Binding Redirects necessary to run Unit Tests on .NET Framework are not preserved when running in `testhost`

[analogrelay]

Description

Binding Redirects necessary to run Unit Tests on .NET Framework are not preserved when running in testhost. When MSBuild compiles the test Console Exe project, it generates an app.config with a binding redirect for System.Net.Http. However, that binding redirect is not present when running inside testhost and thus the tests fail with a MissingMethodException because the binding was never redirected.

Steps to reproduce

1. Clone https://github.com/anurse/testhost_bindingredirect_issue
2. Open "SystemNetHttpIssue.sln" in VS 2017
3. Build the Solution
4. Ensure App is set as the start-up project and run it
5. Confirm that no error occurs
6. Run All Tests
7. See error, described below
8. Switch to command line and run dotnet test in the folder containing the Test project
9. See error, described below

Expected behavior

Steps 5, 7 and 9 all complete successfully without errors

Actual behavior

During step 7 (running tests from VS), there is an exception while discovering tests (this particular issue may be xunit related and may not be related to the specific problem):

[xUnit.net 00:00:00.5384903] Exception discovering tests from Test: System.BadImageFormatException: Could not load file or assembly 'Test, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. An attempt was made to load a program with an incorrect format.
File name: 'Test, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null'
   at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, RuntimeAssembly reqAssembly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks)
   at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
   at Xunit.Sdk.ReflectionAssemblyInfo..ctor(String assemblyFileName)$$RethrowMarker$$   at ExceptionExtensions.RethrowWithNoStackTraceLoss(Exception ex) in C:\BuildAgent\work\82a56c38c02ce641\src\common\ExceptionExtensions.cs:line 25
   at Xunit.AppDomainManager_AppDomain.CreateObject[TObject](AssemblyName assemblyName, String typeName, Object[] args) in C:\BuildAgent\work\82a56c38c02ce641\src\xunit.runner.utility\AppDomain\AppDomainManager_AppDomain.cs:line 82
   at Xunit.Xunit2Discoverer..ctor(AppDomainSupport appDomainSupport, ISourceInformationProvider sourceInformationProvider, IAssemblyInfo assemblyInfo, String assemblyFileName, String xunitExecutionAssemblyPath, String configFileName, Boolean shadowCopy, String shadowCopyFolder, IMessageSink diagnosticMessageSink, Boolean verifyAssembliesOnDisk) in C:\BuildAgent\work\82a56c38c02ce641\src\xunit.runner.utility\Frameworks\v2\Xunit2Discoverer.cs:line 98
   at Xunit.XunitFrontController.CreateInnerController() in C:\BuildAgent\work\82a56c38c02ce641\src\xunit.runner.utility\Frameworks\XunitFrontController.cs:line 111
   at Xunit.XunitFrontController.get_InnerController() in C:\BuildAgent\work\82a56c38c02ce641\src\xunit.runner.utility\Frameworks\XunitFrontController.cs:line 81
   at Xunit.Runner.VisualStudio.TestAdapter.VsTestRunner.DiscoverTests[TVisitor](IRunSettings runSettings, IEnumerable`1 sources, LoggerHelper logger, Func`4 visitorFactory, Action`4 visitComplete) in C:\BuildAgent\work\b97dadc0a591f9a\xunit.runner.visualstudio.desktop\VsTestRunner.cs:line 200

During step 9, the test will fail:

Build started, please wait...
Build completed.

Test run for C:\Users\anurse\Code\anurse\testhost_bindingredirect_issue\Test\bin\Debug\net461\Test.dll(.NETFramework,Version=v4.6.1)
Microsoft (R) Test Execution Command Line Tool Version 15.0.0.0
Copyright (c) Microsoft Corporation.  All rights reserved.

Starting test execution, please wait...
Failed   UnitTest.Main
Error Message:

 System.MissingMethodException : Method not found: 'System.Net.Http.HttpClient Microsoft.AspNetCore.TestHost.TestServer.CreateClient()'.
Stack Trace:
   at UnitTest.Main()Test Run Failed.

Total tests: 1. Passed: 0. Failed: 1. Skipped: 0.
Test execution time: 3.5745 Seconds

Environment

OS: Windows 10 x64
VS: 2017 build 26126 d15prerel

dotnet --info:

.NET Command Line Tools (1.0.0-rc3-004530)

Product Information:
 Version:            1.0.0-rc3-004530
 Commit SHA-1 hash:  0de3338607

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.15019
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Users\anurse\AppData\Local\Microsoft\dotnet\sdk\1.0.0-rc3-004530

App.config file

Below is the app.config file generated when compiling the App project (which works):

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Net.Http" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.1.1.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Security.Cryptography.X509Certificates" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.1.1.0" newVersion="4.1.1.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Collections.Immutable" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-1.2.1.0" newVersion="1.2.1.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.IO.Compression" publicKeyToken="b77a5c561934e089" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-4.1.2.0" newVersion="4.1.2.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

Test Host Verbose log (dotnet test --diag)

TpTrace Information: 0 : 290876, 1, 2017/02/01, 12:30:31.202, 1118375145124, testhost.exe, DefaultEngineInvoker: Using Application Configuration: '<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0" />
  </startup>
  <runtime>
    <legacyUnhandledExceptionPolicy enabled="1" />
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <probing privatePath="Extensions" />
      <!-- Test adapters compiled against version 11-14, need to be redirected to version 15. -->
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.VisualStudio.TestPlatform.ObjectModel" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="11.0.0.0-14.0.0.0" newVersion="15.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.VisualStudio.TestWindow.Interfaces" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="11.0.0.0-14.0.0.0" newVersion="15.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.VisualStudio.QualityTools.UnitTestFramework" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="10.1.0.0" newVersion="10.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.VisualStudio.QualityTools.Resource" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="10.0.0.0-14.0.0.0" newVersion="15.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.VisualStudio.QualityTools.ControllerObject" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="10.0.0.0-14.0.0.0" newVersion="15.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.VisualStudio.QualityTools.ExecutionCommon" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="10.0.0.0-14.0.0.0" newVersion="15.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.VisualStudio.QualityTools.Common" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="10.0.0.0-14.0.0.0" newVersion="15.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Collections.Immutable" publicKeyToken="b03f5f7f11d50a3a" culture="neutral" />
        <bindingRedirect oldVersion="1.1.37.0" newVersion="1.2.0.0" />
      </dependentAssembly>
    </assemblyBinding>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" />
        <bindingRedirect oldVersion="0.0.0.0-9.0.0.0" newVersion="9.0.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <system.diagnostics>
    <switches>
      <add name="TpTraceLevel" value="0" />
    </switches>
  </system.diagnostics>
  <appSettings>
    <!--<add key="ExecutionThreadApartmentState" value ="MTA"/>-->
    <!--<add key="TraceLogMaxFileSizeInKb" value ="10240"/>-->
    <!-- MsTest Adapter Specific AppSettings -->
    <add key="TestProjectRetargetTo35Allowed" value="true" />
  </appSettings>
</configuration>'
TpTrace Information: 0 : 290876, 1, 2017/02/01, 12:30:31.232, 1118375224030, testhost.exe, DefaultEngineInvoker: Monitoring parent process with id: '291712'
TpTrace Information: 0 : 290876, 1, 2017/02/01, 12:30:31.280, 1118375367372, testhost.exe, DefaultEngineInvoker: Initialize communication on port number: '53499'
TpTrace Information: 0 : 290876, 1, 2017/02/01, 12:30:31.282, 1118375374776, testhost.exe, Trying to connect to server on port : 53499
TpTrace Information: 0 : 290876, 6, 2017/02/01, 12:30:31.290, 1118375397689, testhost.exe, Connected to the server successfully 
TpTrace Information: 0 : 290876, 1, 2017/02/01, 12:30:31.499, 1118376022123, testhost.exe, DefaultEngineInvoker: Start Request Processing.
TpTrace Information: 0 : 290876, 5, 2017/02/01, 12:30:31.585, 1118376282396, testhost.exe, Discovery Session Initialize.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.617, 1118376375696, testhost.exe, TestPluginCache: Updating loadOnlyWellKnownExtensions from False to False.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.617, 1118376378271, testhost.exe, TestPluginCache: Using directories for assembly resolution 'C:\Users\anurse\Code\anurse\testhost_bindingredirect_issue\Test\bin\Debug\net461'.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.618, 1118376378524, testhost.exe, TestPluginCache: Updated the available extensions to 'C:\Users\anurse\Code\anurse\testhost_bindingredirect_issue\Test\bin\Debug\net461\xunit.runner.visualstudio.testadapter.dll'.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.620, 1118376387420, testhost.exe, TestExecutorService: Loading the extensions
TpTrace Information: 0 : 290876, 5, 2017/02/01, 12:30:31.624, 1118376397935, testhost.exe, Execution started.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.626, 1118376404765, testhost.exe, TestPluginCache: Discovering the extensions using extension path.
TpTrace Error: 0 : 290876, 8, 2017/02/01, 12:30:31.627, 1118376406921, testhost.exe, Default extensions folder does not exist
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.634, 1118376428515, testhost.exe, AssemblyResolver: xunit.runner.visualstudio.testadapter: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.647, 1118376466795, testhost.exe, AssemblyResolver: xunit.runner.visualstudio.testadapter: Resolved assembly. 
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.660, 1118376506913, testhost.exe, TestPluginCache: Discovered the extensions using extension path 'C:\Users\anurse\Code\anurse\testhost_bindingredirect_issue\Test\bin\Debug\net461\xunit.runner.visualstudio.testadapter.dll'.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.662, 1118376512994, testhost.exe, TestPluginCache: Discoverers are 'Xunit.Runner.VisualStudio.TestAdapter.VsTestRunner, xunit.runner.visualstudio.testadapter, Version=2.2.0.1225, Culture=neutral, PublicKeyToken=null'.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.663, 1118376513416, testhost.exe, TestPluginCache: Executors are 'executor://xunit/VsTestRunner2'.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.663, 1118376513678, testhost.exe, TestPluginCache: Setting providers are ''.
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.663, 1118376514073, testhost.exe, TestPluginCache: Loggers are ''.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.700, 1118376624546, testhost.exe, AssemblyResolver: xunit.runner.visualstudio.testadapter, Version=2.2.0.1225, Culture=neutral, PublicKeyToken=null: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.700, 1118376626485, testhost.exe, AssemblyResolver: xunit.runner.visualstudio.testadapter, Version=2.2.0.1225, Culture=neutral, PublicKeyToken=null: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.701, 1118376630006, testhost.exe, TestPluginManager.CreateTestExtension: Attempting to load test extension: Xunit.Runner.VisualStudio.TestAdapter.VsTestRunner
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.702, 1118376630711, testhost.exe, TestDiscoveryManager: LoadExtensions: Created discoverer Xunit.Runner.VisualStudio.TestAdapter.VsTestRunner
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.702, 1118376630956, testhost.exe, TestExecutorService: Loaded the discoverers
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.707, 1118376647989, testhost.exe, TestPluginManager.CreateTestExtension: Attempting to load test extension: Xunit.Runner.VisualStudio.TestAdapter.VsTestRunner
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.708, 1118376648414, testhost.exe, TestExecutorExtensionManager: Loading executor Xunit.Runner.VisualStudio.TestAdapter.VsTestRunner
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.708, 1118376648593, testhost.exe, TestExecutorService: Loaded the executors
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.711, 1118376658515, testhost.exe, TestExecutorService: Loaded the settings providers
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.711, 1118376658852, testhost.exe, TestExecutorService: Loaded the extensions
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.729, 1118376711635, testhost.exe, AssemblyResolver: Microsoft.VisualStudio.TestPlatform.Common.resources, Version=15.0.0.0, Culture=en-US, PublicKeyToken=b03f5f7f11d50a3a: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.729, 1118376712727, testhost.exe, AssemblyResolver: Microsoft.VisualStudio.TestPlatform.Common.resources, Version=15.0.0.0, Culture=en-US, PublicKeyToken=b03f5f7f11d50a3a: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.746, 1118376764161, testhost.exe, TestDiscoveryManager: Discovering tests from sources C:\Users\anurse\Code\anurse\testhost_bindingredirect_issue\Test\bin\Debug\net461\Test.dll
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:31.755, 1118376790356, testhost.exe, BaseRunTests.RunTestInternalWithExecutors: Running tests for executor://xunit/VsTestRunner2
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.792, 1118376900613, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.793, 1118376904109, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.795, 1118376908956, testhost.exe, AssemblyResolver: Microsoft.Extensions.Logging.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.798, 1118376920624, testhost.exe, AssemblyResolver: Microsoft.Extensions.Logging.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.799, 1118376922098, testhost.exe, AssemblyResolver: Microsoft.Extensions.Logging.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.799, 1118376922430, testhost.exe, AssemblyResolver: Microsoft.Extensions.Logging.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.801, 1118376927202, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.805, 1118376938909, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.805, 1118376940215, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.805, 1118376940473, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.807, 1118376945803, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.810, 1118376956536, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.811, 1118376957781, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.811, 1118376958042, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.812, 1118376962215, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Server.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.815, 1118376970940, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Server.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.820, 1118376984048, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.821, 1118376987489, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.822, 1118376991302, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileProviders.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.825, 1118376999963, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileProviders.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.825, 1118377001028, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileProviders.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.825, 1118377001198, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileProviders.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.826, 1118377002570, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:31.826, 1118377002764, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.719, 1118379678951, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.720, 1118379679366, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.720, 1118379680792, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.720, 1118379681026, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.722, 1118379687154, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.724, 1118379691778, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.731, 1118379715128, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.WebUtilities, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.735, 1118379727114, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.WebUtilities, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.748, 1118379763281, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.748, 1118379763650, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.748, 1118379764837, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.748, 1118379765071, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Features, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.749, 1118379767161, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Server.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.749, 1118379767406, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Server.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.750, 1118379769291, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.751, 1118379773463, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.764, 1118379812176, testhost.exe, AssemblyResolver: Microsoft.Extensions.Configuration.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.766, 1118379817341, testhost.exe, AssemblyResolver: Microsoft.Extensions.Configuration.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.768, 1118379824241, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.768, 1118379824633, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.768, 1118379825898, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.769, 1118379826158, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.774, 1118379842001, testhost.exe, AssemblyResolver: Microsoft.Extensions.Configuration, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.775, 1118379845625, testhost.exe, AssemblyResolver: Microsoft.Extensions.Configuration, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.775, 1118379846745, testhost.exe, AssemblyResolver: Microsoft.Extensions.Configuration.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.776, 1118379846948, testhost.exe, AssemblyResolver: Microsoft.Extensions.Configuration.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.780, 1118379860520, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.780, 1118379860771, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.788, 1118379883793, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.788, 1118379884075, testhost.exe, AssemblyResolver: Microsoft.Extensions.Primitives, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.788, 1118379885186, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileProviders.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.788, 1118379885377, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileProviders.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.792, 1118379896465, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileSystemGlobbing, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.796, 1118379907663, testhost.exe, AssemblyResolver: Microsoft.Extensions.FileSystemGlobbing, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.806, 1118379939661, testhost.exe, AssemblyResolver: Microsoft.Extensions.Logging.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.807, 1118379940055, testhost.exe, AssemblyResolver: Microsoft.Extensions.Logging.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.897, 1118380209663, testhost.exe, AssemblyResolver: System.Collections.Immutable, Version=1.2.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.951, 1118380373026, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.951, 1118380373319, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Hosting.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.952, 1118380374250, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.952, 1118380374429, testhost.exe, AssemblyResolver: Microsoft.Extensions.DependencyInjection.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.952, 1118380375249, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.952, 1118380375419, testhost.exe, AssemblyResolver: Microsoft.AspNetCore.Http.Abstractions, Version=1.1.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.961, 1118380402992, testhost.exe, AssemblyResolver: xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.962, 1118380405840, testhost.exe, AssemblyResolver: xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.966, 1118380416977, testhost.exe, AssemblyResolver: xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.966, 1118380417167, testhost.exe, AssemblyResolver: xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.966, 1118380418247, testhost.exe, AssemblyResolver: xunit.core, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.967, 1118380421011, testhost.exe, AssemblyResolver: xunit.core, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.978, 1118380454457, testhost.exe, AssemblyResolver: xunit.runner.utility.desktop, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.979, 1118380457786, testhost.exe, AssemblyResolver: xunit.runner.utility.desktop, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.980, 1118380458627, testhost.exe, AssemblyResolver: xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:32.980, 1118380458799, testhost.exe, AssemblyResolver: xunit.abstractions, Version=2.0.0.0, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolved from cache.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:34.527, 1118385091623, testhost.exe, AssemblyResolver: xunit.execution.desktop, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:34.528, 1118385095299, testhost.exe, AssemblyResolver: xunit.execution.desktop, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolved assembly. 
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:34.528, 1118385095708, testhost.exe, AssemblyResolver: xunit.execution.desktop, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolving assembly.
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:34.528, 1118385095879, testhost.exe, AssemblyResolver: xunit.execution.desktop, Version=2.2.0.3474, Culture=neutral, PublicKeyToken=8d05b1bb7a6fdb6c: Resolved from cache.
TpTrace Information: 0 : 290876, 13, 2017/02/01, 12:30:34.674, 1118385530890, testhost.exe, Sending test run statistics
TpTrace Verbose: 0 : 290876, 13, 2017/02/01, 12:30:34.720, 1118385669089, testhost.exe, TestRunCache: OnNewTestResult: Notified the onCacheHit callback.
TpTrace Warning: 0 : 290876, 13, 2017/02/01, 12:30:34.944, 1118386341043, testhost.exe, InProgressTests is null
TpTrace Information: 0 : 290876, 13, 2017/02/01, 12:30:34.948, 1118386353781, testhost.exe, AssemblyResolver: Microsoft.VisualStudio.TestPlatform.ObjectModel.resources, Version=15.0.0.0, Culture=en-US, PublicKeyToken=b03f5f7f11d50a3a: Resolving assembly.
TpTrace Information: 0 : 290876, 13, 2017/02/01, 12:30:34.949, 1118386354940, testhost.exe, AssemblyResolver: Microsoft.VisualStudio.TestPlatform.ObjectModel.resources, Version=15.0.0.0, Culture=en-US, PublicKeyToken=b03f5f7f11d50a3a: Resolving assembly.
TpTrace Warning: 0 : 290876, 13, 2017/02/01, 12:30:34.950, 1118386358046, testhost.exe, TestRunCache: No test found corresponding to testResult 'UnitTest.Main  Failed
  Message: System.MissingMethodException : Method not found: 'System.Net.Http.HttpClient Microsoft.AspNetCore.TestHost.TestServer.CreateClient()'.
  StackTrace:
   at UnitTest.Main()' in inProgress list.
TpTrace Warning: 0 : 290876, 13, 2017/02/01, 12:30:34.953, 1118386366939, testhost.exe, InProgressTests is null
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:34.998, 1118386501553, testhost.exe, TestExecutionManager.RunTestInternalWithExecutors: Completed running tests for executor://xunit/VsTestRunner2
TpTrace Information: 0 : 290876, 8, 2017/02/01, 12:30:35.001, 1118386512771, testhost.exe, Sending test run complete
TpTrace Verbose: 0 : 290876, 8, 2017/02/01, 12:30:35.021, 1118386572858, testhost.exe, BaseRunTests.RunTests: Run is complete.
TpTrace Information: 0 : 290876, 5, 2017/02/01, 12:30:35.056, 1118386677514, testhost.exe, Session End message received from server. Closing the connection.
TpTrace Information: 0 : 290876, 5, 2017/02/01, 12:30:35.057, 1118386679620, testhost.exe, Closing the connection !

Related issue: aspnet/Hosting#926

/cc @Tratcher @muratg

[natemcmaster]

@anurse and I played around with this more. We think this may be solved by forcing MSBuild to generate binding redirects. This does not normally happen for .NET Framework and OutputType=Library projects.

<PropertyGroup>
  <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
  <GenerateBindingRedirectsOutputType>true</GenerateBindingRedirectsOutputType>
</PropertyGroup>

See: https://github.com/Microsoft/msbuild/blob/dd5e8bc3f86ac98bd77d8971b00a6ad14f122f1a/src/XMakeTasks/Microsoft.Common.CurrentVersion.targets#L2027

[muratg]

@Eilon could you add this to your tracking list for VS2017 RTM?

[analogrelay]

So I guess we'd need to add those MSBuild properties to test projects somehow, preferably through the Test SDK MSBuild package.

[sbaid]

@Eilon @muratg since you are unblocked - we plan to take this in 15.1.

[analogrelay]

This is going to block many people running tests in .NET Framework. As soon as you start adding NuGet packages, you begin to need binding redirects and if this isn't fixed, those redirects will fail and you'll get Assembly Load errors and Missing Method exceptions with no idea how to resolve them. I think this is a pretty important fix.