Move pane focus handling tests to pane-element-spec

spec/pane-element-spec.coffee

@@ -142,3 +142,23 @@ describe "PaneElement", ->
         expect(item2.element.parentElement).toBe paneElement.itemViews
         pane.destroyItem(item2)
         expect(item2.element.parentElement).toBeNull()
+
+  describe "when the pane element is focused", ->
+    it "transfers focus to the active view", ->
+      item = document.createElement('div')
+      item.tabIndex = -1
+      pane.activateItem(item)
+      jasmine.attachToDOM(paneElement)
+
+      expect(document.activeElement).toBe document.body
+      paneElement.focus()
+      expect(document.activeElement).toBe item
+
+    it "makes the pane active", ->
+      pane.splitRight()
+      expect(pane.isActive()).toBe false
+
+      jasmine.attachToDOM(paneElement)
+      paneElement.focus()
+
+      expect(pane.isActive()).toBe true

spec/pane-view-spec.coffee

@@ -46,22 +46,6 @@ describe "PaneView", ->
     deserializerDisposable.dispose()
     jasmine.restoreDeprecationsSnapshot()
 
-  describe "when the pane is focused", ->
-    beforeEach ->
-      container.attachToDom()
-
-    it "transfers focus to the active view", ->
-      focusHandler = jasmine.createSpy("focusHandler")
-      pane.getActiveItem().on 'focus', focusHandler
-      pane.focus()
-      expect(focusHandler).toHaveBeenCalled()
-
-    it "makes the pane active", ->
-      paneModel.splitRight(items: [pane.copyActiveItem()])
-      expect(paneModel.isActive()).toBe false
-      pane.focus()
-      expect(paneModel.isActive()).toBe true
-
   describe "when a pane is split", ->
     it "builds the appropriateatom-pane-axis.horizontal and pane-column views", ->
       pane1 = pane