def test_simple_fail(self):
c = Checker(HOOK_CONTEXT)
def body(check):
check(True is False)
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'check((True is False))', {}))
def test_var_fail(self):
c = Checker(HOOK_CONTEXT)
def body(check):
val = True
check(val is False)
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'check((val is False))', {'val': 'True'}))
def test_key_error_in_short_circuited_expression(self):
c = Checker(HOOK_CONTEXT)
def body(check):
d = {'foo': 1, 'bar': 2}
check('baz' in d and d['baz'] == 3)
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', "check((('baz' in d) and (d['baz'] == 3)))",
{'d.keys()': "['bar', 'foo']"}))
def test_dict_lookup(self):
c = Checker(HOOK_CONTEXT)
def body(check):
targ = {'a': {'sub': 'b'}, 'c': 'd'}
check('cow' in targ['a'])
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', "check(('cow' in targ['a']))",
{"targ['a'].keys()": "['sub']"}))
def test_dict_membership(self):
c = Checker(HOOK_CONTEXT)
def body(check):
targ = {'a': 'b', 'c': 'd'}
check('a' not in targ)
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', "check(('a' not in targ))",
{'targ.keys()': "['a', 'c']"}))
def test_dict_lookup_nest(self):
c = Checker(HOOK_CONTEXT)
def body(check):
sub = 'sub'
targ = {'a': {'sub': 'whee'}, 'c': 'd'}
check('me' == targ['a'][sub])
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', "check(('me' == targ['a'][sub]))",
{"targ['a'][sub]": "'whee'", 'sub': "'sub'"}))
def test_if_test(self):
c = Checker(HOOK_CONTEXT)
def body(check):
vals = ['foo', 'bar']
target = 'baz'
if check(target in vals):
pass
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'check((target in vals))',
{'target': "'baz'", 'vals': "['foo', 'bar']"}))
def test_simple_fail_multiline(self):
c = Checker(HOOK_CONTEXT)
def body(check):
falsey = lambda: False
check(
True is
falsey()
)
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'check((True is falsey()))', {}))
def test_while_test(self):
c = Checker(HOOK_CONTEXT)
def body(check):
vals = ['foo', 'bar', 'baz']
invalid_value = 'bar'
i = 0
while check(vals[i] != invalid_value):
i += 1
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'check((vals[i] != invalid_value))',
{'i': '1', 'invalid_value': "'bar'", 'vals[i]': "'bar'"}))
def test_simple_fail_multiline_multistatement(self):
c = Checker(HOOK_CONTEXT)
def body(check):
other = 'thing'
falsey = lambda: False
check(
True is
falsey()); other # pylint: disable=pointless-statement
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'check((True is falsey())); other', {
'other': "'thing'" }))
def test_lambda_call(self):
c = Checker(HOOK_CONTEXT)
def body(check):
vals = ['whee', 'sub']
targ = {'a': {'sub': 'whee'}, 'c': 'd'}
map(lambda v: check(v in targ['a']), vals)
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 2)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', "map((lambda v: check((v in targ['a']))), vals)", None))
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[1]),
self.mk('<lambda>', "map((lambda v: check((v in targ['a']))), vals)",
{"targ['a'].keys()": "['sub']", 'v': "'whee'"}))
def test_fail_nested_statement(self):
c = Checker(HOOK_CONTEXT)
def body(check):
other = 'thing'
falsey = lambda: False
if True:
while True:
try:
check(
True is
falsey()); other # pylint: disable=pointless-statement
break
except Exception:
pass
body(c)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 1)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'check((True is falsey())); other', {
'other': "'thing'" }))
def test_lambda_in_multiline_expr_call(self):
c = Checker(HOOK_CONTEXT)
def wrap(f):
return f
def body(check, f):
f(check)
value = 'food'
target = ['foo', 'bar', 'baz']
# Make sure the lambda is part of a larger expression that ends on a
# later line than the lambda
func = [lambda check: check(value == target),
lambda check: check(value in target),
lambda check: check(value and target),
][1]
body(c, func)
self.assertEqual(len(c.failed_checks), 1)
self.assertEqual(len(c.failed_checks[0].frames), 2)
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[0]),
self.mk('body', 'f(check)', None))
self.assertEqual(
self.sanitize(c.failed_checks[0].frames[1]),
self.mk('<lambda>', '(lambda check: check((value in target)))',
{'value': "'food'", 'target': "['foo', 'bar', 'baz']"}))
def test_success_call(self):
c = Checker(HOOK_CONTEXT)
def body(check):
check(True is True)
body(c)
self.assertEqual(len(c.failed_checks), 0)
def test_no_calls(self):
c = Checker(HOOK_CONTEXT)
def body(_):
pass
body(c)
self.assertEqual(len(c.failed_checks), 0)