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Sinon.JS is a standalone library offering test doubles like spies, stubs, and mocks for JavaScript, compatible with any unit testing framework. Sinon.JS - Standalone test fakes, spies, stubs and mocks for JavaScript ... As of Sinon version 1.8, you can use the onCall method to make a stub respond differently on consecutive calls. Note that in Sinon version 1.5 to version 1.7, multiple calls to the yields* and callsArg* family of methods define a sequence of behaviors for consecutive calls. As of 1.8, this functionality has been removed in favor of the onCall API. API documentation - Sinon.JS - v21.1.2 API documentation - Sinon.JS - v21.1.2 This page contains the entire Sinon.JS API documentation along with brief introductions to the concepts Sinon implements. General setup Fakes Spies Stubs Mocks Spy calls Promises Fake timers JSON-P Assertions Matchers Sandboxes Utils Migration guides Migrating from v1.x to v2.0 Migrating from v2.x to v3.0 Migrating ... sinon.spy(object, "property", ["get", "set"]) creates spies that wrap the getters and setters for object.property. The spies will behave exactly like the original getters and setters, but you will have access to data about all calls. Introduction fake is available in Sinon from v5 onwards. It allows creation of a fake Function with the ability to set a default behavior. The available behaviors for the most part match the API of a sinon.stub. In Sinon, a fake is a Function that records arguments, return value, the value of this and exception thrown (if any) for all of its calls. A fake is immutable: once created, the ... To see what mocks look like in Sinon.JS, here is one of the PubSubJS tests again, this time using a method as callback and using mocks to verify its behavior "test should call all subscribers when exceptions": function () { var myAPI = { method: function () {} }; var spy = sinon.spy(); var mock = sinon.mock(myAPI);...
