Eliminate warning messages from snippets-spec

Mock loading of TextMate snippets or Atom snippets and only enable
loading for the type of snippet being currently tested. This limits
logging of warning to the single warning we expect for each type, which
allows us to not call through on the mocking of `console.warn` and
explicitly check for the single expected call.

src/packages/snippets/spec/snippets-spec.coffee

@@ -212,9 +212,14 @@ describe "Snippets extension", ->
         expect(editor.getSelectedBufferRange()).toEqual [[1, 6], [1, 36]]
 
   describe "snippet loading", ->
-    it "loads non-hidden snippet files from all atom packages with snippets directories, logging a warning if a file can't be parsed", ->
-      spyOn(console, 'warn').andCallThrough()
+    beforeEach ->
       jasmine.unspy(LoadSnippetsTask.prototype, 'start')
+      spyOn(LoadSnippetsTask.prototype, 'loadAtomSnippets').andCallFake -> @snippetsLoaded({})
+      spyOn(LoadSnippetsTask.prototype, 'loadTextMateSnippets').andCallFake -> @snippetsLoaded({})
+
+    it "loads non-hidden snippet files from all atom packages with snippets directories, logging a warning if a file can't be parsed", ->
+      jasmine.unspy(LoadSnippetsTask.prototype, 'loadAtomSnippets')
+      spyOn(console, 'warn')
       snippets.loaded = false
       snippets.loadAll()
 
@@ -225,11 +230,11 @@ describe "Snippets extension", ->
 
         # warn about junk-file, but don't even try to parse a hidden file
         expect(console.warn).toHaveBeenCalled()
-        expect(console.warn.calls.length).toBeGreaterThan 0
+        expect(console.warn.calls.length).toBe 1
 
     it "loads snippets from all TextMate packages with snippets", ->
-      spyOn(console, 'warn').andCallThrough()
-      jasmine.unspy(LoadSnippetsTask.prototype, 'start')
+      jasmine.unspy(LoadSnippetsTask.prototype, 'loadTextMateSnippets')
+      spyOn(console, 'warn')
       snippets.loaded = false
       snippets.loadAll()
 
@@ -248,7 +253,7 @@ describe "Snippets extension", ->
 
         # warn about junk-file, but don't even try to parse a hidden file
         expect(console.warn).toHaveBeenCalled()
-        expect(console.warn.calls.length).toBeGreaterThan 0
+        expect(console.warn.calls.length).toBe 1
 
   describe "Snippet body parser", ->
     it "breaks a snippet body into lines, with each line containing tab stops at the appropriate position", ->

src/packages/snippets/src/load-snippets-handler.coffee

@@ -10,7 +10,7 @@ module.exports =
           attributes.bodyTree = SnippetBodyParser.parse(attributes.body)
     callTaskMethod('snippetsLoaded', snippets)
 
-  loadTextmateSnippets: (path) ->
+  loadTextMateSnippets: (path) ->
     snippetsDirPath = fs.join(path, 'Snippets')
     snippets = []
 

src/packages/snippets/src/load-snippets-task.coffee

@@ -18,10 +18,15 @@ class LoadSnippetsTask extends Task
 
     @packageBeingLoaded = @packages.shift()
     if @packageBeingLoaded instanceof TextMatePackage
-      method = 'loadTextmateSnippets'
+      @loadTextMateSnippets(@packageBeingLoaded.path)
     else
-      method = 'loadAtomSnippets'
-    @callWorkerMethod(method, @packageBeingLoaded.path)
+      @loadAtomSnippets(@packageBeingLoaded.path)
+
+  loadAtomSnippets: (path) ->
+    @callWorkerMethod('loadAtomSnippets', path)
+
+  loadTextMateSnippets: (path) ->
+    @callWorkerMethod('loadTextMateSnippets', path)
 
   snippetsLoaded: (snippets) ->
     @snippets.add(snippet) for snippet in snippets