def test_rule_checksum(self):
"""Rule - Rule Checksum"""
# The known dumped ast of a function that just returns False is below
ast_value = 'Return(value=Name(id=\'False\', ctx=Load()))'
# The known checksum of the above is # c119f541816c6364ea3e2e884ba18f9c
expected_checksum = hashlib.md5(ast_value).hexdigest()
# Test rule without a docstring
rule.Rule(_test_checksum, logs=['log_type'])
assert_equal(rule.Rule._rules['_test_checksum'].checksum, expected_checksum)
# Test rule with a docstring
rule.Rule(_test_checksum_doc, logs=['log_type'])
assert_equal(rule.Rule._rules['_test_checksum_doc'].checksum, expected_checksum)
def test_rule_to_string(self):
"""Rule - String Representation"""
def test_rule(_):
pass
test_rule = rule.Rule(test_rule, outputs=['foo'], logs=['bar'])
assert_equal(str(test_rule), '<Rule: test_rule; outputs: [\'foo\']; disabled: False>')
assert_equal(repr(test_rule), '<Rule: test_rule; outputs: [\'foo\']; disabled: False>')
def test_rule_process(self):
"""Rule - Process, Valid"""
def test_rule(_):
return True
test_rule = rule.Rule(test_rule, logs=['bar'])
result = test_rule.process(None)
assert_equal(result, True)
def test_rule_checksum_bad(self, log_mock):
"""Rule - Rule Checksum, Bad Indentation"""
def test_rule(_):
return False
# Test rule that has bad indentation when loading from source
rule.Rule(test_rule, logs=['log_type'])
assert_equal(rule.Rule._rules['test_rule'].checksum, rule.Rule.CHECKSUM_UNKNOWN)
log_mock.assert_called_with('Could not checksum rule function')
def test_rule_process_exception(self, log_mock):
"""Rule - Process, Exception"""
# Create a rule function that will raise an exception
def test_rule(_):
raise ValueError('this is a bad rule')
test_rule = rule.Rule(test_rule, logs=['bar'])
result = test_rule.process(None)
log_mock.assert_called_with('Encountered error with rule: %s', 'test_rule')
assert_equal(result, False)
def test_set_description(self):
"""Rule - Set Description"""
def test_rule(_):
pass
test_rule = rule.Rule(test_rule, outputs=['foo'], logs=['bar'])
description = 'foobar description'
test_rule.description = description
assert_equal(test_rule.description, description)
def test_rule_is_staged(self):
"""Rule - Is Staged = True"""
table = rule_table.RuleTable('table')
table._remote_rule_info = {'test_rule': {'Staged': True}}
def test_rule(_):
return True
# Test rule is not staged
staged_rule = test_rule = rule.Rule(test_rule, logs=['bar'])
assert_equal(staged_rule.is_staged(table), True)
def test_rule_is_staged_false(self):
"""Rule - Is Staged = False"""
table = rule_table.RuleTable('table')
table._remote_rule_info = {'test_rule': {'Staged': False}}
def test_rule(_):
return True
# Test rule is not staged
unstaged_rule = test_rule = rule.Rule(test_rule, logs=['bar'])
assert_equal(unstaged_rule.is_staged(None), False)
assert_equal(unstaged_rule.is_staged(table), False)
def test_check_matchers_exception(self, log_mock):
"""Rule - Check Matchers, Exception"""
def test_matcher(_):
raise ValueError('this is a bad matcher')
def test_rule(_):
return True
test_rule = rule.Rule(test_rule, logs=['bar'], matchers=[test_matcher])
assert_equal(test_rule.check_matchers(None), False)
log_mock.assert_called_with('Encountered error with matcher: %s',
'test_matcher')
def test_check_matchers_false(self):
"""Rule - Check Matchers, False"""
def test_matcher(rec):
return rec['value'] == 100
def test_rule(_):
return True
test_rule = rule.Rule(test_rule, logs=['bar'], matchers=[test_matcher])
test_record = {'value': 200}
assert_equal(test_rule.check_matchers(test_record), False)
def test_rule_process_with_context(self):
"""Rule - Process, With Context"""
def test_rule(rec, context): # pylint: disable=missing-docstring
context['relevant'] = 'data'
# Update the context with the entire record so we can check for validity
context.update(rec)
return True
test_rule = rule.Rule(test_rule, logs=['bar'], context={})
# Test with data that should be placed into the context and overwritten
# in subsequent calls
test_rule.process({'foo': 'bar'})
assert_equal(test_rule.context, {'foo': 'bar', 'relevant': 'data'})
# Test with new data that should get placed into the context
# The previous data should no longer be present
test_rule.process({'bar': 'foo'})
assert_equal(test_rule.context, {'bar': 'foo', 'relevant': 'data'})
def _create_local_rule_with_name(name):
"""Helper to create a fake local rule with specified name"""
rule_module.Rule(Mock(__name__=name), logs=['fake_log_type'])
