Finished backbone model tests for textbooks

cms/static/coffee/spec/models/textbook_spec.coffee

@@ -67,3 +67,69 @@ describe "CMS.Models.Textbook input/output", ->
         model = new CMS.Models.Textbook(serverModelSpec, {parse: true})
         expect(deepAttributes(model)).toEqual(clientModelSpec)
         expect(model.toJSON()).toEqual(serverModelSpec)
+
+describe "CMS.Collections.TextbookSet", ->
+    beforeEach ->
+        window.TEXTBOOK_URL = "/textbooks"
+        @collection = new CMS.Collections.TextbookSet()
+
+    afterEach ->
+        delete window.TEXTBOOK_URL
+
+    it "should have a url set", ->
+        expect(_.result(@collection, "url"), window.TEXTBOOK_URL)
+
+    it "can call save", ->
+        spyOn(@collection, "sync")
+        @collection.save()
+        expect(@collection.sync).toHaveBeenCalledWith("update", @collection, undefined)
+
+    it "should respond to editOne events", ->
+        model = new CMS.Models.Textbook()
+        @collection.trigger('editOne', model)
+        expect(@collection.editing).toEqual(model)
+
+
+describe "CMS.Models.Chapter", ->
+    beforeEach ->
+        @model = new CMS.Models.Chapter()
+
+    it "should have a name by default", ->
+        expect(@model.get("name")).toEqual("")
+
+    it "should have an asset_path by default", ->
+        expect(@model.get("asset_path")).toEqual("")
+
+    it "should have an order by default", ->
+        expect(@model.get("order")).toEqual(1)
+
+    it "should be empty by default", ->
+        expect(@model.isEmpty()).toBeTruthy()
+
+
+describe "CMS.Collections.ChapterSet", ->
+    beforeEach ->
+        @collection = new CMS.Collections.ChapterSet()
+
+    it "is empty by default", ->
+        expect(@collection.isEmpty()).toBeTruthy()
+
+    it "is empty if all chapters are empty", ->
+        @collection.add([{}, {}, {}])
+        expect(@collection.isEmpty()).toBeTruthy()
+
+    it "is not empty if a chapter is not empty", ->
+        @collection.add([{}, {name: "full"}, {}])
+        expect(@collection.isEmpty()).toBeFalsy()
+
+    it "should have a nextOrder function", ->
+        expect(@collection.nextOrder()).toEqual(1)
+        @collection.add([{}])
+        expect(@collection.nextOrder()).toEqual(2)
+        @collection.add([{}])
+        expect(@collection.nextOrder()).toEqual(3)
+        # verify that it doesn't just return an incrementing value each time
+        expect(@collection.nextOrder()).toEqual(3)
+        # try going back one
+        @collection.remove(@collection.last())
+        expect(@collection.nextOrder()).toEqual(2)