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Visual Studio "Debug Unit Test" fails to hit breakpoints

When using Visual Studio 2008 and debugging my unit tests... sometimes the debugger works fine. However very often after modifying some code then clicking "Debug Unit Test" Visual Studio will fail to hit the breakpoints in the code. The debugger basically hangs and eventually the tests runs with the new code anyway, but never stops to let me see what is going on.

I'm assuming this has something to do with some type of assembly caching done by the debugger, but not matter what I do (clean project, delete bin folders, restart VS, etc) I can never get the right assembly to load. Has anyone else seen this behavior? Any solutions?

By the way, using Resharper 4.5, and .NET 3.5 on Win XP.

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sym3tri Avatar asked Dec 02 '10 05:12

sym3tri


People also ask

Why are my breakpoints not hitting?

If a source file has changed and the source no longer matches the code you're debugging, the debugger won't set breakpoints in the code by default. Normally, this problem happens when a source file is changed, but the source code wasn't rebuilt. To fix this issue, rebuild the project.

How do I hit a breakpoint in Visual Studio?

Set breakpoints in source code To set a breakpoint in source code, click in the far left margin next to a line of code. You can also select the line and press F9, select Debug > Toggle Breakpoint, or right-click and select Breakpoint > Insert breakpoint. The breakpoint appears as a red dot in the left margin.


2 Answers

I just had a problem hitting breakpoints in VS2015.

I am always using the solution configuration called Debug but for some reason my solution was set to build the Release version.

Switching from Release to Debug in the dropdown at the top of Visual Studio fixed my problem.

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Helo Avatar answered Sep 20 '22 08:09

Helo


Right click + Run Test(s) will not hit the breakpoint.

Right click + Debug Test(s) will!

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Luis Gouveia Avatar answered Sep 20 '22 08:09

Luis Gouveia