1 files changed, 81 insertions, 0 deletions
diff --git a/spec/tasks/gitlab/workhorse_rake_spec.rb b/spec/tasks/gitlab/workhorse_rake_spec.rb
new file mode 100644
index 00000000000..6de66c3cf07
--- /dev/null
+++ b/spec/tasks/gitlab/workhorse_rake_spec.rb
@@ -0,0 +1,81 @@
+require 'rake_helper'
+
+describe 'gitlab:workhorse namespace rake task' do
+  before :all do
+    Rake.application.rake_require 'tasks/gitlab/workhorse'
+  end
+
+  describe 'install' do
+    let(:repo) { 'https://gitlab.com/gitlab-org/gitlab-workhorse.git' }
+    let(:clone_path) { Rails.root.join('tmp/tests/gitlab-workhorse').to_s }
+    let(:tag) { "v#{File.read(Rails.root.join(Gitlab::Workhorse::VERSION_FILE)).chomp}" }
+    before do
+      allow(ENV).to receive(:[])
+    end
+
+    context 'no dir given' do
+      it 'aborts and display a help message' do
+        # avoid writing task output to spec progress
+        allow($stderr).to receive :write
+        expect { run_rake_task('gitlab:workhorse:install') }.to raise_error /Please specify the directory where you want to install gitlab-workhorse/
+      end
+    end
+
+    context 'when an underlying Git command fail' do
+      it 'aborts and display a help message' do
+        expect_any_instance_of(Object).
+          to receive(:checkout_or_clone_tag).and_raise 'Git error'
+
+        expect { run_rake_task('gitlab:workhorse:install', clone_path) }.to raise_error 'Git error'
+      end
+    end
+
+    describe 'checkout or clone' do
+      before do
+        expect(Dir).to receive(:chdir).with(clone_path)
+      end
+
+      it 'calls checkout_or_clone_tag with the right arguments' do
+        expect_any_instance_of(Object).
+          to receive(:checkout_or_clone_tag).with(tag: tag, repo: repo, target_dir: clone_path)
+
+        run_rake_task('gitlab:workhorse:install', clone_path)
+      end
+    end
+
+    describe 'gmake/make' do
+      before do
+        FileUtils.mkdir_p(clone_path)
+        expect(Dir).to receive(:chdir).with(clone_path).and_call_original
+      end
+
+      context 'gmake is available' do
+        before do
+          expect_any_instance_of(Object).to receive(:checkout_or_clone_tag)
+          allow_any_instance_of(Object).to receive(:run_command!).with(['gmake']).and_return(true)
+        end
+
+        it 'calls gmake in the gitlab-workhorse directory' do
+          expect(Gitlab::Popen).to receive(:popen).with(%w[which gmake]).and_return(['/usr/bin/gmake', 0])
+          expect_any_instance_of(Object).to receive(:run_command!).with(['gmake']).and_return(true)
+
+          run_rake_task('gitlab:workhorse:install', clone_path)
+        end
+      end
+
+      context 'gmake is not available' do
+        before do
+          expect_any_instance_of(Object).to receive(:checkout_or_clone_tag)
+          allow_any_instance_of(Object).to receive(:run_command!).with(['make']).and_return(true)
+        end
+
+        it 'calls make in the gitlab-workhorse directory' do
+          expect(Gitlab::Popen).to receive(:popen).with(%w[which gmake]).and_return(['', 42])
+          expect_any_instance_of(Object).to receive(:run_command!).with(['make']).and_return(true)
+
+          run_rake_task('gitlab:workhorse:install', clone_path)
+        end
+      end
+    end
+  end
+end