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The second call to WithViewData throws NullReferenceException

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
42/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
csharp
Domain
testing-qa

Research direction

Start with ViewResultBaseAssertions.WithViewData, using the stack trace and the HelpEditorControllerTest.GetByPageName_Should_return_view_for_specified_pageName test as entry points. Reproduce the chained assertions and verify that successive WithViewData calls, including the final null value, complete without a NullReferenceException.

Written by the indexing model from the issue text.

Description

This code:

            const string pageName = "pageName";

            _sut.GetByPageName(pageName)
                .Should()
                .BeViewResult()
                .WithViewData("PageName", pageName)
                .WithViewData("Roles", _roles) // this call fails!
                .WithViewData("FieldName", null);

causes:

System.NullReferenceException
  HResult=0x80004003
  Message=Object reference not set to an instance of an object.
  Source=FluentAssertions.Mvc5
  StackTrace:
   at FluentAssertions.Mvc.ViewResultBaseAssertions`1.WithViewData(String key, Object expectedValue, String reason, Object[] reasonArgs)
   at Tests.Controllers.HelpEditor.HelpEditorControllerTest.GetByPageName_Should_return_view_for_specified_pageName() in ...\....Tests\Controllers\HelpEditor\HelpEditorControllerTest.cs:line 48

Dominant language
C#
Stars
36
Forks
8
PR merge metrics
No merged PRs in 30d

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