view tests/test-hghave.t @ 20542:be27652675ce

util: debugstacktrace, flush before and after writing

Close another stream (default stdout, which often is buffered) before writing
to the primary stream (default stderr, which often is unbuffered). The primary
stream is also flushed after writing (in case it is buffered).

This fixes non-deterministic output order, especially on windows.

Testing that hghave does not crash when checking features

  $ "$TESTDIR/hghave" --test-features 2>/dev/null