When project's constructor is given a file as its path, it sets its path to the parent directory of the given file

spec/app/project-spec.coffee

@@ -18,7 +18,7 @@ describe "Project", ->
         buffer = project.open(absolutePath)
         expect(buffer.path).toBe absolutePath
         expect(newBufferHandler).toHaveBeenCalledWith buffer
-        
+
     describe "when given a relative path that hasn't been opened previously", ->
       it "returns a buffer for the given path (relative to the project root) and emits a 'new-buffer' event", ->
         buffer = project.open('a')
@@ -60,3 +60,16 @@ describe "Project", ->
       expect(project.relativize(fs.join(absolutePath, "b"))).toBe "b"
       expect(project.relativize(fs.join(absolutePath, "b/file.coffee"))).toBe "b/file.coffee"
       expect(project.relativize(fs.join(absolutePath, "file.coffee"))).toBe "file.coffee"
+
+  describe ".setPath(path)", ->
+    describe "when path is a file", ->
+      it "sets its path to the files parent directory and updates the root directory", ->
+        project.setPath(require.resolve('fixtures/dir/a'))
+        expect(project.getPath()).toEqual require.resolve('fixtures/dir')
+        expect(project.getRootDirectory().path).toEqual require.resolve('fixtures/dir')
+
+    describe "when path is a directory", ->
+      it "sets its path to the directory and updates the root directory", ->
+        project.setPath(require.resolve('fixtures/dir/a-dir'))
+        expect(project.getPath()).toEqual require.resolve('fixtures/dir/a-dir')
+        expect(project.getRootDirectory().path).toEqual require.resolve('fixtures/dir/a-dir')

src/app/directory.coffee

@@ -7,6 +7,8 @@ module.exports =
 class Directory
   @idCounter = 0
 
+  path: null
+
   constructor: (@path) ->
     @id = ++Directory.idCounter
 

src/app/project.coffee

@@ -6,10 +6,20 @@ Directory = require 'directory'
 
 module.exports =
 class Project
+  path: null
+  rootDirectory: null
   buffers: null
 
-  constructor: (@path) ->
+  constructor: (path) ->
+    @setPath(path)
     @buffers = []
+
+  getPath: ->
+    @path
+
+  setPath: (path) ->
+    @path = if fs.isDirectory(path) then path else fs.directory(path)
+    @rootDirectory.off() if @rootDirectory
     @rootDirectory = new Directory(@path)
 
   getRootDirectory: ->

src/app/root-view.coffee

@@ -35,14 +35,13 @@ class RootView extends View
         @setTitle(@project?.path)
 
     @on 'active-editor-path-change', (e, path) =>
-      @project.path ?= fs.directory(path) if path
+      @project.setPath(path) unless @project.getPath()
       @setTitle(path)
 
-
     @commandPanel = new CommandPanel({rootView: this})
 
     if pathToOpen?
-      @project = new Project(fs.directory(pathToOpen))
+      @project = new Project(pathToOpen)
       @open(pathToOpen) if fs.isFile(pathToOpen)
     else
       @project = new Project(projectPath)