Turns out this spec is also flaky

Author: Winston Liu

spec/tree-view-package-spec.coffee

@@ -2925,13 +2925,13 @@ describe "TreeView", ->
           filePath2Copy = path.join(dirPath2, 'test-file2.txt0')
           fs.writeFileSync(filePath2Copy, "doesn't matter 2 copy")
 
-          waitForWorkspaceOpenEvent ->
+          waitsForPromise ->
             atom.workspace.open(filePath2Copy)
 
           runs ->
             openFilePaths = atom.workspace.getTextEditors().map((editor) -> editor.getPath())
             expect(openFilePaths).toEqual([filePath2Copy])
-            fileView2.dispatchEvent(new MouseEvent('click', {bubbles: true, detail: 1}))
+            treeView.selectEntry(fileView2)
             treeView.focus()
 
             spyOn(atom, 'confirm').andCallFake (options, callback) -> callback(0)