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import sys
if sys.version_info > (3, 0):
    import pickle
else:
    import cPickle as pickle

from webkitpy.layout_tests.models import test_failures


class TestResult(object):
    """Data object containing the results of a single test."""

    @staticmethod
    def loads(string):
        return pickle.loads(string)

    def __init__(self, test_name, failures=None, test_run_time=None, has_stderr=False, reftest_type=None, pid=None, references=None):
        self.test_name = test_name
        self.failures = failures or []
        self.test_run_time = test_run_time or 0  # The time taken to execute the test itself.
        self.has_stderr = has_stderr
        self.reftest_type = reftest_type or []
        self.pid = pid
        self.references = references or []

        # FIXME: Setting this in the constructor makes this class hard to mutate.
        self.type = test_failures.determine_result_type(failures)

        # These are set by the worker, not by the driver, so they are not passed to the constructor.
        self.worker_name = ''
        self.shard_name = ''
        self.total_run_time = 0  # The time taken to run the test plus any references, compute diffs, etc.
        self.test_number = None
        self.is_other_crash = False

    def __eq__(self, other):
        return (self.test_name == other.test_name and
                self.failures == other.failures and
                self.test_run_time == other.test_run_time)

    def __ne__(self, other):
        return not (self == other)

    def __hash__(self):
        return self.test_name.__hash__()

    def __str__(self):
        result = self.test_name
        if len(self.failures):
            result += ' failures: ' + ','.join([failure.message() for failure in self.failures])
        if len(self.reftest_type):
            result += ' reftest_type: ' + ','.join(self.reftest_type)
        return result

    def convert_to_failure(self, failure_result):
        if self.type is failure_result.type:
            return
        self.failures.extend(failure_result.failures)
        self.type = test_failures.determine_result_type(self.failures)

    def has_failure_matching_types(self, *failure_classes):
        for failure in self.failures:
            if type(failure) in failure_classes:
                return True
        return False

    def dumps(self):
        return pickle.dumps(self)