{"metadata":{"image":[],"title":"","description":""},"api":{"url":"","auth":"never","params":[],"results":{"codes":[]},"try":true,"basic_auth":false},"next":{"description":"","pages":[]},"title":"Verifying with 'Then'","type":"basic","slug":"verifying-with-then","excerpt":"","body":"In the [Given, When, Then](doc:given-when-then) setup, the Then step is for you that the action you performed against the [System Under Test (SUT)](doc:the-system-under-test-sut) had the desired outcome(s). \n\nConsider our simple spec again: \n[block:callout]\n{\n \"type\": \"info\",\n \"body\": \"Given a car is started, when the car is stopped, then the engine is stopped.\"\n}\n[/block]\nUnlike Given and When, there is no Then method to override in SpecsFor. Instead, you create test cases for each outcome you wish to verify, like so:\n[block:code]\n{\n \"codes\": [\n {\n \"code\": \"[Test]\\npublic void then_the_engine_is_stopped()\\n{\\n //Then: the engine is stopped.\\n SUT.Engine.IsStopped.ShouldBeTrue();\\n}\",\n \"language\": \"csharp\"\n }\n ]\n}\n[/block]\n\n[block:callout]\n{\n \"type\": \"warning\",\n \"title\": \"BE CAREFUL!\",\n \"body\": \"Be sure you decorate each of your test cases with the NUnit Test attribute. If you don't, NUnit won't see your test cases, and they won't be executed.\"\n}\n[/block]\n\nThe above spec only had a single outcome to verify, but it's not uncommon for specs to have multiple things to check:\n[block:callout]\n{\n \"type\": \"info\",\n \"body\": \"Given a car is started, when the car is stopped..\\n then the car is stopped.\\n then the engine is stopped.\"\n}\n[/block]\nThe full SpecsFor implementation of this spec would look like this:\n[block:code]\n{\n \"codes\": [\n {\n \"code\": \"public class given_a_car_is_started_when_a_car_is_stopped : SpecsFor<Car>\\n{\\n protected override void Given()\\n {\\n //Given: establish state, in this case, that the car is started.\\n SUT.Start();\\n }\\n\\n protected override void When()\\n {\\n //When: perform an action, in this case, stopping the car.\\n SUT.Stop();\\n }\\n\\n //Note that there can be (and usually are) multiple 'Then' test cases.\\n [Test]\\n public void then_the_car_is_stopped()\\n {\\n //Then: the car is stopped.\\n SUT.IsStopped.ShouldBeTrue();\\n }\\n\\n [Test]\\n public void then_the_engine_is_stopped()\\n {\\n //Then: the engine is stopped.\\n SUT.Engine.IsStopped.ShouldBeTrue();\\n }\\n}\",\n \"language\": \"csharp\"\n }\n ]\n}\n[/block]","updates":[],"order":7,"isReference":false,"hidden":false,"sync_unique":"","link_url":"","link_external":false,"_id":"54485396c1b42e08005b82b2","__v":1,"createdAt":"2014-10-23T01:02:14.922Z","githubsync":"","is_link":false,"user":"54471f91beb6320800da6f75","category":{"sync":{"isSync":false,"url":""},"pages":["544853a8c1b42e08005b82b6","5447ecac8d7af31a00dd4119","5447ed6d0319802200fc0705","5447ef7a8d7af31a00dd4125","54485217c1b42e08005b82a6","5448536e4544c30800241f48","54485396c1b42e08005b82b2","547c7c5f78fd57080023c99c"],"title":"Basics","slug":"basics","order":2,"from_sync":false,"reference":false,"_id":"544854e74544c30800241f51","project":"54471fc9e12a270800028adc","version":"54471fc9e12a270800028adf","createdAt":"2014-10-23T01:07:51.270Z","__v":1},"project":"54471fc9e12a270800028adc","version":{"version":"1.0","version_clean":"1.0.0","codename":"","is_stable":true,"is_beta":false,"is_hidden":false,"is_deprecated":false,"categories":["54471fc9e12a270800028ae0","5447b9e7b96a63140077d747","5447be130319802200fc0620","5447ed118d7af31a00dd411c","5447ed230319802200fc0702","5448524c4544c30800241f41","544854504544c30800241f4d","544854af4544c30800241f50","544854e74544c30800241f51","54485557c1b42e08005b82bf"],"_id":"54471fc9e12a270800028adf","__v":10,"project":"54471fc9e12a270800028adc","releaseDate":"2014-10-22T03:08:57.750Z","createdAt":"2014-10-22T03:08:57.750Z"}}