1 files changed, 114 insertions, 0 deletions
diff --git a/spec/tasks/gitlab/snippets_rake_spec.rb b/spec/tasks/gitlab/snippets_rake_spec.rb
new file mode 100644
index 00000000000..c4bb8d7897c
--- /dev/null
+++ b/spec/tasks/gitlab/snippets_rake_spec.rb
@@ -0,0 +1,114 @@
+# frozen_string_literal: true
+
+require 'rake_helper'
+
+describe 'gitlab:snippets namespace rake task' do
+  let_it_be(:user) { create(:user)}
+  let_it_be(:migrated) { create(:personal_snippet, :repository, author: user) }
+  let(:non_migrated) { create_list(:personal_snippet, 3, author: user) }
+  let(:non_migrated_ids) { non_migrated.pluck(:id) }
+
+  before :all do
+    Rake.application.rake_require 'tasks/gitlab/snippets'
+  end
+
+  describe 'migrate' do
+    subject { run_rake_task('gitlab:snippets:migrate') }
+
+    before do
+      stub_env('SNIPPET_IDS' => non_migrated_ids.join(','))
+    end
+
+    it 'can migrate specific snippets passing ids' do
+      expect_next_instance_of(Gitlab::BackgroundMigration::BackfillSnippetRepositories) do |instance|
+        expect(instance).to receive(:perform_by_ids).with(non_migrated_ids).and_call_original
+      end
+
+      expect { subject }.to output(/All snippets were migrated successfully/).to_stdout
+    end
+
+    it 'returns the ids of those snippet that failed the migration' do
+      expect_next_instance_of(Gitlab::BackgroundMigration::BackfillSnippetRepositories) do |instance|
+        expect(instance).to receive(:perform_by_ids).with(non_migrated_ids)
+      end
+
+      expect { subject }.to output(/The following snippets couldn't be migrated:\n#{non_migrated_ids.join(',')}/).to_stdout
+    end
+
+    it 'fails if the SNIPPET_IDS env var is not set' do
+      stub_env('SNIPPET_IDS' => nil)
+
+      expect { subject }.to raise_error(RuntimeError, 'Please supply the list of ids through the SNIPPET_IDS env var')
+    end
+
+    it 'fails if the number of ids provided is higher than the limit' do
+      stub_env('LIMIT' => 2)
+
+      expect { subject }.to raise_error(RuntimeError, /The number of ids provided is higher than/)
+    end
+
+    it 'fails if the env var LIMIT is invalid' do
+      stub_env('LIMIT' => 'foo')
+
+      expect { subject }.to raise_error(RuntimeError, 'Invalid limit value')
+    end
+
+    it 'fails if the ids are invalid' do
+      stub_env('SNIPPET_IDS' => '1,2,a')
+
+      expect { subject }.to raise_error(RuntimeError, 'Invalid id provided')
+    end
+
+    it 'fails if the snippet background migration is running' do
+      Sidekiq::Testing.disable! do
+        BackgroundMigrationWorker.perform_in(180, 'BackfillSnippetRepositories', [non_migrated.first.id, non_migrated.last.id])
+        expect(Sidekiq::ScheduledSet.new).to be_one
+
+        expect { subject }.to raise_error(RuntimeError, /There are already snippet migrations running/)
+
+        Sidekiq::ScheduledSet.new.clear
+      end
+    end
+  end
+
+  describe 'migration_status' do
+    subject { run_rake_task('gitlab:snippets:migration_status') }
+
+    it 'returns a message when the background migration is not running' do
+      expect { subject }.to output("There are no snippet migrations running\n").to_stdout
+    end
+
+    it 'returns a message saying that the background migration is running' do
+      Sidekiq::Testing.disable! do
+        BackgroundMigrationWorker.perform_in(180, 'BackfillSnippetRepositories', [non_migrated.first.id, non_migrated.last.id])
+        expect(Sidekiq::ScheduledSet.new).to be_one
+
+        expect { subject }.to output("There are snippet migrations running\n").to_stdout
+
+        Sidekiq::ScheduledSet.new.clear
+      end
+    end
+  end
+
+  describe 'list_non_migrated' do
+    subject { run_rake_task('gitlab:snippets:list_non_migrated') }
+
+    it 'returns a message if all snippets are migrated' do
+      expect { subject }.to output("All snippets have been successfully migrated\n").to_stdout
+    end
+
+    context 'when there are still non migrated snippets' do
+      let!(:non_migrated) { create_list(:personal_snippet, 3, author: user) }
+
+      it 'returns a message returning the non migrated snippets ids' do
+        expect { subject }.to output(/#{non_migrated_ids}/).to_stdout
+      end
+
+      it 'returns as many snippet ids as the limit set' do
+        stub_env('LIMIT' => 1)
+
+        expect { subject }.to output(/#{non_migrated_ids[0]}/).to_stdout
+      end
+    end
+  end
+end