调试程序在VS 2012中跳过最新的签入代码 - 与VS 2010一起使用

Question

编辑:我刚刚尝试使用VS 2010,问题没有发生.这个问题只发生在VS 2012上.这真的是一个错误吗？这也发生在我的两台独立笔记本电脑上,甚至在朋友的笔记本电脑上(刚刚获得最新代码).

首先,问题的截图.这个方法都是新代码.

调试器正在从我最近的签入中跳过代码.下面的代码中的注释解释了我调试此方法时发生的情况.所以真的没有必要尝试理解代码; 只是注意到正在跳过代码行.如果您认为代码与正在调试的程序集不匹配,请耐心等待.您将看到调试器识别新代码的位置,而不是现有代码.在删除磁盘上的代码并再次获取最新信息之后,这种行为发生在两台不同的笔记本电脑上.每个注释都会告诉您调试器是否命中一行.

[TestMethod()]
[DeploymentItem("PrestoCommon.dll")]
public void ApplicationShouldBeInstalledTest_UseCase9()
{
    // Debugger hits this line
    ApplicationServer appServerAccessor = new ApplicationServer();

    // Debugger does not hit these next two lines
    PrivateObject privateObject = new PrivateObject(appServerAccessor);
    ApplicationServer appServer = ApplicationServerLogic.GetByName("server10");

    // Debugger hits this line. Weirdness: both objects are null, and after this line runs,
    // appServerAccessor is no longer null.
    appServerAccessor.Id = appServer.Id;

    // Skips this line
    ApplicationWithOverrideVariableGroup appWithValidGroup = appServer.ApplicationsWithOverrideGroup[0];

    // Debugger hits this line, but F11 doesn't take me into the method.
    appWithValidGroup.CustomVariableGroup = CustomVariableGroupLogic.GetById("CustomVariableGroups/4");

    // Skips this line
    Assert.AreEqual(true, true);
}

反汇编仅显示实际受到影响的代码行.

现在,看看这个.如果我添加一行新代码,调试器会识别它,并且其他代码行会发生变化,只要调试器能够识别.在方法中,第二行代码是新的.

[TestMethod()]
[DeploymentItem("PrestoCommon.dll")]
public void ApplicationShouldBeInstalledTest_UseCase9()
{
    // Debugger hits this line
    ApplicationServer appServerAccessor = new ApplicationServer();

    // New line. It's recognized by the debugger, and it shows up in the disassembly.
    if (DateTime.Now > DateTime.Now.AddHours(1)) { return; }

    // Debugger does not hit these next two lines
    PrivateObject privateObject = new PrivateObject(appServerAccessor);
    ApplicationServer appServer = ApplicationServerLogic.GetByName("server10");  // Gets hit now.

    // Debugger hits this line. Weirdness: both objects are null, and after this line runs,
    // appServerAccessor is no longer null.
    appServerAccessor.Id = appServer.Id;  // No longer gets hit.

    // Skips this line (now it's getting hit)
    ApplicationWithOverrideVariableGroup appWithValidGroup = appServer.ApplicationsWithOverrideGroup[0];

    // Debugger hits this line, but F11 doesn't take me into the method. Now this gets skipped.
    appWithValidGroup.CustomVariableGroup = CustomVariableGroupLogic.GetById("CustomVariableGroups/4");

    // Skips this line. Still skipped.
    Assert.AreEqual(true, true);
}

这是反汇编的部分快照,显示了新的代码行:

怎么会发生这种情况？

更奇怪的是,这一点甚至回归:

if (DateTime.Now > DateTime.Now.AddDays(1)) { return; }

我尝试过的事情:
- 从硬盘删除源代码并强制获取最新版本
- 修复VS 2012
- 做一些VS 清理
- 使用VS 2010,更改代码,签入,获取VS 2012的最新版本
- 重启
- 其他(不记得所有这些)

Answer 1

这似乎是特定于单元测试的。在VS 2012中：

• 测试 > 测试设置
• 打开选定的测试设置文件
• 数据和诊断 > 取消选择代码覆盖率 (Visual Studio 2010)
• 申请

请注意，我有机会访问源代码，并且下载了 Presto ( http://presto.codeplex.com/ )。