No local source

  $ hg clone a b

  abort: repository a not found!

  [255]

No remote source

  $ hg clone http://127.0.0.1:3121/a b

  abort: error: Connection refused

  [255]

  $ rm -rf b # work around bug with http clone

Inaccessible source

  $ mkdir a

  $ chmod 000 a

  $ hg clone a b

  abort: repository a not found!

  [255]

Inaccessible destination

  $ hg init b

  $ cd b

  $ hg clone . ../a

  abort: Permission denied: ../a

  [255]

  $ cd ..

  $ chmod 700 a

  $ rm -r a b

Source of wrong type

  $ if "$TESTDIR/hghave" -q fifo; then

  >     mkfifo a

  >     hg clone a b

  >     rm a

  > else

  >     echo "abort: repository a not found!"

  > fi

  abort: repository a not found!

Default destination, same directory

  $ hg init q

  $ hg clone q

  destination directory: q

  abort: destination 'q' is not empty

  [255]

destination directory not empty

  $ mkdir a 

  $ echo stuff > a/a

  $ hg clone q a

  abort: destination 'a' is not empty

  [255]

leave existing directory in place after clone failure

  $ hg init c

  $ cd c

  $ echo c > c

  $ hg commit -A -m test

  adding c

  $ chmod -rx .hg/store/data

  $ cd ..

  $ mkdir d

  $ hg clone c d 2> err

  [255]

  $ test -d d

  $ test -d d/.hg

  [1]

reenable perm to allow deletion

  $ chmod +rx c/.hg/store/data