Test: System.Reflection.Tests.AssemblyTests/GetEntryAssembly failed with "Xunit.Sdk.NotNullException"

[ghost]

Opened on behalf of @JiayiLi1

The test System.Reflection.Tests.AssemblyTests/GetEntryAssembly has failed.

Assert.NotNull() Failure

    Stack Trace:

       at System.Reflection.Tests.AssemblyTests.GetEntryAssembly() in E:\A\_work\81\s\corefx\src\System.Reflection\tests\AssemblyTests.cs:line 123

Build : Master - 20170420.02 (Full Framework Tests)
Failing configurations:

• Windows.10.Amd64
  • x64-Debug
  • x86-Release
  • x64-Release
  • x86-Debug

Detail: https://mc.dot.net/#/product/netcore/master/source/official~2Fcorefx~2Fmaster~2F/type/test~2Ffunctional~2Fdesktop~2Fcli~2F/build/20170420.02/workItem/System.Reflection.Tests/analysis/xunit/System.Reflection.Tests.AssemblyTests~2FGetEntryAssembly

[danmoseley]

Assembly.GetEntryAssembly() is returning null on desktop for some resaon.

[KristinXie1]

This issue is repro on desktop, detail: https://ci.dot.net/job/dotnet_corefx/job/master/job/outerloop_netfx_windows_nt_debug/29/testReport/System.Reflection.Tests/AssemblyTests/GetEntryAssembly/

[ghost]

This test has a dependency on the test runner exe being used. It can be tweaked to accomodate the desktop - the real lesson, however, is that some tests just shouldn't be running inside test frameworks.

[KristinXie1]

Already have the attribute [SkipOnTargetFramework(TargetFrameworkMonikers.NetFramework, "On desktop, XUnit hosts in an appdomain in such a way that GetEntryAssembly() returns null")] for method GetEntryAssembly()

[stephentoub]

These tests no longer run on netfx.