1 files changed, 96 insertions, 0 deletions
diff --git a/spec/tasks/gitlab/task_helpers_spec.rb b/spec/tasks/gitlab/task_helpers_spec.rb
new file mode 100644
index 00000000000..86e42d845ce
--- /dev/null
+++ b/spec/tasks/gitlab/task_helpers_spec.rb
@@ -0,0 +1,96 @@
+require 'spec_helper'
+require 'tasks/gitlab/task_helpers'
+
+class TestHelpersTest
+  include Gitlab::TaskHelpers
+end
+
+describe Gitlab::TaskHelpers do
+  subject { TestHelpersTest.new }
+
+  let(:repo) { 'https://gitlab.com/gitlab-org/gitlab-test.git' }
+  let(:clone_path) { Rails.root.join('tmp/tests/task_helpers_tests').to_s }
+  let(:tag) { 'v1.1.0' }
+
+  describe '#checkout_or_clone_tag' do
+    before do
+      allow(subject).to receive(:run_command!)
+      expect(subject).to receive(:reset_to_tag).with(tag, clone_path)
+    end
+
+    context 'target_dir does not exist' do
+      it 'clones the repo, retrieve the tag from origin, and checkout the tag' do
+        expect(subject).to receive(:clone_repo).with(repo, clone_path)
+
+        subject.checkout_or_clone_tag(tag: tag, repo: repo, target_dir: clone_path)
+      end
+    end
+
+    context 'target_dir exists' do
+      before do
+        expect(Dir).to receive(:exist?).and_return(true)
+      end
+
+      it 'fetch and checkout the tag' do
+        expect(subject).to receive(:checkout_tag).with(tag, clone_path)
+
+        subject.checkout_or_clone_tag(tag: tag, repo: repo, target_dir: clone_path)
+      end
+    end
+  end
+
+  describe '#clone_repo' do
+    it 'clones the repo in the target dir' do
+      expect(subject).
+        to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} clone -- #{repo} #{clone_path}])
+
+      subject.clone_repo(repo, clone_path)
+    end
+  end
+
+  describe '#checkout_tag' do
+    it 'clones the repo in the target dir' do
+      expect(subject).
+        to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} -C #{clone_path} fetch --tags --quiet])
+      expect(subject).
+        to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} -C #{clone_path} checkout --quiet #{tag}])
+
+      subject.checkout_tag(tag, clone_path)
+    end
+  end
+
+  describe '#reset_to_tag' do
+    let(:tag) { 'v1.1.0' }
+    before do
+      expect(subject).
+        to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} -C #{clone_path} reset --hard #{tag}])
+    end
+
+    context 'when the tag is not checked out locally' do
+      before do
+        expect(subject).
+          to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} -C #{clone_path} describe -- #{tag}]).and_raise(Gitlab::TaskFailedError)
+      end
+
+      it 'fetch origin, ensure the tag exists, and resets --hard to the given tag' do
+        expect(subject).
+          to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} -C #{clone_path} fetch origin])
+        expect(subject).
+          to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} -C #{clone_path} describe -- origin/#{tag}]).and_return(tag)
+
+        subject.reset_to_tag(tag, clone_path)
+      end
+    end
+
+    context 'when the tag is checked out locally' do
+      before do
+        expect(subject).
+          to receive(:run_command!).with(%W[#{Gitlab.config.git.bin_path} -C #{clone_path} describe -- #{tag}]).and_return(tag)
+      end
+
+      it 'resets --hard to the given tag' do
+        subject.reset_to_tag(tag, clone_path)
+      end
+    end
+  end
+end