Add GitLeft::KeyParser specs.

spec/lib/key_parser_spec.rb

@@ -0,0 +1,25 @@
+require 'spec_helper'
+
+describe GitLeft::KeyParser do
+  describe '#action' do
+    subject { described_class.new(input).action }
+
+    context 'with h input' do
+      let(:input) { 'h' }
+
+      it { is_expected.to eq(:delete) }
+    end
+
+    context 'with l input' do
+      let(:input) { 'l' }
+
+      it { is_expected.to eq(:skip) }
+    end
+
+    context 'with anything else' do
+      let(:input) { 'o' }
+
+      it { is_expected.to eq(:quit) }
+    end
+  end
+end