[Core] Specs for model service components

Fill in specs for model service components, part of
bundle platform/core; WTD-573.

platform/core/test/models/PersistedModelProviderSpec.js

@@ -9,6 +9,57 @@ define(
         "use strict";
 
         describe("The persisted model provider", function () {
+            var mockQ,
+                mockPersistenceService,
+                SPACE = "some space",
+                provider;
+
+            function mockPromise(value) {
+                return {
+                    then: function (callback) {
+                        return mockPromise(callback(value));
+                    },
+                    testValue: value
+                };
+            }
+
+            function mockAll(mockPromises) {
+                return mockPromise(mockPromises.map(function (p) {
+                    return p.testValue;
+                }));
+            }
+
+            beforeEach(function () {
+                mockQ = { when: mockPromise, all: mockAll };
+                mockPersistenceService = {
+                    readObject: function (space, id) {
+                        return mockPromise({
+                            space: space,
+                            id: id
+                        });
+                    }
+                };
+
+                provider = new PersistedModelProvider(
+                    mockPersistenceService,
+                    mockQ,
+                    SPACE
+                );
+            });
+
+            it("reads object models from persistence", function () {
+                var models;
+
+                provider.getModels(["a", "x", "zz"]).then(function (m) {
+                    models = m;
+                });
+
+                expect(models).toEqual({
+                    a: { space: SPACE, id: "a" },
+                    x: { space: SPACE, id: "x" },
+                    zz: { space: SPACE, id: "zz" }
+                });
+            });
 
         });
     }