Fix remaining specs

Author: Wliu

lib/directory-view.js

@@ -115,12 +115,14 @@ class DirectoryView {
   createViewForEntry(entry) {
     const view = entry instanceof Directory ? new DirectoryView(entry) : new FileView(entry)
 
-    this.subscriptions.add(this.directory.onDidRemoveEntries(removedEntries => {
+    const subscription = this.directory.onDidRemoveEntries(removedEntries => {
       if (removedEntries.has(entry)) {
         view.element.remove()
         subscription.dispose()
       }
-    }))
+    })
+
+    this.subscriptions.add(subscription)
 
     return view
   }

lib/directory.js

@@ -247,8 +247,12 @@ class Directory {
     try {
       this.watchSubscription = PathWatcher.watch(this.path, eventType => {
         switch (eventType) {
-          case 'change': this.reload()
-          case 'delete': this.destroy()
+          case 'change':
+            this.reload()
+            break
+          case 'delete':
+            this.destroy()
+            break
         }
       })
     } catch (error) {}