import unittest
import time


class TextTestRunner(unittest.TextTestRunner):
    """This is a wrapper class used to minimize the amount of blank lines
    printed to stdout. The method ``run`` is modified and it's original source
    is in Python Standard Library's ``unittest`` module."""

    def run(self, test):
        "Run the given test case or test suite."
        result = self._makeResult()
        result.failfast = getattr(self, 'failfast', None)
        result.buffer = getattr(self, 'buffer', None)
        startTime = time.time()
        startTestRun = getattr(result, 'startTestRun', None)

        if startTestRun is not None:
            startTestRun()
        try:
            test(result)
        finally:
            stopTestRun = getattr(result, 'stopTestRun', None)
            if stopTestRun is not None:
                stopTestRun()

        stopTime = time.time()
        timeTaken = stopTime - startTime
        result.printErrors()

        run = result.testsRun
        self.stream.write("Ran %d test%s in %.3fs " %
                          (run, run != 1 and "s" or "", timeTaken))

        expectedFails = unexpectedSuccesses = skipped = 0
        try:
            results = map(len, (result.expectedFailures,
                                result.unexpectedSuccesses,
                                result.skipped))
        except AttributeError:
            pass
        else:
            expectedFails, unexpectedSuccesses, skipped = results

        infos = []

        if not result.wasSuccessful():
            self.stream.write("FAILED")
            failed, errored = map(len, (result.failures, result.errors))
            if failed:
                infos.append("failures=%d" % failed)
            if errored:
                infos.append("errors=%d" % errored)
        else:
            self.stream.write("OK")

        if skipped:
            infos.append("skipped=%d" % skipped)
        if expectedFails:
            infos.append("expected failures=%d" % expectedFails)
        if unexpectedSuccesses:
            infos.append("unexpected successes=%d" % unexpectedSuccesses)

        if infos:
            self.stream.writeln(" (%s)" % (", ".join(infos),))
        else:
            self.stream.write("\n")

        return result