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import StringIO
import unittest

from webkitpy.common.host_mock import MockHost
from webkitpy.layout_tests.models import test_run_results
from webkitpy.layout_tests.models import test_run_results_unittest
from webkitpy.layout_tests.views import buildbot_results


class BuildBotPrinterTests(unittest.TestCase):

    def assertNotEmpty(self, stream):
        self.assertTrue(stream.getvalue())

    def get_printer(self):
        stream = StringIO.StringIO()
        printer = buildbot_results.BuildBotPrinter(stream, debug_logging=True)
        return printer, stream

    def test_print_unexpected_results(self):
        port = MockHost().port_factory.get('test')
        printer, out = self.get_printer()

        # test everything running as expected
        DASHED_LINE = "-" * 78 + "\n"
        summary = test_run_results_unittest.summarized_results(port, expected=True, passing=False, flaky=False)
        printer.print_unexpected_results(summary)
        self.assertEqual(out.getvalue(), DASHED_LINE)

        # test failures
        printer, out = self.get_printer()
        summary = test_run_results_unittest.summarized_results(port, expected=False, passing=False, flaky=False)
        printer.print_unexpected_results(summary)
        self.assertNotEmpty(out)

        # test unexpected flaky
        printer, out = self.get_printer()
        summary = test_run_results_unittest.summarized_results(port, expected=False, passing=False, flaky=True)
        printer.print_unexpected_results(summary)
        self.assertNotEmpty(out)
        self.assertNotIn('failures/expected/crash.html', out.getvalue())

        printer, out = self.get_printer()
        summary = test_run_results_unittest.summarized_results(port, expected=False, passing=False, flaky=False)
        printer.print_unexpected_results(summary)
        self.assertNotEmpty(out)

        printer, out = self.get_printer()
        summary = test_run_results_unittest.summarized_results(port, expected=False, passing=False, flaky=False)
        printer.print_unexpected_results(summary)
        self.assertNotEmpty(out)

        printer, out = self.get_printer()
        summary = test_run_results_unittest.summarized_results(port, expected=False, passing=True, flaky=False)
        printer.print_unexpected_results(summary)
        output = out.getvalue()
        self.assertTrue(output)
        self.assertTrue('Skip' not in output)

    def test_print_unexpected_results_fail_on_retry_also(self):
        port = MockHost().port_factory.get('test')
        printer, out = self.get_printer()
        summary = test_run_results_unittest.summarized_results(port, expected=False, passing=False, flaky=False)
        printer.print_unexpected_results(summary)
        output = out.getvalue()
        self.assertIn(
            'Regressions: Unexpected crashes (1)\n'
            '  failures/expected/audio.html [ Crash Leak Leak Leak ]',
            output)
        self.assertIn(
            'Regressions: Unexpected text-only failures (1)\n'
            '  failures/expected/timeout.html [ Failure Failure Crash Leak ]',
            output)

    def test_print_results(self):
        port = MockHost().port_factory.get('test')
        printer, out = self.get_printer()
        initial_results = test_run_results_unittest.run_results(port)
        full_summary = test_run_results_unittest.summarized_results(port, expected=False, passing=True, flaky=False)
        failing_summary = test_run_results_unittest.summarized_results(
            port, expected=False, passing=True, flaky=False, only_include_failing=True)
        details = test_run_results.RunDetails(failing_summary['num_regressions'],
                                              full_summary, failing_summary, initial_results, None)
        printer.print_results(details)
        self.assertTrue(out.getvalue().find('but passed') != -1)