Strip out junit screenshot path

This commit moves our business logic to strip out the build group
project path from our capybara configuration to our junit parser.

Changelog: changed

app/models/ci/pipeline.rb

@@ -994,7 +994,7 @@ module Ci
     end
 
     def latest_test_report_builds
-      latest_report_builds(Ci::JobArtifact.test_reports).preload(:project)
+      latest_report_builds(Ci::JobArtifact.test_reports).preload(:project, :job_variables, :metadata)
     end
 
     def builds_with_coverage

lib/gitlab/ci/parsers/test/junit.rb

@@ -66,6 +66,7 @@ module Gitlab
               status = ::Gitlab::Ci::Reports::TestCase::STATUS_FAILED
               system_output = data['failure']
               attachment = attachment_path(data['system_out'])
+              attachment = remove_project_prefix(attachment, job)
             elsif data.key?('error')
               status = ::Gitlab::Ci::Reports::TestCase::STATUS_ERROR
               system_output = data['error']
@@ -100,6 +101,10 @@ module Gitlab
             matches = data.match(ATTACHMENT_TAG_REGEX)
             matches[:path] if matches
           end
+
+          def remove_project_prefix(attachment, job)
+            attachment&.delete_prefix(job.variables['CI_PROJECT_DIR']&.value || '')
+          end
         end
       end
     end

spec/lib/gitlab/ci/parsers/test/junit_spec.rb

@@ -8,8 +8,14 @@ RSpec.describe Gitlab::Ci::Parsers::Test::Junit do
 
     let(:test_suite) { Gitlab::Ci::Reports::TestSuite.new('rspec') }
     let(:test_cases) { flattened_test_cases(test_suite) }
-    let(:job) { double(max_test_cases_per_report: max_test_cases) }
+    let(:variables) { [{ key: 'CI_PROJECT_DIR', value: '/builds/group/project' }] }
     let(:max_test_cases) { 0 }
+    let(:job) do
+      double(
+        max_test_cases_per_report: max_test_cases,
+        variables: Gitlab::Ci::Variables::Collection.new.concat(variables)
+      )
+    end
 
     context 'when data is JUnit style XML' do
       context 'when there are no <testcases> in <testsuite>' do
@@ -417,6 +423,27 @@ RSpec.describe Gitlab::Ci::Parsers::Test::Junit do
       end
     end
 
+    context 'when paths contains the build group project path' do
+      let(:junit) do
+        <<~EOF
+          <testsuites>
+            <testsuite>
+              <testcase classname='Calculator' name='sumTest1' time='0.01'>
+                <failure>Some failure</failure>
+                <system-out>[[ATTACHMENT|/builds/group/project/some/path.png]]</system-out>
+              </testcase>
+            </testsuite>
+          </testsuites>
+        EOF
+      end
+
+      it 'removes the builds group project path prefix' do
+        expect { subject }.not_to raise_error
+
+        expect(test_cases[0].attachment).to eq("/some/path.png")
+      end
+    end
+
     private
 
     def flattened_test_cases(test_suite)

spec/support/capybara.rb

@@ -177,7 +177,6 @@ RSpec.configure do |config|
   config.append_after do |example|
     if example.metadata[:screenshot]
       screenshot = example.metadata[:screenshot][:image] || example.metadata[:screenshot][:html]
-      screenshot&.delete_prefix!(ENV.fetch('CI_PROJECT_DIR', ''))
       example.metadata[:stdout] = %{[[ATTACHMENT|#{screenshot}]]}
     end
   end