$ echo "[extensions]" >> $HGRCPATH

  $ echo "mq=" >> $HGRCPATH

  $ hg init foo

  $ cd foo

  $ echo a > a

  $ hg ci -qAm a

Default queue:

  $ hg qqueue

  patches (active)

  $ echo b > a

  $ hg qnew -fgDU somestuff

Applied patches in default queue:

  $ hg qap

  somestuff

Try to change patch (create succeeds, switch fails):

  $ hg qqueue foo --create

  abort: new queue created, but cannot make active as patches are applied

  [255]

  $ hg qqueue

  foo

  patches (active)

Empty default queue:

  $ hg qpop

  popping somestuff

  patch queue now empty

Switch queue:

  $ hg qqueue foo

  $ hg qqueue

  foo (active)

  patches

List queues, quiet:

  $ hg qqueue --quiet

  foo

  patches

Fail creating queue with already existing name:

  $ hg qqueue --create foo

  abort: queue "foo" already exists

  [255]

  $ hg qqueue

  foo (active)

  patches

Create new queue for rename:

  $ hg qqueue --create bar

  $ hg qqueue

  bar (active)

  foo

  patches

Rename queue, same name:

  $ hg qqueue --rename bar

  abort: can't rename "bar" to its current name

  [255]

Rename queue to existing:

  $ hg qqueue --rename foo

  abort: queue "foo" already exists

  [255]

Rename queue:

  $ hg qqueue --rename buz

  $ hg qqueue

  buz (active)

  foo

  patches

Switch back to previous queue:

  $ hg qqueue foo

  $ hg qqueue --delete buz

  $ hg qqueue

  foo (active)

  patches

Create queue for purge:

  $ hg qqueue --create purge-me

  $ hg qqueue

  foo

  patches

  purge-me (active)

Create patch for purge:

  $ hg qnew patch-purge-me

  $ ls -1d .hg/patches-purge-me 2>/dev/null || true

  .hg/patches-purge-me

  $ hg qpop -a

  popping patch-purge-me

  patch queue now empty

Purge queue:

  $ hg qqueue foo

  $ hg qqueue --purge purge-me

  $ hg qqueue

  foo (active)

  patches

  $ ls -1d .hg/patches-purge-me 2>/dev/null || true

Unapplied patches:

  $ hg qun

  $ echo c > a

  $ hg qnew -fgDU otherstuff

Fail switching back:

  $ hg qqueue patches

  abort: new queue created, but cannot make active as patches are applied

  [255]

Fail deleting current:

  $ hg qqueue foo --delete

  abort: cannot delete currently active queue

  [255]

Switch back and delete foo:

  $ hg qpop -a

  popping otherstuff

  patch queue now empty

  $ hg qqueue patches

  $ hg qqueue foo --delete

  $ hg qqueue

  patches (active)

Tricky cases:

  $ hg qqueue store --create

  $ hg qnew journal

  $ hg qqueue

  patches

  store (active)

  $ hg qpop -a

  popping journal

  patch queue now empty

  $ hg qqueue patches

  $ hg qun

  somestuff

Invalid names:

  $ hg qqueue test/../../bar --create

  abort: invalid queue name, may not contain the characters ":\/."

  [255]

  $ hg qqueue . --create

  abort: invalid queue name, may not contain the characters ":\/."

  [255]

  $ cd ..