- aspnet/Testing#248
- xUnit no longer supports .NET 4.5.1
- build tests for desktop .NET only on Windows
Address existing issues
- work around test failures, including #350
- skip tests mentioned in #350
- reorder xunit and xunit.runner.visualstudio; setup fails for .NET Core otherwise
- skip all tests using LocalDB on Linux and OSX
- `[FrameworkSkipCondition(RuntimeFrameworks.Mono)]` now redundant
- correct AppVeyor image
nits:
- let VS add the test `<Service>`
- use `[ConditionalFact]` when there's no test data