Sinon v2.0 is the second major release, we have made several breaking changes in this release as a result of modernising the internals of Sinon. This guide is intended to walk you through the changes.

sinon.log and sinon.logError Removed

sinon.log and sinon.logError were used in Sinon v1.x to globally configure FakeServer, FakeXMLHttpRequest and FakeXDomainRequest; these three functions now allow the logger to be configured on a per-use basis. In v1.x you may have written:

sinon.log = function (msg) { // your logging impl };

You would now individually import and configure the utility upon creation:

var sinon = require("sinon");

var myFakeServer = sinon.fakeServer.create({
 logger: function (msg) { // your logging impl }

sinon.test, sinon.testCase and sinon.config Removed

sinon.test and sinon.testCase have been extracted from the Sinon API and moved into their own node module, sinon-test. Please refer to the sinon-test README for migration examples.

stub.callsFake replaces stub(obj, ‘meth’, fn)

sinon.stub(obj, 'meth', fn) return a spy, not a full stub. Behavior could not be redefined. stub.callsFake now returns a full stub. Here’s a codemod script to help you migrate. See discussion.

// Old
sinon.stub(obj, 'meth', fn);
// New
sinon.stub(obj, 'meth').callsFake(fn);

Deprecation of internal helpers

The following utility functions are being marked as deprecated and are planned for removal in Sinon v3.0; please check your codebase for usage to ease future migrations:

  • sinon.calledInOrder
  • sinon.create
  • sinon.deepEqual
  • sinon.format
  • sinon.functionName
  • sinon.functionToString
  • sinon.getConfig
  • sinon.getPropertyDescriptor
  • sinon.objectKeys
  • sinon.orderByFirstCall
  • sinon.restore
  • sinon.timesInWorlds
  • sinon.valueToString
  • sinon.walk
  • sinon.wrapMethod
  • sinon.Event
  • sinon.CustomEvent
  • sinon.EventTarget
  • sinon.ProgressEvent
  • sinon.typeOf
  • sinon.extend

sandbox.useFakeXMLHttpRequest no longer returns a “server”

In Sinon 1.x, the sandbox’ useFakeXMLHttpRequest was the same as its useFakeServer. In 2.x, it maps directly to sinon.useFakeXMLHttpRequest (but with sandboxing). If you use sandbox.useFakeXMLHttpRequest, just replace it with sandbox.useFakeServer, and your tests should behave as they always did.

sinon.behavior is gone

The sinon.behavior object is no longer exposed for random modification. However, there is a new mechanism in place aided to add new behavior to stubs, sinon.addBehavior(name, fn), see the stub docs.