
+                  CI::Ext::Test::TAG_SOURCE_START => metadata[:line_number].to_s
                 },
                 service: configuration[:service_name]
               ) do |test_span|

lib/datadog/ci/ext/test.rb

@@ -21,7 +21,6 @@ module Test
         TAG_COMMAND = "test.command"
         TAG_SOURCE_FILE = "test.source.file"
         TAG_SOURCE_START = "test.source.start"
-        TAG_SOURCE_END = "test.source.end"
 
         TEST_TYPE = "test"
 

sig/datadog/ci/ext/test.rbs

@@ -30,8 +30,6 @@ module Datadog
 
         TAG_SOURCE_START: String
 
-        TAG_SOURCE_END: String
-
         TAG_TEST_SESSION_ID: String
 
         TAG_TEST_MODULE_ID: String

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

@@ -42,6 +42,11 @@ def with_new_rspec_environment
       Datadog::CI::Contrib::RSpec::Integration.version.to_s
     )
     expect(first_test_span.get_tag(Datadog::CI::Ext::Test::TAG_STATUS)).to eq(Datadog::CI::Ext::Test::Status::PASS)
+
+    expect(first_test_span.get_tag(Datadog::CI::Ext::Test::TAG_SOURCE_FILE)).to eq(
+      "spec/datadog/ci/contrib/rspec/instrumentation_spec.rb"
+    )
+    expect(first_test_span.get_tag(Datadog::CI::Ext::Test::TAG_SOURCE_START)).to eq("26")
   end
 
   it "creates spans for several examples" do
@@ -198,6 +203,26 @@ def expect_failure
     end
   end
 
+  context "with git root changed" do
+    before do
+      expect(Datadog::CI::Utils::Git).to receive(:root).and_return("#{Dir.pwd}/spec")
+    end
+
+    it "provides source file path relative to git root" do
+      with_new_rspec_environment do
+        RSpec.describe "some test" do
+          it "foo" do
+            # DO NOTHING
+          end
+        end.tap(&:run)
+      end
+
+      expect(first_test_span.get_tag(Datadog::CI::Ext::Test::TAG_SOURCE_FILE)).to eq(
+        "datadog/ci/contrib/rspec/instrumentation_spec.rb"
+      )
+    end
+  end
+
   context "with rspec runner" do
     def devnull
       File.new("/dev/null", "w")