1 files changed, 42 insertions, 0 deletions
diff --git a/spec/lib/gitlab/quick_actions/substitution_definition_spec.rb b/spec/lib/gitlab/quick_actions/substitution_definition_spec.rb
new file mode 100644
index 00000000000..1bb8bc51c96
--- /dev/null
+++ b/spec/lib/gitlab/quick_actions/substitution_definition_spec.rb
@@ -0,0 +1,42 @@
+require 'spec_helper'
+
+describe Gitlab::QuickActions::SubstitutionDefinition do
+  let(:content) do
+    <<EOF
+Hello! Let's do this!
+/sub_name I like this stuff
+EOF
+  end
+  subject do
+    described_class.new(:sub_name, action_block: proc { |text| "#{text} foo" })
+  end
+
+  describe '#perform_substitution!' do
+    it 'returns nil if content is nil' do
+      expect(subject.perform_substitution(self, nil)).to be_nil
+    end
+
+    it 'performs the substitution by default' do
+      expect(subject.perform_substitution(self, content)).to eq <<EOF
+Hello! Let's do this!
+I like this stuff foo
+EOF
+    end
+  end
+
+  describe '#match' do
+    it 'checks the content for the command' do
+      expect(subject.match(content)).to be_truthy
+    end
+
+    it 'returns the match data' do
+      data = subject.match(content)
+      expect(data).to be_a(MatchData)
+      expect(data[1]).to eq('I like this stuff')
+    end
+
+    it 'is nil if content does not have the command' do
+      expect(subject.match('blah')).to be_falsey
+    end
+  end
+end