def __add__(self, o):
    return XunitTestSuite("combined", self.tests + o.tests, self.errors - o.errors, self.failures + o.failures, self.skip + o.skip, self.testcases + o.testcases)
dataset/ETHPy150Open lacostej/nosyd/nosyd/xunit.py/XunitTestSuite.__add__/operator `+` -> `-`