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import li_constraints
def check_double(et, fn, f, val):
actual = True
proper = False
try:
fn(val)
except ValueError as e:
actual = False
proper = "Expected a " + f + " value." == "%s"%(e)
if actual:
if not et:
raise Exception("function '%s' with %d should perform an exception"%(f, val))
else:
if et:
raise Exception("function '%s' with %d should not perform an exception"%(f, val))
elif not proper:
raise Exception("function '%s' with %d should perform a proper exception"%(f, val))
pass
nonnegative = lambda v : li_constraints.test_nonnegative(v)
check_double(True, nonnegative, "non-negative", 10)
check_double(True, nonnegative, "non-negative", 0)
check_double(False, nonnegative, "non-negative", -10)
nonpositive = lambda v : li_constraints.test_nonpositive(v)
check_double(False, nonpositive, "non-positive", 10)
check_double(True, nonpositive, "non-positive", 0)
check_double(True, nonpositive, "non-positive", -10)
positive = lambda v : li_constraints.test_positive(v)
check_double(True, positive, "positive", 10)
check_double(False, positive, "positive", 0)
check_double(False, positive, "positive", -10)
negative = lambda v : li_constraints.test_negative(v)
check_double(False, negative, "negative", 10)
check_double(False, negative, "negative", 0)
check_double(True, negative, "negative", -10)
nonzero = lambda v : li_constraints.test_nonzero(v)
check_double(True, nonzero, "nonzero", 10)
check_double(False, nonzero, "nonzero", 0)
check_double(True, nonzero, "nonzero", -10)
have_exception = False
try:
li_constraints.test_nonnull(None)
except ValueError as e:
have_exception = "Received a NULL pointer." == "%s"%(e)
if not have_exception:
raise Exception("test_nonnull should perform exception with 'null' value")
nonnull = li_constraints.get_nonnull()
li_constraints.test_nonnull(nonnull)
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