Add tests

Author: kuychaco

spec/tree-view-spec.coffee

@@ -614,12 +614,18 @@ describe "TreeView", ->
           expect(activePaneItem.isPending()).toBe true
 
         it "terminates pending state on the double-click and focuses file", ->
-          sampleJs.trigger clickEvent(originalEvent: {detail: 1})
           sampleJs.trigger clickEvent(originalEvent: {detail: 2})
           expect(atom.views.getView(activePaneItem)).toHaveFocus()
           waitsFor ->
             activePaneItem.isPending() is false
 
+        it "keeps focus on tree-view if the file is the active pane item", ->
+          sampleJs.trigger clickEvent(originalEvent: {detail: 1})
+          expect(treeView).toHaveFocus()
+
+          sampleJs.trigger clickEvent(originalEvent: {detail: 2})
+          expect(treeView).toHaveFocus()
+
   describe "when a directory is single-clicked", ->
     it "is selected", ->
       subdir = root1.find('.directory:first')