reduce dsl, prefer fetch/set

spec/lib/capistrano/dsl_spec.rb

@@ -0,0 +1,51 @@
+require 'spec_helper'
+
+module Capistrano
+
+  class DummyClass
+    include DSL
+  end
+
+  describe DSL do
+    let(:dsl) { DummyClass.new }
+
+    describe '#t' do
+      before do
+        I18n.expects(:t).with(:phrase, {count: 2}, scope: :capistrano)
+      end
+
+      it 'delegates to I18n' do
+        dsl.t(:phrase, count: 2)
+      end
+    end
+
+    describe '#stages' do
+      before do
+        Dir.expects(:[]).with('config/deploy/*.rb').
+          returns(['config/deploy/staging.rb', 'config/deploy/production.rb'])
+      end
+
+      it 'returns a list of defined stages' do
+        expect(dsl.stages).to eq %w{staging production}
+      end
+    end
+
+    describe '#stage_set?' do
+      subject { dsl.stage_set? }
+
+      context 'stage is set' do
+        before do
+          dsl.set(:stage, :sandbox)
+        end
+        it { should be_true }
+      end
+
+      context 'stage is not set' do
+        before do
+          dsl.set(:stage, nil)
+        end
+        it { should be_false }
+      end
+    end
+  end
+end