Add resolveValue and rejectValue spy strategies

spec/core/baseSpec.js

@@ -27,4 +27,19 @@ describe('base helpers', function() {
       }, 100);
     });
   });
+
+  describe('getPromise', function() {
+    it('returns a custom library if configured', function() {
+      var myLibrary = { resolve: jasmine.createSpy(), reject: jasmine.createSpy() };
+      jasmineUnderTest.getEnv().configure({ promiseLibrary: myLibrary });
+      expect(jasmineUnderTest.getPromise()).toBe(myLibrary);
+    });
+
+    it('returns global library if not configured', function() {
+      var globalLibrary = {};
+      var global = { Promise: globalLibrary };
+      spyOn(jasmineUnderTest, 'getGlobal').and.returnValue(global);
+      expect(jasmineUnderTest.getPromise()).toBe(globalLibrary);
+    });
+  });
 });