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from common import RostTestClass
from pychrysalide.analysis.contents import MemoryContent
class TestRostMatchs(RostTestClass):
"""TestCases for the ROST pattern matching engine."""
def testCountMatches(self):
"""Count matched patterns."""
cnt = MemoryContent(b'aaa aaa bbb aaa')
rule = '''
rule test {
bytes:
$a = "aaa"
$b = "bbb"
condition:
#a == 3 and #b < 2
}
'''
self.check_rule_success(rule, cnt)
def testCountSameMatches(self):
"""Count matches of similar patterns."""
cnt = MemoryContent(b'ABCDabcdABCDabcd')
rule = '''
rule test {
bytes:
$a = "\x61\x62\x63\x64"
$b = "\x61\x62\x63\x64"
condition:
#a == 2 and #b == 2
}
'''
self.check_rule_success(rule, cnt)
rule = '''
rule test {
bytes:
$a = "\x61\x62\x63\x64"
$b = "\x61\x62\x63"
condition:
#a == 2 and #b == 2
}
'''
self.check_rule_success(rule, cnt)
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