import os

from mercurial import hg, ui

from mercurial.scmutil import walkrepos

from os import mkdir, chdir

from os.path import join as pjoin

u = ui.ui()

sym = hasattr(os, 'symlink') and hasattr(os.path, 'samestat')

hg.repository(u, 'top1', create=1)

mkdir('subdir')

chdir('subdir')

hg.repository(u, 'sub1', create=1)

mkdir('subsubdir')

chdir('subsubdir')

hg.repository(u, 'subsub1', create=1)

chdir(os.path.pardir)

if sym:

    os.symlink(os.path.pardir, 'circle')

    os.symlink(pjoin('subsubdir', 'subsub1'), 'subsub1')

def runtest():

    reposet = frozenset(walkrepos('.', followsym=True))

    if sym and (len(reposet) != 3):

        print "reposet = %r" % (reposet,)

        print "Found %d repositories when I should have found 3" % (len(reposet),)

    if (not sym) and (len(reposet) != 2):

        print "reposet = %r" % (reposet,)

        print "Found %d repositories when I should have found 2" % (len(reposet),)

    sub1set = frozenset((pjoin('.', 'sub1'),

                         pjoin('.', 'circle', 'subdir', 'sub1')))

    if len(sub1set & reposet) != 1:

        print "sub1set = %r" % (sub1set,)

        print "reposet = %r" % (reposet,)

        print "sub1set and reposet should have exactly one path in common."

    sub2set = frozenset((pjoin('.', 'subsub1'),

                         pjoin('.', 'subsubdir', 'subsub1')))

    if len(sub2set & reposet) != 1:

        print "sub2set = %r" % (sub2set,)

        print "reposet = %r" % (reposet,)

        print "sub1set and reposet should have exactly one path in common."

    sub3 = pjoin('.', 'circle', 'top1')

    if sym and not (sub3 in reposet):

        print "reposet = %r" % (reposet,)

        print "Symbolic links are supported and %s is not in reposet" % (sub3,)

runtest()

if sym:

    # Simulate not having symlinks.

    del os.path.samestat

    sym = False

    runtest()