1 files changed, 44 insertions, 0 deletions
diff --git a/spec/migrations/backfill_snippet_repositories_spec.rb b/spec/migrations/backfill_snippet_repositories_spec.rb
new file mode 100644
index 00000000000..e87bf7376dd
--- /dev/null
+++ b/spec/migrations/backfill_snippet_repositories_spec.rb
@@ -0,0 +1,44 @@
+# frozen_string_literal: true
+
+require 'spec_helper'
+require Rails.root.join('db', 'post_migrate', '20200420094444_backfill_snippet_repositories.rb')
+
+describe BackfillSnippetRepositories do
+  let(:users) { table(:users) }
+  let(:snippets) { table(:snippets) }
+  let(:user) { users.create(id: 1, email: 'user@example.com', projects_limit: 10, username: 'test', name: 'Test', state: 'active') }
+
+  def create_snippet(id)
+    params = {
+      id: id,
+      type: 'PersonalSnippet',
+      author_id: user.id,
+      file_name: 'foo',
+      content: 'bar'
+    }
+
+    snippets.create!(params)
+  end
+
+  it 'correctly schedules background migrations' do
+    create_snippet(1)
+    create_snippet(2)
+    create_snippet(3)
+
+    stub_const("#{described_class.name}::BATCH_SIZE", 2)
+
+    Sidekiq::Testing.fake! do
+      Timecop.freeze do
+        migrate!
+
+        expect(described_class::MIGRATION)
+          .to be_scheduled_delayed_migration(3.minutes, 1, 2)
+
+        expect(described_class::MIGRATION)
+          .to be_scheduled_delayed_migration(6.minutes, 3, 3)
+
+        expect(BackgroundMigrationWorker.jobs.size).to eq(2)
+      end
+    end
+  end
+end