Allow slashes in release tags

Closes https://gitlab.com/gitlab-org/gitlab/issues/39119

See merge request https://gitlab.com/gitlab-org/gitlab/merge_requests/22527

app/presenters/release_presenter.rb

@@ -40,7 +40,7 @@ class ReleasePresenter < Gitlab::View::Presenter::Delegated
   def evidence_file_path
     return unless release.evidence.present?
 
-    evidence_project_release_url(project, tag, format: :json)
+    evidence_project_release_url(project, release.to_param, format: :json)
   end
 
   private

changelogs/unreleased/39119-actioncontroller-urlgenerationerror-no-route-matches-action-evidenc.yml

+---
+title: Fix releases page when tag contains a slash
+merge_request: 22527
+author:
+type: fixed

spec/features/projects/releases/user_views_releases_spec.rb

@@ -57,4 +57,14 @@ describe 'User views releases', :js do
       expect(page).to have_content('Upcoming Release')
     end
   end
+
+  context 'with a tag containing a slash' do
+    it 'sees the release' do
+      release = create :release, :with_evidence, project: project, tag: 'debian/2.4.0-1'
+      visit project_releases_path(project)
+
+      expect(page).to have_content(release.name)
+      expect(page).to have_content(release.tag)
+    end
+  end
 end

spec/presenters/release_presenter_spec.rb

@@ -96,4 +96,28 @@ describe ReleasePresenter do
       it { is_expected.to be_nil }
     end
   end
+
+  describe '#evidence_file_path' do
+    subject { presenter.evidence_file_path }
+
+    context 'without evidence' do
+      it { is_expected.to be_falsy }
+    end
+
+    context 'with evidence' do
+      let(:release) { create :release, :with_evidence, project: project }
+
+      specify do
+        is_expected.to match /#{evidence_project_release_url(project, release.tag, format: :json)}/
+      end
+    end
+
+    context 'when a tag contains a slash' do
+      let(:release) { create :release, :with_evidence, project: project, tag: 'debian/2.4.0-1' }
+
+      specify do
+        is_expected.to match /#{evidence_project_release_url(project, CGI.escape(release.tag), format: :json)}/
+      end
+    end
+  end
 end

spec/requests/api/releases_spec.rb

@@ -115,6 +115,16 @@ describe API::Releases do
       end
     end
 
+    context 'when tag contains a slash' do
+      let!(:release) { create(:release, project: project, tag: 'debian/2.4.0-1', description: "debian/2.4.0-1") }
+
+      it 'returns 200 HTTP status' do
+        get api("/projects/#{project.id}/releases", maintainer)
+
+        expect(response).to have_gitlab_http_status(:ok)
+      end
+    end
+
     context 'when user is a guest' do
       let!(:release) do
         create(:release,