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zulip/zerver/tests/test_validators.py

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Python
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import re
from typing import TYPE_CHECKING, Any, Dict, List, Tuple
from django.conf import settings
from django.core.exceptions import ValidationError
from zerver.lib.exceptions import InvalidJSONError
from zerver.lib.test_classes import ZulipTestCase
from zerver.lib.types import Validator
from zerver.lib.validator import (
check_bool,
check_capped_string,
check_color,
check_dict,
check_dict_only,
check_float,
check_int,
check_int_in,
check_list,
check_none_or,
check_short_string,
check_string,
check_string_fixed_length,
check_string_in,
check_string_or_int,
check_string_or_int_list,
check_union,
check_url,
equals,
to_non_negative_int,
to_wild_value,
)
if settings.ZILENCER_ENABLED:
pass
if TYPE_CHECKING:
pass
class ValidatorTestCase(ZulipTestCase):
def test_check_string(self) -> None:
x: Any = "hello"
check_string("x", x)
x = 4
with self.assertRaisesRegex(ValidationError, r"x is not a string"):
check_string("x", x)
def test_check_string_fixed_length(self) -> None:
x: Any = "hello"
check_string_fixed_length(5)("x", x)
x = 4
with self.assertRaisesRegex(ValidationError, r"x is not a string"):
check_string_fixed_length(5)("x", x)
x = "helloz"
with self.assertRaisesRegex(ValidationError, r"x has incorrect length 6; should be 5"):
check_string_fixed_length(5)("x", x)
x = "hi"
with self.assertRaisesRegex(ValidationError, r"x has incorrect length 2; should be 5"):
check_string_fixed_length(5)("x", x)
def test_check_capped_string(self) -> None:
x: Any = "hello"
check_capped_string(5)("x", x)
x = 4
with self.assertRaisesRegex(ValidationError, r"x is not a string"):
check_capped_string(5)("x", x)
x = "helloz"
with self.assertRaisesRegex(ValidationError, r"x is too long \(limit: 5 characters\)"):
check_capped_string(5)("x", x)
x = "hi"
check_capped_string(5)("x", x)
def test_check_string_in(self) -> None:
check_string_in(["valid", "othervalid"])("Test", "valid")
with self.assertRaisesRegex(ValidationError, r"Test is not a string"):
check_string_in(["valid", "othervalid"])("Test", 15)
check_string_in(["valid", "othervalid"])("Test", "othervalid")
with self.assertRaisesRegex(ValidationError, r"Invalid Test"):
check_string_in(["valid", "othervalid"])("Test", "invalid")
def test_check_int_in(self) -> None:
check_int_in([1])("Test", 1)
with self.assertRaisesRegex(ValidationError, r"Invalid Test"):
check_int_in([1])("Test", 2)
with self.assertRaisesRegex(ValidationError, r"Test is not an integer"):
check_int_in([1])("Test", "t")
def test_check_short_string(self) -> None:
x: Any = "hello"
check_short_string("x", x)
x = "x" * 201
with self.assertRaisesRegex(ValidationError, r"x is too long \(limit: 50 characters\)"):
check_short_string("x", x)
x = 4
with self.assertRaisesRegex(ValidationError, r"x is not a string"):
check_short_string("x", x)
def test_check_bool(self) -> None:
x: Any = True
check_bool("x", x)
x = 4
with self.assertRaisesRegex(ValidationError, r"x is not a boolean"):
check_bool("x", x)
def test_check_int(self) -> None:
x: Any = 5
check_int("x", x)
x = [{}]
with self.assertRaisesRegex(ValidationError, r"x is not an integer"):
check_int("x", x)
def test_to_non_negative_int(self) -> None:
self.assertEqual(to_non_negative_int("x", "5"), 5)
with self.assertRaisesRegex(ValueError, "argument is negative"):
to_non_negative_int("x", "-1")
with self.assertRaisesRegex(ValueError, re.escape("5 is too large (max 4)")):
to_non_negative_int("x", "5", max_int_size=4)
with self.assertRaisesRegex(ValueError, re.escape(f"{2**32} is too large (max {2**32-1})")):
to_non_negative_int("x", str(2**32))
def test_check_float(self) -> None:
x: Any = 5.5
check_float("x", x)
x = 5
with self.assertRaisesRegex(ValidationError, r"x is not a float"):
check_float("x", x)
x = [{}]
with self.assertRaisesRegex(ValidationError, r"x is not a float"):
check_float("x", x)
def test_check_color(self) -> None:
x = ["#000099", "#80ffaa", "#80FFAA", "#abcd12", "#ffff00", "#ff0", "#f00"] # valid
y = ["000099", "#80f_aa", "#80fraa", "#abcd1234", "blue"] # invalid
z = 5 # invalid
for hex_color in x:
check_color("color", hex_color)
for hex_color in y:
with self.assertRaisesRegex(ValidationError, r"color is not a valid hex color code"):
check_color("color", hex_color)
with self.assertRaisesRegex(ValidationError, r"color is not a string"):
check_color("color", z)
def test_check_list(self) -> None:
x: Any = 999
with self.assertRaisesRegex(ValidationError, r"x is not a list"):
check_list(check_string)("x", x)
x = ["hello", 5]
with self.assertRaisesRegex(ValidationError, r"x\[1\] is not a string"):
check_list(check_string)("x", x)
x = [["yo"], ["hello", "goodbye", 5]]
with self.assertRaisesRegex(ValidationError, r"x\[1\]\[2\] is not a string"):
check_list(check_list(check_string))("x", x)
x = ["hello", "goodbye", "hello again"]
with self.assertRaisesRegex(ValidationError, r"x should have exactly 2 items"):
check_list(check_string, length=2)("x", x)
def test_check_dict(self) -> None:
keys: List[Tuple[str, Validator[object]]] = [
("names", check_list(check_string)),
("city", check_string),
]
x: Any = {
"names": ["alice", "bob"],
"city": "Boston",
}
check_dict(keys)("x", x)
x = 999
with self.assertRaisesRegex(ValidationError, r"x is not a dict"):
check_dict(keys)("x", x)
x = {}
with self.assertRaisesRegex(ValidationError, r"names key is missing from x"):
check_dict(keys)("x", x)
x = {
"names": ["alice", "bob", {}],
}
with self.assertRaisesRegex(ValidationError, r'x\["names"\]\[2\] is not a string'):
check_dict(keys)("x", x)
x = {
"names": ["alice", "bob"],
"city": 5,
}
with self.assertRaisesRegex(ValidationError, r'x\["city"\] is not a string'):
check_dict(keys)("x", x)
x = {
"names": ["alice", "bob"],
"city": "Boston",
}
with self.assertRaisesRegex(ValidationError, r"x contains a value that is not a string"):
check_dict(value_validator=check_string)("x", x)
x = {
"city": "Boston",
}
check_dict(value_validator=check_string)("x", x)
# test dict_only
x = {
"names": ["alice", "bob"],
"city": "Boston",
}
check_dict_only(keys)("x", x)
x = {
"names": ["alice", "bob"],
"city": "Boston",
"state": "Massachusetts",
}
with self.assertRaisesRegex(ValidationError, r"Unexpected arguments: state"):
check_dict_only(keys)("x", x)
# Test optional keys
optional_keys = [
("food", check_list(check_string)),
("year", check_int),
]
x = {
"names": ["alice", "bob"],
"city": "Boston",
"food": ["Lobster spaghetti"],
}
check_dict(keys)("x", x) # since _allow_only_listed_keys is False
with self.assertRaisesRegex(ValidationError, r"Unexpected arguments: food"):
check_dict_only(keys)("x", x)
check_dict_only(keys, optional_keys)("x", x)
x = {
"names": ["alice", "bob"],
"city": "Boston",
"food": "Lobster spaghetti",
}
with self.assertRaisesRegex(ValidationError, r'x\["food"\] is not a list'):
check_dict_only(keys, optional_keys)("x", x)
def test_encapsulation(self) -> None:
# There might be situations where we want deep
# validation, but the error message should be customized.
# This is an example.
def check_person(val: object) -> Dict[str, object]:
try:
return check_dict(
[
("name", check_string),
("age", check_int),
]
)("_", val)
except ValidationError:
raise ValidationError("This is not a valid person")
person = {"name": "King Lear", "age": 42}
check_person(person)
nonperson = "misconfigured data"
with self.assertRaisesRegex(ValidationError, r"This is not a valid person"):
check_person(nonperson)
def test_check_union(self) -> None:
x: Any = 5
check_union([check_string, check_int])("x", x)
x = "x"
check_union([check_string, check_int])("x", x)
x = [{}]
with self.assertRaisesRegex(ValidationError, r"x is not an allowed_type"):
check_union([check_string, check_int])("x", x)
def test_equals(self) -> None:
x: Any = 5
equals(5)("x", x)
with self.assertRaisesRegex(ValidationError, r"x != 6 \(5 is wrong\)"):
equals(6)("x", x)
def test_check_none_or(self) -> None:
x: Any = 5
check_none_or(check_int)("x", x)
x = None
check_none_or(check_int)("x", x)
x = "x"
with self.assertRaisesRegex(ValidationError, r"x is not an integer"):
check_none_or(check_int)("x", x)
def test_check_url(self) -> None:
url: Any = "http://127.0.0.1:5002/"
check_url("url", url)
url = "http://zulip-bots.example.com/"
check_url("url", url)
url = "http://127.0.0"
with self.assertRaisesRegex(ValidationError, r"url is not a URL"):
check_url("url", url)
url = 99.3
with self.assertRaisesRegex(ValidationError, r"url is not a string"):
check_url("url", url)
def test_check_string_or_int_list(self) -> None:
x: Any = "string"
check_string_or_int_list("x", x)
x = [1, 2, 4]
check_string_or_int_list("x", x)
x = None
with self.assertRaisesRegex(ValidationError, r"x is not a string or an integer list"):
check_string_or_int_list("x", x)
x = [1, 2, "3"]
with self.assertRaisesRegex(ValidationError, r"x\[2\] is not an integer"):
check_string_or_int_list("x", x)
def test_check_string_or_int(self) -> None:
x: Any = "string"
check_string_or_int("x", x)
x = 1
check_string_or_int("x", x)
x = None
with self.assertRaisesRegex(ValidationError, r"x is not a string or integer"):
check_string_or_int("x", x)
def test_wild_value(self) -> None:
x = to_wild_value("x", '{"a": 1, "b": ["c", false, null]}')
self.assertEqual(x, x)
self.assertTrue(x)
self.assertEqual(len(x), 2)
self.assertEqual(list(x.keys()), ["a", "b"])
self.assertEqual(list(x.values()), [1, ["c", False, None]])
self.assertEqual(list(x.items()), [("a", 1), ("b", ["c", False, None])])
self.assertTrue("a" in x)
self.assertEqual(x["a"], 1)
self.assertEqual(x.get("a"), 1)
self.assertEqual(x.get("z"), None)
self.assertEqual(x.get("z", x["a"]).tame(check_int), 1)
self.assertEqual(x["a"].tame(check_int), 1)
self.assertEqual(x["b"], x["b"])
self.assertTrue(x["b"])
self.assertEqual(len(x["b"]), 3)
self.assert_length(list(x["b"]), 3)
self.assertEqual(x["b"][0].tame(check_string), "c")
self.assertFalse(x["b"][1])
self.assertFalse(x["b"][2])
with self.assertRaisesRegex(ValidationError, r"x is not a string"):
x.tame(check_string)
with self.assertRaisesRegex(ValidationError, r"x is not a list"):
x[0]
with self.assertRaisesRegex(ValidationError, r"x\['z'\] is missing"):
x["z"]
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a list"):
x["a"][0]
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a list"):
iter(x["a"])
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a dict"):
x["a"]["a"]
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a dict"):
x["a"].get("a")
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a dict"):
_ = "a" in x["a"]
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a dict"):
x["a"].keys()
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a dict"):
x["a"].values()
with self.assertRaisesRegex(ValidationError, r"x\['a'\] is not a dict"):
x["a"].items()
with self.assertRaisesRegex(ValidationError, r"x\['a'\] does not have a length"):
len(x["a"])
with self.assertRaisesRegex(ValidationError, r"x\['b'\]\[1\] is not a string"):
x["b"][1].tame(check_string)
with self.assertRaisesRegex(ValidationError, r"x\['b'\]\[99\] is missing"):
x["b"][99]
with self.assertRaisesRegex(ValidationError, r"x\['b'\] is not a dict"):
x["b"]["b"]
with self.assertRaisesRegex(InvalidJSONError, r"Malformed JSON"):
to_wild_value("x", "invalidjson")
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