System.IO.FileNotFoundException：無法加載文件或程序集'Oracle.DataAccess，...當運行單元測試

Question

我試圖運行一些單元測試，執行一些SQL命令直接到Oracle數據庫，我得到當單元測試開始以下例外：

Testmethod1拋出異常：
System.IO.FileNotFoundException：未能加載文件或程序集「Oracle.DataAccess，版本= 4.112.3.0文化=中性公鑰= 89b483f429c47342'或其依賴項之一。該系統找不到指定的文件。

我有Oracle.DataAccess在項目引用（通過NuGet添加），我有我已經安裝了Oracle數據提供程序。

我甚至有一些其他項目使用Oracle.DataAccess在本機上運行沒有問題。似乎只有Microsoft.Net單元測試框架（MSTest）無法加載程序集。

這是融合日誌查看器所採取的日誌：

*** 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. 

它指出，大會沒有在GAC發現的，但我沒發現它：C:\Windows\Microsoft.NET\assembly\GAC_64\Oracle.DataAccess\v4.0_4.112.3.0__89b483f429c47342\Oracle.DataAccess.dll\

另外值得一提的是，以上日誌顯示QTAgent32_40.exe即使我已在Visual Studio菜單TEST -> Test Settings -> Default Processor Architecture -> X64中選擇。在此之前，我得到了BadImageFormatException。

其他注意事項：

• ，我已經安裝了Oracle數據提供程序是64位版本。
• 參考已有Copy Local=True

Answer 1

發現這個問題。

有一個.testsettings文件強制測試運行在32位模式不管我選擇TEST -> Test Settings -> Default Processor Architecture -> X64。

奇怪的是，如果我選擇X86，我會在運行時得到正確的BadImageFormatException，而如果架構被強制在.testsettings文件中，我得到FileNotFoundException，這有點誤導。