def test_unidirectional(self):
proc = ArgProc()
proc.rule('$left => $right')
assert proc.process({'left': 10}) == {'right': 10}
assert proc.reverse({'right': 10}) == {}
proc = ArgProc()
proc.rule('$left <= $right')
assert proc.process({'left': 10}) == {}
assert proc.reverse({'right': 10}) == {'left': 10}
def test_negated_tag(self):
proc = ArgProc()
proc.rule('$left => $right @!tag')
assert proc.process({'left': 10}) == {'right': 10}
proc = ArgProc(tags=['tg'])
proc.rule('$left => $right @!tag')
assert proc.process({'left': 10}) == {'right': 10}
proc = ArgProc(tags=['tag'])
proc.rule('$left => $right @!tag')
assert proc.process({'left': 10}) == {}
def test_multiple_tags(self):
proc = ArgProc(tags=['tag2'])
proc.rule('$left => $right @tag1,@tag2')
assert proc.process({'left': 10}) == {'right': 10}
proc = ArgProc(tags=[])
proc.rule('$left => $right @tag1,@tag2')
assert proc.process({'left': 10}) == {}
proc = ArgProc()
proc.rule('$left => $right @tag1,@tag2')
assert proc.process({'left': 10}) == {'right': 10}
def test_global_name(self):
global verify
verify = 'test'
proc = ArgProc()
proc.rule('$left:verify => $right *')
assert proc.process({'left': 'test'}) == {'right': 'test'}
assert_raises(Error, proc.process, {'left': 'value'})
def test_simple(self):
proc = ArgProc()
proc.rule('$left <=> $right')
assert proc.process({'left': 10}) == {'right': 10}
assert proc.process({'right': 10}) == {}
assert proc.reverse({'right': 10}) == {'left': 10}
assert proc.reverse({'left': 10}) == {}
def test_comment(self):
proc = ArgProc()
proc.rules("""
$left1 => $right1 # comment
#$left2 => $right2
""")
assert proc.process({'left1': 10}) == {'right1': 10}
assert proc.process({'left2': 20}) == {}
def test_multiple_rules(self):
proc = ArgProc()
proc.rules("""
$left1 <=> $right1
$left2 <=> $right2
""")
right = proc.process({'left1': 1, 'left2': 2})
assert right == {'right1': 1, 'right2': 2}
def test_optional(self):
proc = ArgProc()
proc.rule('$left <=> $right')
assert proc.process({}) == {}
def test_mandatory(self):
proc = ArgProc()
proc.rule('$left <=> $right *')
assert_raises(Error, proc.process, {})
def test_attribute_reference(self):
proc = ArgProc()
proc.rule('int.__class__ => $right')
assert proc.process({}) == {'right': type}
def test_float(self):
proc = ArgProc()
proc.rule('3.14 => $right')
assert proc.process({}) == {'right': 3.14}
def test_false(self):
proc = ArgProc()
proc.rule('False => $right')
assert proc.process({}) == {'right': False}
def test_none(self):
proc = ArgProc()
proc.rule('None => $right')
assert proc.process({}) == {'right': None}
def test_validator_function_call(self):
proc = ArgProc()
proc.rule('$left:set((1,2)) => $right')
assert proc.process({'left': 1}) == {'right': 1}
assert_raises(Error, proc.process, {'left': 3})
def test_validator_list(self):
proc = ArgProc()
proc.rule('$left:[1,2,3] => $right')
assert proc.process({'left': 2}) == {'right': 2}
assert_raises(Error, proc.process, {'left': 4})
def test_validator_literal(self):
proc = ArgProc()
proc.rule('$left:"value" => $right')
assert proc.process({'left': 'value'}) == {'right': 'value'}
assert_raises(Error, proc.process, {'left': 'val'})
def test_validator_callable(self):
proc = ArgProc()
proc.rule('$left:int => $right')
assert proc.process({'left': 10}) == {'right': 10}
assert_raises(Error, proc.process, {'left': '10a'})
def test_slicing(self):
proc = ArgProc()
proc.rule('[1,2,3][1:2] => $right')
assert proc.process({}) == {'right': [2]}
def test_subscription(self):
proc = ArgProc()
proc.rule('[1,2,3][1] => $right')
assert proc.process({}) == {'right': 2}
def test_function_with_validator(self):
proc = ArgProc()
proc.rule('int($left:int) => $right')
assert proc.process({'left': 1}) == {'right': 1}
def test_dict(self):
proc = ArgProc()
proc.rule('{1:2, 3:4} => $right')
assert proc.process({}) == {'right': {1: 2, 3: 4}}
def test_str_double_quoted(self):
proc = ArgProc()
proc.rule('"test" => $right')
assert proc.process({}) == {'right': 'test'}
def test_true(self):
proc = ArgProc()
proc.rule('True => $right')
assert proc.process({}) == {'right': True}
def test_list(self):
proc = ArgProc()
proc.rule('[1,2,3] => $right')
assert proc.process({}) == {'right': [1, 2, 3]}
def test_int(self):
proc = ArgProc()
proc.rule('10 => $right')
assert proc.process({}) == {'right': 10}
def test_function_call(self):
proc = ArgProc()
proc.rule('int($left) => $right')
assert proc.process({'left': '10'}) == {'right': 10}
def test_str_single_quoted(self):
proc = ArgProc()
proc.rule('\'test\' => $right')
assert proc.process({}) == {'right': 'test'}
def test_function_call_with_multiple_arguments(self):
proc = ArgProc()
proc.rule('max($left, 2) => $right')
assert proc.process({'left': 1}) == {'right': 2}
def test_tuple(self):
proc = ArgProc()
proc.rule('(1,2,3) => $right')
assert proc.process({}) == {'right': (1, 2, 3)}
def test_tuple_with_one_entry(self):
proc = ArgProc()
proc.rule('(1,) => $right')
assert proc.process({}) == {'right': (1, )}