Implement Manager#handle_pending_events

spec/uh/wm/manager_spec.rb

@@ -1,7 +1,8 @@
 module Uh
   module WM
     RSpec.describe Manager do
-      subject(:manager) { described_class.new }
+      let(:display)     { Display.new }
+      subject(:manager) { described_class.new display }
 
       describe '#initialize' do
         it 'assigns a new display' do
@@ -23,6 +24,38 @@ module Uh
           manager.grab_key :q
         end
       end
+
+      describe '#handle_pending_events' do
+        let(:event) { double 'event' }
+
+        context 'when an event is pending on display' do
+          before do
+            allow(display).to receive(:pending?).and_return true, false
+            allow(display).to receive(:next_event) { event }
+          end
+
+          it 'handles the event' do
+            expect(manager).to receive(:handle).with(event).once
+            manager.handle_pending_events
+          end
+        end
+
+        context 'when multiple events are pending on display' do
+          before do
+            allow(display).to receive(:pending?).and_return true, true, false
+            allow(display).to receive(:next_event) { event }
+          end
+
+          it 'handles all pending events' do
+            expect(manager).to receive(:handle).with(event).twice
+            manager.handle_pending_events
+          end
+        end
+      end
+
+      describe '#handle' do
+        it 'handles an event'
+      end
     end
   end
 end