Module algebraic_object.test
Test the Class Polynomial from
Polynomial.
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"""
Test the Class Polynomial from
``algebraic_object.algebraic_object.Polynomial``.
"""
import inspect
import sys
import algebraic_object as ao
def test_init_args():
p = ao.Polynomial(1, 2, 3)
assert p.coef == {"x0": 1, "x1": 2, "x2": 3}
assert p.degree == 2
def test_init_kw():
p = ao.Polynomial(x9=3, x2=1.0)
assert p.coef == {"x9": 3, "x2": 1.0}
assert p.degree == 9
def test_init_args_kw():
p = ao.Polynomial(1, 2, 3, x10=12)
assert p.coef == {"x0": 1, "x1": 2, "x2": 3, "x10": 12}
assert p.degree == 10
def test_init_no_value():
try:
p = ao.Polynomial()
except TypeError as err:
assert str(err) == ao.MSG_ERROR_ARG
def test_init_bad_key():
try:
p = ao.Polynomial(badkey=1)
except TypeError as err:
assert str(err) == ao.MSG_ERROR_KW.format("badkey")
def test_init_bad_value():
try:
p = ao.Polynomial("2")
except TypeError as err:
assert str(err) == ao.MSG_ERROR_VAL.format("Coefficients", "str")
def test_change_degree():
try:
p = ao.Polynomial(2)
p.degree = 5
except AttributeError as err:
assert str(err) == "can't set attribute"
def test_change_coef():
try:
p = ao.Polynomial(2)
p.coef = [1, 2, 3]
except AttributeError as err:
assert str(err) == "can't set attribute"
def test_update_coef():
p = ao.Polynomial(2)
p.coef["x1"] = 4.5
assert p.degree == 1
def test_add_sub_pol():
p = ao.Polynomial(1, 2, 3)
r = ao.Polynomial(3, 4)
q = p + r
s = p - r
assert q.coef == ao.Polynomial(4, 6, 3).coef
assert s.coef == ao.Polynomial(-2, -2, 3).coef
def test_mul_scalar():
p = ao.Polynomial(1, 2, 3)
r = 2 * p
q = p * 2
assert r.coef == ao.Polynomial(2, 4, 6).coef
assert q.coef == ao.Polynomial(2, 4, 6).coef
def test_mul_pol():
p = ao.Polynomial(1, 2, 3)
r = ao.Polynomial(3, 4)
q = p * r
assert q.coef == ao.Polynomial(3, 10, 17, 12).coef
def test_add_other():
try:
p = ao.Polynomial(1, 2, 3)
r = p + 1
except TypeError as err:
assert str(err) == ao.MSG_ERROR_OPER.format(" +: 'int' ")
def test_sub_other():
try:
p = ao.Polynomial(1, 2, 3)
r = p - 1.8
except TypeError as err:
assert str(err) == ao.MSG_ERROR_OPER.format(" -: 'float' ")
def test_mul_other():
try:
p = ao.Polynomial(1, 2, 3)
r = [2] * p
except TypeError as err:
assert str(err) == ao.MSG_ERROR_OPER.format(" *: 'list' ")
def test_eval():
p = ao.Polynomial(1, 2, 3)
assert p(5) == 86
def test_bad_eval():
try:
p = ao.Polynomial(1, 2, 3)
p("5")
except TypeError as err:
assert str(err) == ao.MSG_ERROR_VAL.format("Value", "str")
def call_test(module):
all_functions = inspect.getmembers(module, inspect.isfunction)
for key, value in all_functions:
if str(inspect.signature(value)) == "()":
print(key, " ... ", end="")
value()
print("Ok!")
if __name__ == "__main__":
call_test(sys.modules[__name__])
print("Everything passed")Functions
def call_test(module)-
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def call_test(module): all_functions = inspect.getmembers(module, inspect.isfunction) for key, value in all_functions: if str(inspect.signature(value)) == "()": print(key, " ... ", end="") value() print("Ok!") def test_add_other()-
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def test_add_other(): try: p = ao.Polynomial(1, 2, 3) r = p + 1 except TypeError as err: assert str(err) == ao.MSG_ERROR_OPER.format(" +: 'int' ") def test_add_sub_pol()-
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def test_add_sub_pol(): p = ao.Polynomial(1, 2, 3) r = ao.Polynomial(3, 4) q = p + r s = p - r assert q.coef == ao.Polynomial(4, 6, 3).coef assert s.coef == ao.Polynomial(-2, -2, 3).coef def test_bad_eval()-
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def test_bad_eval(): try: p = ao.Polynomial(1, 2, 3) p("5") except TypeError as err: assert str(err) == ao.MSG_ERROR_VAL.format("Value", "str") def test_change_coef()-
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def test_change_coef(): try: p = ao.Polynomial(2) p.coef = [1, 2, 3] except AttributeError as err: assert str(err) == "can't set attribute" def test_change_degree()-
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def test_change_degree(): try: p = ao.Polynomial(2) p.degree = 5 except AttributeError as err: assert str(err) == "can't set attribute" def test_eval()-
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def test_eval(): p = ao.Polynomial(1, 2, 3) assert p(5) == 86 def test_init_args()-
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def test_init_args(): p = ao.Polynomial(1, 2, 3) assert p.coef == {"x0": 1, "x1": 2, "x2": 3} assert p.degree == 2 def test_init_args_kw()-
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def test_init_args_kw(): p = ao.Polynomial(1, 2, 3, x10=12) assert p.coef == {"x0": 1, "x1": 2, "x2": 3, "x10": 12} assert p.degree == 10 def test_init_bad_key()-
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def test_init_bad_key(): try: p = ao.Polynomial(badkey=1) except TypeError as err: assert str(err) == ao.MSG_ERROR_KW.format("badkey") def test_init_bad_value()-
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def test_init_bad_value(): try: p = ao.Polynomial("2") except TypeError as err: assert str(err) == ao.MSG_ERROR_VAL.format("Coefficients", "str") def test_init_kw()-
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def test_init_kw(): p = ao.Polynomial(x9=3, x2=1.0) assert p.coef == {"x9": 3, "x2": 1.0} assert p.degree == 9 def test_init_no_value()-
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def test_init_no_value(): try: p = ao.Polynomial() except TypeError as err: assert str(err) == ao.MSG_ERROR_ARG def test_mul_other()-
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def test_mul_other(): try: p = ao.Polynomial(1, 2, 3) r = [2] * p except TypeError as err: assert str(err) == ao.MSG_ERROR_OPER.format(" *: 'list' ") def test_mul_pol()-
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def test_mul_pol(): p = ao.Polynomial(1, 2, 3) r = ao.Polynomial(3, 4) q = p * r assert q.coef == ao.Polynomial(3, 10, 17, 12).coef def test_mul_scalar()-
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def test_mul_scalar(): p = ao.Polynomial(1, 2, 3) r = 2 * p q = p * 2 assert r.coef == ao.Polynomial(2, 4, 6).coef assert q.coef == ao.Polynomial(2, 4, 6).coef def test_sub_other()-
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def test_sub_other(): try: p = ao.Polynomial(1, 2, 3) r = p - 1.8 except TypeError as err: assert str(err) == ao.MSG_ERROR_OPER.format(" -: 'float' ") def test_update_coef()-
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def test_update_coef(): p = ao.Polynomial(2) p.coef["x1"] = 4.5 assert p.degree == 1