------ Test dirstate._dirs refcounting

  $ hg init t

  $ cd t

  $ mkdir -p a/b/c/d

  $ touch a/b/c/d/x

  $ touch a/b/c/d/y

  $ touch a/b/c/d/z

  $ hg ci -Am m

  adding a/b/c/d/x

  adding a/b/c/d/y

  adding a/b/c/d/z

  $ hg mv a z

  moving a/b/c/d/x to z/b/c/d/x (glob)

  moving a/b/c/d/y to z/b/c/d/y (glob)

  moving a/b/c/d/z to z/b/c/d/z (glob)

Test name collisions

  $ rm z/b/c/d/x

  $ mkdir z/b/c/d/x

  $ touch z/b/c/d/x/y

  $ hg add z/b/c/d/x/y

  abort: file 'z/b/c/d/x' in dirstate clashes with 'z/b/c/d/x/y'

  [255]

  $ rm -rf z/b/c/d

  $ touch z/b/c/d

  $ hg add z/b/c/d

  abort: directory 'z/b/c/d' already in dirstate

  [255]

  $ cd ..

Issue1790: dirstate entry locked into unset if file mtime is set into

the future

Prepare test repo:

  $ hg init u

  $ cd u

  $ echo a > a

  $ hg add

  adding a

  $ hg ci -m1

Set mtime of a into the future:

  $ touch -t 202101011200 a

Status must not set a's entry to unset (issue1790):

  $ hg status

  $ hg debugstate

  n 644          2 2021-01-01 12:00:00 a

Test modulo storage/comparison of absurd dates:

#if no-aix

  $ touch -t 195001011200 a

  $ hg st

  $ hg debugstate

  n 644          2 2018-01-19 15:14:08 a

#endif