Splitting out specs for pending changes service

spec/javascripts/unit/admin/index_utils/services/pending_changes_spec.js.coffee

@@ -0,0 +1,119 @@
+describe "Pending Changes", ->
+  dataSubmitter = pendingChanges = null
+
+  beforeEach ->
+    dataSubmitter = jasmine.createSpy('dataSubmitter').andReturn {
+      then: (thenFn) ->
+        thenFn({propertyName: "new_value"})
+    }
+    module 'admin.indexUtils', ($provide) ->
+      $provide.value 'dataSubmitter', dataSubmitter
+      return
+
+    inject (_pendingChanges_) ->
+      pendingChanges = _pendingChanges_
+
+
+  describe "adding a new change", ->
+    it "adds a new object with key of id if it does not already exist", ->
+      expect(pendingChanges.pendingChanges).toEqual {}
+      expect(pendingChanges.pendingChanges["1"]).not.toBeDefined()
+      pendingChanges.add 1, "propertyName", { a: 1 }
+      expect(pendingChanges.pendingChanges["1"]).toBeDefined()
+
+    it "adds a new object with key of the altered attribute name if it does not already exist", ->
+      pendingChanges.add 1, "propertyName", { a: 1 }
+      expect(pendingChanges.pendingChanges["1"]).toBeDefined()
+      expect(pendingChanges.pendingChanges["1"]["propertyName"]).toEqual { a: 1 }
+
+    it "replaces the existing object when adding a change to an attribute which already exists", ->
+      pendingChanges.add 1, "propertyName", { a: 1 }
+      expect(pendingChanges.pendingChanges["1"]).toBeDefined()
+      expect(pendingChanges.pendingChanges["1"]["propertyName"]).toEqual { a: 1 }
+      pendingChanges.add 1, "propertyName", { b: 2 }
+      expect(pendingChanges.pendingChanges["1"]["propertyName"]).toEqual { b: 2 }
+
+   it "adds an attribute to key to a line item object when one already exists", ->
+      pendingChanges.add 1, "propertyName1", { a: 1 }
+      pendingChanges.add 1, "propertyName2", { b: 2 }
+      expect(pendingChanges.pendingChanges["1"]).toEqual { propertyName1: { a: 1}, propertyName2: { b: 2 } }
+
+  describe "removing all existing changes", ->
+    it "resets pendingChanges object", ->
+      pendingChanges.pendingChanges = { 1: { "propertyName1": { a: 1 }, "propertyName2": { b: 2 } } }
+      expect(pendingChanges.pendingChanges["1"]["propertyName1"]).toBeDefined()
+      expect(pendingChanges.pendingChanges["1"]["propertyName2"]).toBeDefined()
+      pendingChanges.removeAll()
+      expect(pendingChanges.pendingChanges["1"]).not.toBeDefined()
+      expect(pendingChanges.pendingChanges).toEqual {}
+
+  describe "removing an existing change", ->
+    it "deletes a change if it exists", ->
+      pendingChanges.pendingChanges = { 1: { "propertyName1": { a: 1 }, "propertyName2": { b: 2 } } }
+      expect(pendingChanges.pendingChanges["1"]["propertyName1"]).toBeDefined()
+      pendingChanges.remove 1, "propertyName1"
+      expect(pendingChanges.pendingChanges["1"]).toBeDefined()
+      expect(pendingChanges.pendingChanges["1"]["propertyName1"]).not.toBeDefined()
+
+    it "deletes a line item object if it is empty", ->
+      pendingChanges.pendingChanges = { 1: { "propertyName1": { a: 1 } } }
+      expect(pendingChanges.pendingChanges["1"]["propertyName1"]).toBeDefined()
+      pendingChanges.remove 1, "propertyName1"
+      expect(pendingChanges.pendingChanges["1"]).not.toBeDefined()
+
+    it "does nothing if key with specified attribute does not exist", ->
+      pendingChanges.pendingChanges = { 1: { "propertyName1": { a: 1 } } }
+      expect(pendingChanges.pendingChanges["1"]["propertyName1"]).toBeDefined()
+      pendingChanges.remove 1, "propertyName2"
+      expect(pendingChanges.pendingChanges["1"]["propertyName1"]).toEqual { a: 1 }
+
+    it "does nothing if key with specified id does not exist", ->
+      pendingChanges.pendingChanges = { 1: { "propertyName1": { a: 1 } } }
+      expect(pendingChanges.pendingChanges["1"]["propertyName1"]).toBeDefined()
+      pendingChanges.remove 2, "propertyName1"
+      expect(pendingChanges.pendingChanges["1"]).toEqual { "propertyName1": { a: 1 } }
+
+  describe "submitting an individual change to the server", ->
+    change = null
+    beforeEach ->
+      object = {id: 1}
+      scope = { reset: jasmine.createSpy('reset') };
+      attr = "propertyName"
+      change = { object: object, scope: scope, attr: attr }
+
+    it "sends the correct object to dataSubmitter", ->
+      pendingChanges.submit change
+      expect(dataSubmitter.calls.length).toEqual 1
+      expect(dataSubmitter).toHaveBeenCalledWith change
+
+    it "calls remove with id and attribute name", ->
+      spyOn(pendingChanges, "remove").andCallFake(->)
+      pendingChanges.submit change
+      expect(pendingChanges.remove.calls.length).toEqual 1
+      expect(pendingChanges.remove).toHaveBeenCalledWith 1, "propertyName"
+
+    it "calls reset on the relevant scope", ->
+      pendingChanges.submit change
+      expect(change.scope.reset).toHaveBeenCalledWith "new_value"
+
+  describe "cycling through all changes to submit to server", ->
+    it "sends the correct object to dataSubmitter", ->
+      spyOn(pendingChanges, "submit").andCallFake(->)
+      pendingChanges.pendingChanges =
+        1: { "prop1": { attr: "prop1", value: 1 }, "prop2": { attr: "prop2", value: 2 } }
+        2: { "prop1": { attr: "prop1", value: 2 }, "prop2": { attr: "prop2", value: 4 } }
+        7: { "prop2": { attr: "prop2", value: 5 } }
+      pendingChanges.submitAll()
+      expect(pendingChanges.submit.calls.length).toEqual 5
+      expect(pendingChanges.submit).toHaveBeenCalledWith { attr: "prop1", value: 1 }
+      expect(pendingChanges.submit).toHaveBeenCalledWith { attr: "prop2", value: 2 }
+      expect(pendingChanges.submit).toHaveBeenCalledWith { attr: "prop1", value: 2 }
+      expect(pendingChanges.submit).toHaveBeenCalledWith { attr: "prop2", value: 4 }
+      expect(pendingChanges.submit).toHaveBeenCalledWith { attr: "prop2", value: 5 }
+
+    it "returns an array of promises representing all sumbit requests", ->
+      spyOn(pendingChanges, "submit").andCallFake (change) -> change.value
+      pendingChanges.pendingChanges =
+        1: { "prop1": { attr: "prop1", value: 1 } }
+        2: { "prop1": { attr: "prop1", value: 2 }, "prop2": { attr: "prop1", value: 4 } }
+      expect(pendingChanges.submitAll()).toEqual [ 1, 2, 4 ]