OpenCover tool only intercepts the last test assembly

Internally OpenCover intercepts the test alias and runs it. The problem however is that the test alias only executes once, for the last test-dll even if there are multiple assemblies found by the globber.

So when running a test runner separately all matching test assemblies are processed…

Task("Run-Unit-Tests")
    .IsDependentOn("Build")
    .Does(() =>
{
    XUnit("./src/**/bin/" + configuration + "/*.Tests.dll");
});

But when running the same test runner within OpenCover, the same test assemblies are found but only the last one is intercepted and processed.

Task("Run-Code-Coverage")
    .IsDependentOn("Build")
    .Does(tool =>
    {
        tool.XUnit("./src/**/bin/" + configuration + "/*.Tests.dll");
    },
    new FilePath("./result.xml"),
    new OpenCoverSettings()
);

The same behavior is observed both with MSTest and XUnit. Perhaps because both of them iterates over the collection and executes the test assemblies one by one?

[jenshorn]

@patriksvensson Well I’ll be damn… It worked! 😃 @devlead As the XUnit2 tool seem to run fine we can leave XUnit1 as is. At least until someone else stumbles over an issue with it 😃

Thanks!

[devlead]

@patriksvensson yeah that would work, could be an issue if tests depend on xunit pre 1.9.2 it could potentially be some breaking changes, but worth a shot 😉 @phrusher One way would be to make the XUnit 1 alias smarter, but that would likely be served best as a separate issue non related to OpenCover.