Implement basic Manager

spec/uh/wm/manager_spec.rb

@@ -0,0 +1,20 @@
+module Uh
+  module WM
+    RSpec.describe Manager do
+      subject(:manager) { described_class.new }
+
+      describe '#initialize' do
+        it 'assigns a new display' do
+          expect(manager.display).to be_a Display
+        end
+      end
+
+      describe '#connect' do
+        it 'opens the display' do
+          expect(manager.display).to receive :open
+          manager.connect
+        end
+      end
+    end
+  end
+end