def test_revision_find_rev_tag2():
txt = """print 'tata'
# rev = 1
print 'titi'
assert False
"""
assert get_revision(txt) == 1
def test_revision_return_none_if_no_rev():
txt = """
print 'toto'
print 'rev'
"""
assert get_revision(txt) is None
def test_revision_requires_integer2():
txt = """# rev = 1.2
print 'titi'
"""
assert_raises(ValueError, lambda: get_revision(txt))