Question

我有一个UnitTests.dll，其中引用了Common.dll（都是使用VS2015构建的）。

我有以下目录结构：

C:\Test\
    - UnitTests.dll
    - UnitTests.runsettings    
C:\Bin\
    - Common.dll

UnitTests.runsettings内容如下：

<?xml version="1.0" encoding="utf-8"?>
<RunSettings>
    <RunConfiguration>
        <TargetPlatform>x64</TargetPlatform>
    </RunConfiguration>
    <MSTest>
        <MapInconclusiveToFailed>True</MapInconclusiveToFailed>
        <CaptureTraceOutput>False</CaptureTraceOutput>
        <DeleteDeploymentDirectoryAfterTestRunIsComplete>False</DeleteDeploymentDirectoryAfterTestRunIsComplete>
        <DeploymentEnabled>False</DeploymentEnabled>
        <AssemblyResolution>
            <Directory Path="C:\Bin\" includeSubDirectories="true" />
        </AssemblyResolution>
    </MSTest>    
</RunSettings>

我调用了测试：

C:\Test> vstest.console.exe UnitTests.dll /settings:UnitTests.runsettings /inIsolation

vstest.console.exe指 C：\ Program Files（x86）\ Microsoft Visual Studio 14.0 \ Common7 \ IDE \ CommonExtensions \ Microsoft \ TestWindow \ vstest.console.exe 。

我收到以下错误：

Starting test execution, please wait... 
Failed   TestMethod1 
Error Message:
    Test method UnitTests.UnitTest1.TestMethod1 threw exception: System.IO.FileNotFoundException: Could not load file or assembly 'Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.

Stack Trace:
    at UnitTests.UnitTest1.TestMethod1()

更多，启用Fusion Log：

Starting test execution, please wait... 
Failed   TestMethod1 
Error Message:
    Test method UnitTests.UnitTest1.TestMethod1 threw exception: System.IO.FileNotFoundException: Could not load file or assembly 'Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
=== Pre-bind state information === 
LOG: DisplayName = Common, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
  (Fully-specified)
LOG: Appbase = file:///C:/Test 
LOG: Initial PrivatePath = NULL 
Calling assembly : UnitTests, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null.
=== LOG: This bind starts in default load context. 
LOG: Using application configuration file: 
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow\vstest.executionengine.exe.Config 
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config. 
LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind). 
LOG: Attempting download of new URL file:///C:/Test/Common.DLL. 
LOG: Attempting download of new URL file:///C:/Test/Common/Common.DLL. 
LOG: Attempting download of new URL file:///C:/Test/Common.EXE. 
LOG: Attempting download of new URL file:///C:/Test/Common/Common.EXE.

Stack Trace:
    at UnitTests.UnitTest1.TestMethod1()

我是否面临某种缓存问题？如何说服vstest.console.exe寻找C:\Bin\内的依赖关系（理论上由AssemblyResolution元素指出）？

更新

Submitted as a bug to MSFT on connect （使用repro步骤 - 在底部的DETAILS选项卡下）。

装配解决方案的现有限制以及强制使用DeploymentItem属性，根本无法扩展。冗余维护成本（开发人员被迫手动跟踪单元测试运行所需的依赖关系）会给测试带来摩擦。由于这种摩擦而出现的任何问题都很难排除故障。

Answer 1

似乎Runsettings MSDN documentation在Directory元素中有拼写错误，属性path必须小写才能正常工作。如果指定

，您的runsettings文件应该有效

    <AssemblyResolution>
        <Directory path="C:\Bin\" includeSubDirectories="true" />
    </AssemblyResolution>

Answer 2

为所有必需文件设置DeploymentItemAttribute：

[DeploymentItem("Common.dll")]
[DeploymentItem("Common2.dll")]
[TestMethod]
public void TestFoo()
{
    Bar();
}

vstset.console.exe程序集解析失败

2 个答案: