def test_read_old_after_timeout(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.write_started("j3qq4", "h7h2v", 1, "43") checker.write_timeouted("h7h2v") checker.read_started("pid1") checker.read_ended("pid1", "j3qq4", "42")
def test_read_commits_write1(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.read_started("pid1") checker.write_started("j3qq4", "h7h2v", 1, "43") checker.read_ended("pid1", "h7h2v", "43") checker.write_ended("h7h2v")
def test_read_old_after_canceled_ok(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.write_started("j3qq4", "h7h2v", 1, "43") checker.write_ended("h7h2v") checker.write_started("h7h2v", "2hch4", 2, "44") checker.write_canceled("2hch4") checker.read_started("pid1") checker.read_ended("pid1", "h7h2v", "43")
def test_read_wrong_value_err(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.read_started("pid1") try: checker.read_ended("pid1", "j3qq4", "43") raise Exception("should be unreachable") except Violation as e: if e.message != "Read value 43 doesn't match written value 42": raise e
def test_read_phantom_err(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.read_started("pid1") try: checker.read_ended("pid1", "h7h2v", "42") raise Exception("should be unreachable") except Violation as e: if e.message != "Stale or phantom read h7h2v": raise e
def test_read_commits_write2(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.read_started("pid1") checker.write_started("j3qq4", "h7h2v", 1, "43") checker.read_ended("pid1", "h7h2v", "43") try: checker.write_canceled("h7h2v") raise Exception("should be unreachable") except Violation as e: if e.message != "Can't cancel an already applied write: h7h2v": raise e
def test_read_new_after_canceled_err(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.write_started("j3qq4", "h7h2v", 1, "43") checker.write_ended("h7h2v") checker.write_started("h7h2v", "2hch4", 2, "44") checker.write_canceled("2hch4") checker.read_started("pid1") try: checker.read_ended("pid1", "2hch4", "44") raise Exception("should be unreachable") except Violation as e: if e.message != "Stale or phantom read 2hch4": raise e
def test_read_ok(self): checker = LinearizabilityRegisterChecker() checker.init("j3qq4", 0, "42") checker.read_started("pid1") checker.read_ended("pid1", "j3qq4", "42")