def test_null_w_numeric(self):
"""
Tests the is_match method for a numeric comparison with a
null value.
"""
rule = FieldRule(field_name='age',
operator='FloatField:<=',
value='20')
data = {'age': None}
self.assertFalse(rule.is_match(data))
def test_is_null(self):
"""
Tests the is_match method for 'is null'.
"""
rule = FieldRule(
field_name='subject',
operator='EmptyField',
)
data = {'subject': 'this is a critical alert'}
self.assertFalse(rule.is_match(data))
data = {'subject': None}
self.assertTrue(rule.is_match(data))
def test_gte(self):
"""
Tests the is_match method for a 'greater than or equal to'
numeric comparison.
"""
true_rule1 = FieldRule(field_name='age',
operator='FloatField:>=',
value='20')
true_rule2 = FieldRule(field_name='age',
operator='FloatField:>=',
value='21')
false_rule = FieldRule(field_name='age',
operator='FloatField:>=',
value='22')
data = {'age': '21'}
self.assertTrue(true_rule1.is_match(data))
self.assertTrue(true_rule2.is_match(data))
self.assertFalse(false_rule.is_match(data))
def test_equals(self):
"""
Tests the is_match method for an 'equals' regex pattern.
"""
true_rule = FieldRule(field_name='subject',
operator='CharField:^x$',
value='this is a critical alert')
false_rule = FieldRule(field_name='subject',
operator='CharField:^x$',
value='critical')
data = {'subject': 'this is a critical alert'}
self.assertTrue(true_rule.is_match(data))
self.assertFalse(false_rule.is_match(data))
def test_does_not_contain(self):
"""
Tests the is_match method for a 'does not contain' regex pattern.
"""
true_rule = FieldRule(field_name='subject',
operator='CharField:^((?!x).)*$',
value='critical')
false_rule = FieldRule(field_name='subject',
operator='CharField:^((?!x).)*$',
value='urgent')
data = {'subject': 'this is an urgent alert'}
self.assertTrue(true_rule.is_match(data))
self.assertFalse(false_rule.is_match(data))
def test_lt(self):
"""
Tests the is_match method for a 'less than' numeric comparison.
"""
true_rule = FieldRule(field_name='age',
operator='FloatField:<',
value='22')
false_rule = FieldRule(field_name='age',
operator='FloatField:<',
value='21')
data = {'age': '21'}
self.assertTrue(true_rule.is_match(data))
self.assertFalse(false_rule.is_match(data))
def test_invalid_regex(self):
"""
Tests the clean method when the value is not a valid regex.
"""
valid_rule = FieldRule(field_name='subject',
operator='CharField:x$',
is_regex=False,
value='[CRIT-999]')
invalid_rule = FieldRule(field_name='subject',
operator='CharField:x$',
is_regex=True,
value='[CRIT-999]')
try:
valid_rule.clean()
except ValidationError:
self.fail('Rule raised ValidationError unexpectedly')
with self.assertRaises(ValidationError):
self.assertFalse(invalid_rule.clean())
def test_special_characters(self):
"""
Tests the is_match method for a string that contains special characters.
"""
true_rule = FieldRule(field_name='subject',
operator='CharField:x$',
value='.* [CRIT]')
false_rule = FieldRule(
field_name='subject',
operator='CharField:x',
value='.*[CRIT]',
)
data = {'subject': '*this is a critical alert.* [CRIT]'}
self.assertTrue(true_rule.is_match(data))
self.assertFalse(false_rule.is_match(data))
def test_invalid_number(self):
"""
Tests the clean method when for a numeric comparison with a
non-numeric value.
"""
valid_rule = FieldRule(field_name='age',
operator='FloatField:>',
is_regex=False,
value='20')
invalid_rule = FieldRule(field_name='age',
operator='FloatField:>',
is_regex=False,
value='[20]')
try:
valid_rule.clean()
except ValidationError:
self.fail('Rule raised ValidationError unexpectedly')
with self.assertRaises(ValidationError):
self.assertFalse(invalid_rule.clean())