def testSimpleEval(self):
S = RPNCalculator()
val = S.evaluate('3')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate('3 5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
S = RPNCalculator()
val = S.evaluate('3 5 7')
self.assertEqual(val, 7)
self.assertEqual(str(S), '[7*, 5, 3]')
def testEvalAdd(self):
S = RPNCalculator()
val = S.evaluate('3 5 +')
self.assertEqual(val, 8)
self.assertEqual(str(S), '[8*]')
S = RPNCalculator()
val = S.evaluate('3 5 + 2 +')
self.assertEqual(val, 10)
self.assertEqual(str(S), '[10*]')
S = RPNCalculator()
val = S.evaluate('2 3 5 + +')
self.assertEqual(val, 10)
self.assertEqual(str(S), '[10*]')
def testEvalAdd(self):
S = RPNCalculator()
val = S.evaluate('3 5 +')
self.assertEqual(val, 8)
self.assertEqual(str(S), '[8*]')
S = RPNCalculator()
val = S.evaluate('3 5 + 2 +')
self.assertEqual(val, 10)
self.assertEqual(str(S), '[10*]')
S = RPNCalculator()
val = S.evaluate('2 3 5 + +')
self.assertEqual(val, 10)
self.assertEqual(str(S), '[10*]')
def testSimpleEval(self):
S = RPNCalculator()
val = S.evaluate('3')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate('3 5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
S = RPNCalculator()
val = S.evaluate('3 5 7')
self.assertEqual(val, 7)
self.assertEqual(str(S), '[7*, 5, 3]')
def testBadAdd(self):
S = RPNCalculator()
try:
val = S.evaluate('2 + 3')
self.assertTrue(False, 'Evaluate of bad combo failed to raise exception')
except Exception as e:
if not isinstance(e, ValueError):
raise self.fail('RPN eval raised exception that is not ValueError')
self.assertTrue(True)
def testBadAdd(self):
S = RPNCalculator()
try:
val = S.evaluate('2 + 3')
self.assertTrue(False,
'Evaluate of bad combo failed to raise exception')
except Exception as e:
if not isinstance(e, ValueError):
raise self.fail(
'RPN eval raised exception that is not ValueError')
self.assertTrue(True)
def testSimpleEvalWhitespace(self):
S = RPNCalculator()
val = S.evaluate(' 3')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate('3 ')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate(' 3 ')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate('3\t5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
S = RPNCalculator()
val = S.evaluate('3 5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
S = RPNCalculator()
val = S.evaluate('3\t\t5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
def testSimpleEvalWhitespace(self):
S = RPNCalculator()
val = S.evaluate(' 3')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate('3 ')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate(' 3 ')
self.assertEqual(val, 3)
self.assertEqual(str(S), '[3*]')
S = RPNCalculator()
val = S.evaluate('3\t5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
S = RPNCalculator()
val = S.evaluate('3 5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
S = RPNCalculator()
val = S.evaluate('3\t\t5')
self.assertEqual(val, 5)
self.assertEqual(str(S), '[5*, 3]')
def testEvalExample3(self):
S = RPNCalculator()
val = S.evaluate('3 5 + 7 * 8 11 * -')
self.assertEqual(val, -32)
self.assertEqual(str(S), '[-32*]')
def testEvalExample3(self):
S = RPNCalculator()
val = S.evaluate('3 5 + 7 * 8 11 * -')
self.assertEqual(val, -32)
self.assertEqual(str(S), '[-32*]')
