1 files changed, 53 insertions, 0 deletions
diff --git a/spec/migrations/remove_duplicate_dast_site_tokens_spec.rb b/spec/migrations/remove_duplicate_dast_site_tokens_spec.rb
new file mode 100644
index 00000000000..fed9941b2a4
--- /dev/null
+++ b/spec/migrations/remove_duplicate_dast_site_tokens_spec.rb
@@ -0,0 +1,53 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+
+require_migration!
+
+RSpec.describe RemoveDuplicateDastSiteTokens do
+  let(:namespaces) { table(:namespaces) }
+  let(:projects) { table(:projects) }
+  let(:dast_site_tokens) { table(:dast_site_tokens) }
+  let!(:namespace) { namespaces.create!(id: 1, name: 'group', path: 'group') }
+  let!(:project1) { projects.create!(id: 1, namespace_id: namespace.id, path: 'project1') }
+  # create non duplicate dast site token
+  let!(:dast_site_token1) { dast_site_tokens.create!(project_id: project1.id, url: 'https://gitlab.com', token: SecureRandom.uuid) }
+
+  context 'when duplicate dast site tokens exists' do
+    # create duplicate dast site token
+    let_it_be(:duplicate_url) { 'https://about.gitlab.com' }
+
+    let!(:project2) { projects.create!(id: 2, namespace_id: namespace.id, path: 'project2') }
+    let!(:dast_site_token2) { dast_site_tokens.create!(project_id: project2.id, url: duplicate_url, token: SecureRandom.uuid) }
+    let!(:dast_site_token3) { dast_site_tokens.create!(project_id: project2.id, url: 'https://temp_url.com', token: SecureRandom.uuid) }
+    let!(:dast_site_token4) { dast_site_tokens.create!(project_id: project2.id, url: 'https://other_temp_url.com', token: SecureRandom.uuid) }
+
+    before 'update URL to bypass uniqueness validation' do
+      dast_site_tokens.where(project_id: 2).update_all(url: duplicate_url)
+    end
+
+    describe 'migration up' do
+      it 'does remove duplicated dast site tokens' do
+        expect(dast_site_tokens.count).to eq(4)
+        expect(dast_site_tokens.where(project_id: 2, url: duplicate_url).size).to eq(3)
+
+        migrate!
+
+        expect(dast_site_tokens.count).to eq(2)
+        expect(dast_site_tokens.where(project_id: 2, url: duplicate_url).size).to eq(1)
+      end
+    end
+  end
+
+  context 'when duplicate dast site tokens does not exists' do
+    before do
+      dast_site_tokens.create!(project_id: 1, url: 'https://about.gitlab.com/handbook', token: SecureRandom.uuid)
+    end
+
+    describe 'migration up' do
+      it 'does remove duplicated dast site tokens' do
+        expect { migrate! }.not_to change(dast_site_tokens, :count)
+      end
+    end
+  end
+end