view tests/test-dirstate-backup.t @ 40144:acf560bc9b56

perf: extract the timing of a section in a context manager

This makes it easier to reuse it in other (future) part of the code that
requires their own time management.

Set up

  $ hg init repo
  $ cd repo

Try to import an empty patch

  $ hg import --no-commit - <<EOF
  > EOF
  applying patch from stdin
  abort: stdin: no diffs found
  [255]

No dirstate backups are left behind

  $ ls .hg/dirstate* | sort
  .hg/dirstate