1 files changed, 96 insertions, 0 deletions
diff --git a/spec/workers/error_tracking_issue_link_worker_spec.rb b/spec/workers/error_tracking_issue_link_worker_spec.rb
new file mode 100644
index 00000000000..cf16e4a0803
--- /dev/null
+++ b/spec/workers/error_tracking_issue_link_worker_spec.rb
@@ -0,0 +1,96 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+describe ErrorTrackingIssueLinkWorker do
+  let_it_be(:error_tracking) { create(:project_error_tracking_setting) }
+  let_it_be(:project) { error_tracking.project }
+  let_it_be(:issue) { create(:issue, project: project) }
+  let_it_be(:sentry_issue) { create(:sentry_issue, issue: issue) }
+
+  let(:repo) do
+    Gitlab::ErrorTracking::Repo.new(
+      status: 'active',
+      integration_id: 66666,
+      project_id: project.id
+    )
+  end
+
+  subject { described_class.new.perform(issue.id) }
+
+  describe '#perform' do
+    it 'creates a link between an issue and a Sentry issue in Sentry' do
+      expect_next_instance_of(Sentry::Client) do |client|
+        expect(client).to receive(:repos).with('sentry-org').and_return([repo])
+        expect(client)
+          .to receive(:create_issue_link)
+          .with(66666, sentry_issue.sentry_issue_identifier, issue)
+          .and_return(true)
+      end
+
+      expect(subject).to be true
+    end
+
+    shared_examples_for 'makes no external API requests' do
+      it 'takes no action' do
+        expect_any_instance_of(Sentry::Client).not_to receive(:repos)
+        expect_any_instance_of(Sentry::Client).not_to receive(:create_issue_link)
+
+        expect(subject).to be nil
+      end
+    end
+
+    shared_examples_for 'terminates after one API request' do
+      it 'takes no action' do
+        expect_next_instance_of(Sentry::Client) do |client|
+          expect(client).to receive(:repos).with('sentry-org').and_return([repo])
+        end
+        expect_any_instance_of(Sentry::Client).not_to receive(:create_issue_link)
+
+        expect(subject).to be nil
+      end
+    end
+
+    context 'when issue is unavailable' do
+      let(:issue) { double('issue', id: -3) }
+
+      it_behaves_like 'makes no external API requests'
+    end
+
+    context 'when project does not have error tracking configured' do
+      let(:issue) { build(:project) }
+
+      it_behaves_like 'makes no external API requests'
+    end
+
+    context 'when the issue is not linked to a Sentry issue in GitLab' do
+      let(:issue) { build(:issue, project: project) }
+
+      it_behaves_like 'makes no external API requests'
+    end
+
+    context 'when Sentry disabled the GitLab integration' do
+      let(:repo) do
+        Gitlab::ErrorTracking::Repo.new(
+          status: 'inactive',
+          integration_id: 66666,
+          project_id: project.id
+        )
+      end
+
+      it_behaves_like 'terminates after one API request'
+    end
+
+    context 'when Sentry the GitLab integration is for another project' do
+      let(:repo) do
+        Gitlab::ErrorTracking::Repo.new(
+          status: 'active',
+          integration_id: 66666,
+          project_id: -3
+        )
+      end
+
+      it_behaves_like 'terminates after one API request'
+    end
+  end
+end