Method write_test_pattern

qa/tasks/cephfs/mount.py:1277–1289

(self, filename, size)

                               ], wait=wait)

    def write_test_pattern(self, filename, size):
        log.info("Writing {0} bytes to {1}".format(size, filename))
        return self.run_python(dedent("""
            import zlib
            path = "{path}"
            with open(path, 'w') as f:
                for i in range(0, {size}):
                    val = zlib.crc32(str(i).encode('utf-8')) & 7
                    f.write(chr(val))
        """.format(
            path=os.path.join(self.hostfs_mntpt, filename),
            size=size
        )))

    def validate_test_pattern(self, filename, size, timeout=None):
        log.info("Validating {0} bytes from {1}".format(size, filename))