Diskussion:Kurs Python richtig lernen/Unit Testing: Unterschied zwischen den Versionen
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Version vom 12. September 2012, 15:45 Uhr
Aufgabe 1
from src.bank import BankAccount from nose.tools import raises def test_deposit_on_empty_account(): b = BankAccount() b.deposit(100) assert b.balance == 100 def test_deposit_with_initial_balance(): b = BankAccount(10) b.deposit(100) assert b.balance == 110 @raises(ValueError) def test_withdraw_with_too_high_amount(): b = BankAccount(10) b.withdraw(100) def test_withdraw_ok(): b = BankAccount(110) b.withdraw(100) assert b.balance == 10
Aufgabe 2
from src.rational import * from nose.tools import raises def test_gcd(): assert gcd(4, 4) == 4 assert gcd(4, 2) == 2 assert gcd(3, 6) == 3 assert gcd(12, 9) == 3 @raises(ValueError) def test_zero_denominator_raises_error(): Rational(3, 0) def test_add(): r1 = Rational(7, 3) r2 = Rational(6, 3) assert Rational(13, 3) == r1 + r2 def test_sub(): r1 = Rational(12, 3) r2 = Rational(6, 3) assert Rational(2, 1) == r1 - r2 def test_mul(): r1 = Rational(2, 3) r2 = Rational(4, 3) assert Rational(8, 9) == r1 * r2 def test_div(): r1 = Rational(2, 3) r2 = Rational(4, 3) assert Rational(1, 2) == r1 / r2 def test_str(): assert "2/3" == str(Rational(2, 3)) def test_eq(): assert Rational(2, 3) == Rational(2, 3) assert Rational(2, 3) != Rational(1, 3) def test_float(): assert 0.75 == float(Rational(3, 4))