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import py
from rpython.tool.frozenlist import frozenlist
def test_frozenlist():
l = frozenlist([1, 2, 3])
assert l[0] == 1
assert l[:2] == [1, 2]
assert l.index(2) == 1
py.test.raises(TypeError, "l[0] = 1")
py.test.raises(TypeError, "del l[0]")
py.test.raises(TypeError, "l[:] = []")
py.test.raises(TypeError, "del l[:]")
py.test.raises(TypeError, "l += []")
py.test.raises(TypeError, "l *= 2")
py.test.raises(TypeError, "l.append(1)")
py.test.raises(TypeError, "l.insert(0, 0)")
py.test.raises(TypeError, "l.pop()")
py.test.raises(TypeError, "l.remove(1)")
py.test.raises(TypeError, "l.reverse()")
py.test.raises(TypeError, "l.sort()")
py.test.raises(TypeError, "l.extend([])")
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