asp.net - How to unit test the Initialize() method of System.Web.Mvc.Controller? -


i unit test initialize method of controller object. initialize () method extracts player's id cookies collection of request object , retrieves current player object database. player object stored in controller object's currentplayer property. have following code unit test. test written index () method of controller:

[test] public void index_returnsjsonresult () {    var _gamerepositorymock = gamerepositorycreator.create (5);     var _formsauthenticationmock = new mock<iformsauthentication> ();     var _chooseopponentcontroller = new chooseopponentcontroller (_gamerepositorymock.object, _formsauthenticationmock.object);       var cookie = new httpcookie (cookiename);     cookie.value = player.playerid + "_encrypted";      var cookies = new httpcookiecollection ();     cookies.add (cookie);      var httprequestmock = new mock<httprequestbase> ();     httprequestmock.setup (x => x.cookies).returns (cookies);     httprequestmock.setup (x => x.isauthenticated).returns (true);      var httpcontextmock = new mock<httpcontextbase> ();     httpcontextmock.setup (x => x.request).returns (httprequestmock.object);      var rd = new routedata ();     rd.values.add ("action", "index");     rd.values.add ("controller", "chooseopponent");      var requestcontext = new requestcontext (httpcontextmock.object, rd);       _formsauthenticationmock.setup (x => x.decrypt (cookie.value)).returns (player.playerid + "");         (_chooseopponentcontroller icontroller).execute (requestcontext);      assert.isnotnull (_chooseopponentcontroller.currentplayer);      ... // test other things index () method }

the index () method declared as:

 [authorize, saveplayerstatus(order=2), commitchanges(order=1)]  public actionresult index ()  { ... }

the initialize () method executed after exception following message: "object reference not set instance of object.", , stack trace looks this:

at system.web.compilation.buildmanager.getcachekeyfromvirtualpath(virtualpath virtualpath, boolean& keyfromvpp) @ system.web.compilation.buildmanager.getvpathbuildresultfromcacheinternal(virtualpath virtualpath, boolean ensureisuptodate) @ system.web.compilation.buildmanager.getvpathbuildresultinternal(virtualpath virtualpath, boolean nobuild, boolean allowcrossapp, boolean allowbuildinprecompile, boolean throwifnotfound, boolean ensureisuptodate) @ system.web.compilation.buildmanager.getvpathbuildresultwithnoassert(httpcontext context, virtualpath virtualpath, boolean nobuild, boolean allowcrossapp, boolean allowbuildinprecompile, boolean throwifnotfound, boolean ensureisuptodate) @ system.web.compilation.buildmanager.getvirtualpathobjectfactory(virtualpath virtualpath, httpcontext context, boolean allowcrossapp, boolean throwifnotfound) @ system.web.mvc.buildmanagerwrapper.system.web.mvc.ibuildmanager.fileexists(string virtualpath) @ system.web.mvc.buildmanagerviewengine.fileexists(controllercontext controllercontext, string virtualpath) @ system.web.mvc.virtualpathproviderviewengine.getpathfromgeneralname(controllercontext controllercontext, list`1 locations, string name, string controllername, string areaname, string cachekey, string[]& searchedlocations) @ system.web.mvc.virtualpathproviderviewengine.getpath(controllercontext controllercontext, string[] locations, string[] arealocations, string locationspropertyname, string name, string controllername, string cachekeyprefix, boolean usecache, string[]& searchedlocations) @ system.web.mvc.virtualpathproviderviewengine.findview(controllercontext controllercontext, string viewname, string mastername, boolean usecache) @ system.web.mvc.viewenginecollection.<>c__displayclassc.<findview>b__b(iviewengine e) @ system.web.mvc.viewenginecollection.find(func`2 lookup, boolean tracksearchedpaths) @ system.web.mvc.viewenginecollection.findview(controllercontext controllercontext, string viewname, string mastername) @ system.web.mvc.viewresult.findview(controllercontext context) @ system.web.mvc.viewresultbase.executeresult(controllercontext context) @ system.web.mvc.controlleractioninvoker.invokeactionresult(controllercontext controllercontext, actionresult actionresult) @ system.web.mvc.controlleractioninvoker.<>c__displayclass1c.<invokeactionresultwithfilters>b__19() @ system.web.mvc.controlleractioninvoker.invokeactionresultfilter(iresultfilter filter, resultexecutingcontext precontext, func`1 continuation) @ system.web.mvc.controlleractioninvoker.<>c__displayclass1c.<>c__displayclass1e.<invokeactionresultwithfilters>b__1b() @ system.web.mvc.controlleractioninvoker.invokeactionresultwithfilters(controllercontext controllercontext, ilist`1 filters, actionresult actionresult) @ system.web.mvc.controlleractioninvoker.invokeaction(controllercontext controllercontext, string actionname)

any appreciated.

by calling execute calling entire mvc pipeline. includes view lookup logic tries go disk , find view files. part that's failing asp.net compilation system not initialized properly.

for unit test, executing much. write 2 tests: 1 verifies index method right thing, , 1 verifies initialize method right thing. else (the fact initialize gets called before action method, etc) mvc plumbing should not need worry about.


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