import nose
import temperatura
 
def test_freezing():
    '''Test freezing point.'''
    assert to_celsius(32) == 0
 
def test_boiling():
    '''Test boiling point.'''
    assert to_celsius(212) == 100
 
def test_roundoff():
    '''Test that roundoff works.'''
    assert to_celsius(100) == 38 # NOT 37.777...
 
def test_above_freezing():
    '''Test function for above_freezing.'''
    assert above_freezing(89.4), 'A temperature above freezing.'
    assert not above_freezing(-42), 'A temperature below freezing.'
    assert not above_freezing(0), 'A temperature at freezing.'
 
if __name__ == '__main__':
    nose.runmodule()