Reset view registry in AtomEnvironment::reset

spec/text-editor-component-spec.coffee

@@ -22,6 +22,7 @@ describe "TextEditorComponent", ->
       nextAnimationFrame = noAnimationFrame
 
       spyOn(window, 'requestAnimationFrame').andCallFake (fn) ->
+        debugger if global.debug
         nextAnimationFrame = ->
           nextAnimationFrame = noAnimationFrame
           fn()
@@ -54,6 +55,10 @@ describe "TextEditorComponent", ->
       component.measureDimensions()
       nextAnimationFrame()
 
+    # Mutating the DOM in the previous frame causes a document poll; clear it here
+    waits 0
+    runs -> nextAnimationFrame()
+
   afterEach ->
     contentNode.style.width = ''
 

src/atom-environment.coffee

@@ -226,6 +226,9 @@ class AtomEnvironment extends Model
     @deserializers.clear()
     @registerDefaultDeserializers()
 
+    @views.clear()
+    @registerDefaultViewProviders()
+
     @config.clear()
     @setConfigSchema()
 

src/view-registry.coffee

@@ -50,14 +50,14 @@ class ViewRegistry
   minimumPollInterval: 200
 
   constructor: (@atomEnvironment) ->
+    @observer = new MutationObserver(@requestDocumentPoll)
+    @clear()
+
+  clear: ->
     @views = new WeakMap
     @providers = []
-    @documentWriters = []
-    @documentReaders = []
-    @documentPollers = []
-
-    @observer = new MutationObserver(@requestDocumentPoll)
     @debouncedPerformDocumentPoll = _.throttle(@performDocumentPoll, @minimumPollInterval).bind(this)
+    @clearDocumentRequests()
 
   # Essential: Add a provider that will be used to construct views in the
   # workspace's view layer based on model objects in its model layer.