Question

我试图运行一些单元测试，直接执行一些SQL命令到Oracle数据库，并在启动单元测试时得到以下异常：

Testmethod1引发异常：
System.IO.FileNotFoundException：无法加载文件或程序集＆＃39; Oracle.DataAccess，Version = 4.112.3.0，Culture = neutral，PublicKeyToken = 89b483f429c47342＆＃39;或其中一个依赖项。系统找不到指定的文件。

我在项目引用中有Oracle.DataAccess（通过NuGet添加），我已经安装了Oracle数据提供程序。

我甚至还有一些使用Oracle.DataAccess的其他项目在这台机器上运行没有问题。似乎只有Microsoft.Net单元测试框架（MSTest）无法加载程序集。

这是从Fusion Log Viewer获取的日志：

*** Assembly Binder Log Entry  (23/08/2013 @ 04:50:07 p.m.) ***

The operation failed.
Bind result: hr = 0x80070002. The system cannot find the file specified.

Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Running under executable  C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\QTAgent32_40.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: User = ...
LOG: DisplayName = Oracle.DataAccess, Version=4.112.3.0, Culture=neutral, PublicKeyToken=89b483f429c47342
 (Fully-specified)
LOG: Appbase = file:///...C:/<solution_folder>.../TestResults/.../Out
LOG: Initial PrivatePath = NULL
LOG: Dynamic Base = NULL
LOG: Cache Base = NULL
LOG: AppName = QTAgent32_40.exe
Calling assembly : ...<project_name>..., Version=1.0.0.0, Culture=neutral, PublicKeyToken=null.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\...<solution_folder>...\TestResults\...\Out\...<project_name>....DLL.config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Post-policy reference: Oracle.DataAccess, Version=4.112.3.0, Culture=neutral, PublicKeyToken=89b483f429c47342
LOG: GAC Lookup was unsuccessful.
LOG: Attempting download of new URL file:///C:/...<solution_folder>.../TestResults/.../Out/Oracle.DataAccess.DLL.
LOG: Attempting download of new URL file:///C:/...<solution_folder>.../TestResults/.../Out/Oracle.DataAccess/Oracle.DataAccess.DLL.
LOG: Attempting download of new URL file:///C:/...<solution_folder>.../TestResults/.../Out/Oracle.DataAccess.EXE.
LOG: Attempting download of new URL file:///C:/...<solution_folder>.../TestResults/.../Out/Oracle.DataAccess/Oracle.DataAccess.EXE.
LOG: All probing URLs attempted and failed.

它说明在GAC中找不到程序集，但我确实找到了它：C:\Windows\Microsoft.NET\assembly\GAC_64\Oracle.DataAccess\v4.0_4.112.3.0__89b483f429c47342\Oracle.DataAccess.dll\

值得注意的是，即使我在Visual Studio菜单QTAgent32_40.exe中进行了选择，上面的日志也会显示TEST -> Test Settings -> Default Processor Architecture -> X64。在此之前，我得到的是BadImageFormatException。

附加说明：

我安装的Oracle数据提供程序是64位版本。
该引用已有Copy Local=True

Answer 1

发现问题。

有一个.testsettings文件强制测试以32位模式运行，无论我选择TEST -> Test Settings -> Default Processor Architecture -> X64。

奇怪的是，如果我选择X86，我会在运行时获得正确的BadImageFormatException，而如果在.testsettings文件中强制使用架构，我会得到FileNotFoundException，这有点误导。< / p>

System.IO.FileNotFoundException：无法加载文件或程序集'Oracle.DataAccess，...运行单元测试时

1 个答案: