`render::tui` test blocks indefinitely on Windows

[EliahKagan]

#52 fixed a bug on CI where no Windows tests were ever run, due to the errant fragment progress-tree" (with an unmatched ") being parsed in a way that it caused all tests to be filtered out.

Actually running the Windows tests on CI revealed that the render::tui test blocks indefinitely, as seen in this test run, where I allowed it to continue running until the job was automatically cancelled due to how long it had been running.

cargo test reported that it took over 60 seconds, but to be clear, it then continued running for a number of hours before GHA cancelled the job. I also did try running it other times to ensure that it wasn't due to an intermittent problem on CI (this was actually the second run).

I worked around this in #52 by skipping that test. All other tests passed, so I merged the PR, since this seems to have been a long-standing probem that was surfaced but not caused by actually running the tests on Windows. So I figured this should have its own issue, if it doesn't already.

[Byron]

Thanks a lot for reporting!

It looks like a better workaround could be to simply not run the test, even on Linux. Saying it should panic due to the "Device not ready" seems very platform dependent, and I think on Windows it might have the problem to succeed and actually run forever?

To my mind, nothing is lost for not running it, it only matters that it compiles.
What do you think?

[EliahKagan]

I'm not sure. But running it makes it easier to verify that it compiles. And there might be value to a test of particular platform-dependent behavior on a platform where it's expected to continue--even if that expectation is weak. So I wouldn't be confident that changing it never to run anywhere would be an improvement. But I also haven't looked into this as closely as I could.

[Byron]

Maybe an alternative to handling this in running doc-tests would be to run the example with a timeout prefix. That should run as it's in a terminal an exercise the same code.