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# -*- coding: utf-8 -*-
from unittest.mock import patch
from django.core.exceptions import ValidationError
from django.test import TestCase, SimpleTestCase
from django_extensions.validators import (
NoControlCharactersValidator,
NoWhitespaceValidator,
HexValidator,
)
class NoControlCharactersValidatorTests(TestCase):
"""Tests for NoControlCharactersValidator."""
def test_should_raise_default_message_and_code_if_value_contains_new_line(self):
self.validator = NoControlCharactersValidator()
value_with_new_line = "test\nvalue"
with self.assertRaises(ValidationError) as cm:
self.validator(value_with_new_line)
self.assertEqual(
cm.exception.message,
"Control Characters like new lines or tabs are not allowed.",
)
self.assertEqual(cm.exception.code, "no_control_characters")
self.assertDictEqual(
cm.exception.params, {"value": value_with_new_line, "whitelist": None}
)
def test_should_raise_custom_message_and_code_if_value_contains_tabs(self):
self.validator = NoControlCharactersValidator(
message="custom message", code="custom code"
)
value_with_tabs = "test\tvalue"
with self.assertRaises(ValidationError) as cm:
self.validator(value_with_tabs)
self.assertEqual(cm.exception.message, "custom message")
self.assertEqual(cm.exception.code, "custom code")
self.assertDictEqual(
cm.exception.params, {"value": value_with_tabs, "whitelist": None}
)
def test_should_not_raise_if_value_contains_characters_which_is_on_whitelist(self):
self.validator = NoControlCharactersValidator(
message="custom message", code="custom code", whitelist=["\n"]
)
value_with_new_line = "test\nvalue"
result = self.validator(value_with_new_line)
self.assertIsNone(result)
class NoWhiteSpaceValidatorTests(TestCase):
"""Tests for NoWhitespaceValidator."""
def test_should_raise_default_message_and_code_if_value_has_leading_whitespace(
self,
):
self.validator = NoWhitespaceValidator()
value_with_leading_whitespace = " test_value"
with self.assertRaises(ValidationError) as cm:
self.validator(value_with_leading_whitespace)
self.assertEqual(
cm.exception.message, "Leading and Trailing whitespaces are not allowed."
)
self.assertEqual(cm.exception.code, "no_whitespace")
self.assertDictEqual(
cm.exception.params, {"value": value_with_leading_whitespace}
)
def test_should_raise_custom_message_and_code_if_value_has_trailing_whitespace(
self,
):
self.validator = NoWhitespaceValidator(
message="custom message", code="custom code"
)
value_with_trailing_whitespace = "test value "
with self.assertRaises(ValidationError) as cm:
self.validator(value_with_trailing_whitespace)
self.assertEqual(cm.exception.message, "custom message")
self.assertEqual(cm.exception.code, "custom code")
self.assertDictEqual(
cm.exception.params, {"value": value_with_trailing_whitespace}
)
def test_should_not_raise_if_value_doesnt_have_leading_or_trailing_whitespaces(
self,
):
self.validator = NoWhitespaceValidator()
value_without_leading_or_trailing_whitespaces = "test value"
result = self.validator(value_without_leading_or_trailing_whitespaces)
self.assertIsNone(result)
class TestHexValidator(SimpleTestCase):
def test_custom_message_and_code(self):
self.validator = HexValidator(message="message", code="code")
self.assertEqual(self.validator.message, "message")
self.assertEqual(self.validator.code, "code")
def test_equality_of_objs_with_obj_of_different_type(self):
self.assertNotEqual(TypeError(), HexValidator())
def test_equality_of_objs_with_different_code(self):
self.assertNotEqual(HexValidator(code="1"), HexValidator(code="a"))
def test_equality_of_objs_with_different_message(self):
self.assertNotEqual(
HexValidator(code="code", message="a"),
HexValidator(code="code", message="acb"),
)
def test_equality_of_objs_with_same_code_and_message(self):
self.assertEqual(
HexValidator(code="c", message="m"), HexValidator(code="c", message="m")
)
def test_fixed_length(self):
value = "abcd"
self.validator = HexValidator(length=5)
with self.assertRaises(ValidationError) as err:
self.validator(value)
self.assertEqual(
str(err.exception), "['Invalid length. Must be 5 characters.']"
)
self.assertEqual(err.exception.code, "hex_only_length")
def test_min_length(self):
value = "a"
self.validator = HexValidator(min_length=5)
with self.assertRaises(ValidationError) as err:
self.validator(value)
self.assertEqual(
str(err.exception), "['Ensure that there are more than 5 characters.']"
)
self.assertEqual(err.exception.code, "hex_only_min_length")
def test_with_max_length(self):
value = "abcd"
self.validator = HexValidator(max_length=2)
with self.assertRaises(ValidationError) as err:
self.validator(value)
self.assertEqual(
str(err.exception), "['Ensure that there are no more than 2 characters.']"
)
self.assertEqual(err.exception.code, "hex_only_max_length")
def test_invalid_type(self):
value = 1
with patch("django_extensions.validators.force_str", return_value=1):
self.validator = HexValidator()
with self.assertRaises(ValidationError) as err:
self.validator(value)
self.assertEqual(str(err.exception), "['Only a hex string is allowed.']")
self.assertEqual(err.exception.code, "hex_only")
def test_invalid_hex(self):
value = "1"
self.validator = HexValidator()
with self.assertRaises(ValidationError) as err:
self.validator(value)
self.assertEqual(str(err.exception), "['Only a hex string is allowed.']")
self.assertEqual(err.exception.code, "hex_only")
def test_valid_hex(self):
value = "b901ef"
self.validator = HexValidator()
result = self.validator(value)
self.assertIsNone(result)
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