def test_parenthesis(self):
try:
tokenizer = Tokenizer('unimplementedfunction() || True || False')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
tree.evaluate(None)
self.fail()
except Exception, e:
pass
def test_only_necessary_conditions_evaluated(self):
tokenizer = Tokenizer('!( 5 == 6 ) || unimplementedfunction("shouldnt get run because first condition passes")')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
self.assertTrue( tree.evaluate(None) )
tokenizer = Tokenizer('( 5 == 6 ) && unimplementedfunction("shouldnt get run because first condition passes")')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
self.assertFalse( tree.evaluate(None) )
try:
tokenizer = Tokenizer('(5 == 6) || unimplementedfunction("shouldnt get run because first condition passes")')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
tree.evaluate(None)
self.fail()
except Exception, e:
pass
def test_process_expression_preceeded_by_unary_not(self):
tokenizer = Tokenizer("!(5 == 6)")
tree = BooleanExpressionTree(list(tokenizer), test_engine)
self.assertEqual("!(5 == 6)", str(tree))
self.assertTrue( tree.evaluate(None) )
def test_process_two_expressions_and_binary_or(self):
tokenizer = Tokenizer("!( 5 == 6 ) || abs(-1) == 1")
tree = BooleanExpressionTree(list(tokenizer), test_engine)
self.assertEqual("(!(5 == 6) || abs ( - 1 ) == 1)", str(tree))
self.assertTrue( tree.evaluate(None) )
pass
try:
tokenizer = Tokenizer('!(5 == 6) && unimplementedfunction("shouldnt get run because first condition passes")')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
tree.evaluate(None)
self.fail()
except Exception, e:
pass
def test_parenthesis(self):
try:
tokenizer = Tokenizer('unimplementedfunction() || True || False')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
tree.evaluate(None)
self.fail()
except Exception, e:
pass
tokenizer = Tokenizer('unimplementedfunction() || (True || False)')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
self.assertTrue( tree.evaluate(None) )
def test_complex_expression(self):
tokenizer = Tokenizer('value == 2 && !(key in set or y == "some string" || myfunction(param1,"const param 2"))')
tree = BooleanExpressionTree(list(tokenizer), test_engine)
self.assertEqual('(value == 2 && !((key in set or y == "some string") || myfunction ( param1 , "const param 2" )))', str(tree))