def METHOD_NAME(tmpdir, get_fn):
    command = ['mdconvert', get_fn('alanine-dipeptide-explicit.binpos'),
               '--top', get_fn('alanine-dipeptide-explicit.prmtop'),
               '-o', 'out.dcd']
    subprocess.check_call(command, cwd=str(tmpdir))
    t = md.load('{}/out.dcd'.format(tmpdir), top=get_fn('alanine-dipeptide-explicit.prmtop'))
    t2 = md.load(get_fn('alanine-dipeptide-explicit.binpos'), top=get_fn('alanine-dipeptide-explicit.prmtop'))
    eq(t.xyz, t2.xyz)
    eq(t.topology, t2.topology)