from numpy.testing import *
import numpy.lib.utils as utils
from numpy.lib import deprecate

from StringIO import StringIO

def test_lookfor():
    out = StringIO()
    utils.lookfor('eigenvalue', module='numpy', output=out,
                  import_modules=False)
    out = out.getvalue()
    assert 'numpy.linalg.eig' in out


@deprecate
def old_func(self, x):
    return x

@deprecate(message="Rather use new_func2")
def old_func2(self, x):
    return x

def old_func3(self, x):
    return x
new_func3 = deprecate(old_func3, old_name="old_func3", new_name="new_func3")

def test_deprecate_decorator():
    assert 'deprecated' in old_func.__doc__

def test_deprecate_decorator_message():
    assert 'Rather use new_func2' in old_func2.__doc__

def test_deprecate_fn():
    assert 'old_func3' in new_func3.__doc__
    assert 'new_func3' in new_func3.__doc__

if __name__ == "__main__":
    run_module_suite()