c# - My Mocked DbContext writes to db in Unit Test using Moq -

c# - My Mocked DbContext writes to db in Unit Test using Moq -

i new mocking , using moq. first time trying mock add together functionality. have mocks setup , works read functions, when seek unit test add together method, saves changes db.

how mock add together method?

i think have mock unitofwork class has savechanges() method. want know how have setup mock intercept phone call savechanges() , not save db.

here mocks have far

[setup] public void setup() { addcount = 0; ienumerable<platform> platformlist = new list<platform>(){ new platform() { id = 1, name = "unknown"}, new platform() { id =2, name = "amazon"}, new platform() { id = 3, name = "prime pantry"} }; var platformdata = platformlist.asqueryable(); var mockplatformset = new mock<dbset<platform>>(); mockplatformset.as<iqueryable<platform>>().setup(m => m.provider).returns(platformdata.provider); mockplatformset.as<iqueryable<platform>>().setup(m => m.expression).returns(platformdata.expression); mockplatformset.as<iqueryable<platform>>().setup(m => m.elementtype).returns(platformdata.elementtype); mockplatformset.as<iqueryable<platform>>().setup(m => m.getenumerator()).returns(platformdata.getenumerator()); mockplatformset.setup(m => m.add(it.isany<platform>())).callback(() => addcount++); var mockcontext = new mock<applicationdbcontext>(){ callbase = true }; mockcontext.setup(m => m.platforms).returns(mockplatformset.object); mockcontext.setup(m => m.platforms.add(it.isany<platform>())); mockcontext.setup(m => m.platforms.add(it.isany<platform>())).callback(() => addcount++); unitofwork = new unitofwork(mockcontext.object); platformrepo = new platformrepository(mockcontext.object); controller = new platformcontroller(platformrepo, unitofwork); }

adding unitofwork code

public class unitofwork : iunitofwork { private readonly dbcontext _context; private bool _isdisposed = false; public unitofwork(dbcontext context) { _context = context; } public void savechanges() { _context.savechanges(); } protected virtual void dispose(bool disposing) { if (!_isdisposed) { if (disposing) { _context.dispose(); } } _isdisposed = true; } public void dispose() { dispose(true); gc.suppressfinalize(this); } }

updated question

i trying unit test create method of platformcontroller. in method, phone call add function on repostiory savechanges function of unitofwork. want verify platform object gets added dbset, 'intercept' phone call savechanges() not write db.

how can this?

when set callbase value of mockcontext iunitofwork false, seems have solved problem of unit test writing database.

this line of code: mockcontext.as<iunitofwork>().callbase = false;

here code of setup function

[setup] public void setup() { addcount = 0; ienumerable<platform> platformlist = new list<platform>(){ new platform() { id = 1, name = "unknown"}, new platform() { id =2, name = "amazon"}, new platform() { id = 3, name = "prime pantry"} }; var platformdata = platformlist.asqueryable(); var mockplatformset = new mock<dbset<platform>>(); mockplatformset.as<iqueryable<platform>>().setup(m => m.provider).returns(platformdata.provider); mockplatformset.as<iqueryable<platform>>().setup(m => m.expression).returns(platformdata.expression); mockplatformset.as<iqueryable<platform>>().setup(m => m.elementtype).returns(platformdata.elementtype); mockplatformset.as<iqueryable<platform>>().setup(m => m.getenumerator()).returns(platformdata.getenumerator()); mockplatformset.setup(m => m.add(it.isany<platform>())).callback(() => addcount++); var mockcontext = new mock<applicationdbcontext>(){ callbase = true }; mockcontext.setup(m => m.platforms).returns(mockplatformset.object); mockcontext.setup(m => m.platforms.add(it.isany<platform>())); mockcontext.setup(m => m.platforms.add(it.isany<platform>())).callback(() => addcount++); mockcontext.setup(m => m.set<platform>()).returns(mockplatformset.object); mockcontext.as<iunitofwork>().callbase = false; unitofwork = new unitofwork(mockcontext.object); platformrepo = new platformrepository(mockcontext.object); controller = new platformcontroller(platformrepo, unitofwork); }

c# entity-framework unit-testing moq