from lookup_list import *
import unittest
def have_raised(to_eval, **var):
    have_thrown = False
    try:
        eval(to_eval)
    except :
        have_thrown = True
    return have_thrown

def have_raised2(f, *args, **kwargs):
    have_thrown = False
    try:
        f(*args, **kwargs)
    except :
        have_thrown = True
    return have_thrown

class T_LookUpList(unittest.TestCase):
    def test_LookupList(self):
        #test only the example in the doc???
        example = LookupList(['x','y','z'],[1,2,3])
        example['x'] = [1, 2, 3] # set or change a field
        x, y, z = example
        x = example[0]
        x = example["x"]
        assert example.keys()==['x','y','z']
        assert example.values()==[[1,2,3],2,3]
        assert example.items()==[('x',[1,2,3]),('y',2),('z',3)]
        example.append_keyval('u',0) # adds item with name 'u' and value 0
        assert len(example)==4 # number of items = 4 here
        example2 = LookupList(['v','w'], ['a','b'])
        example3 = LookupList(['x','y','z','u','v','w'], [[1, 2, 3],2,3,0,'a','b'])
        assert example+example2==example3
        assert have_raised("var['x']+var['x']",x=example)

        del example, example2, example3, x, y ,z

if __name__=='__main__':
    unittest.main()