# Test case for shutil.make_archive() to make sure that, given identical
# inputs, an identical tarfile is output.


import os
import random
import shutil
import tempfile


def create_tar(tar_path):
    '''Create a tar with some dummy files.

    The data is the same each time but it is written to disk in a random order.

    '''
    tempdir = tempfile.mkdtemp()
    try:
        contents = ['a', 'b', 'c', 'd']
        atime = 1234578
        random.shuffle(contents)
        for filename in contents:
            path = os.path.join(tempdir, filename)
            with open(path, 'w') as f:
                f.write('Blah\n')
            os.utime(path, (atime, atime))
        shutil.make_archive(base_name=tar_path, format='tar', root_dir=tempdir)
    finally:
        shutil.rmtree(tempdir)


for i in range(0,3):
    path = '/tmp/tar-%i' % i
    create_tar(path)
    print(path + '.tar')