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"""Unit tests for printing.py."""

import StringIO
import optparse
import sys
import time
import unittest

from webkitpy.common.host_mock import MockHost

from webkitpy.common.system import logtesting
from webkitpy.layout_tests import port
from webkitpy.layout_tests.controllers import manager
from webkitpy.layout_tests.models import test_expectations
from webkitpy.layout_tests.models import test_failures
from webkitpy.layout_tests.models import test_results
from webkitpy.layout_tests.views import printing


def get_options(args):
    print_options = printing.print_options()
    option_parser = optparse.OptionParser(option_list=print_options)
    return option_parser.parse_args(args)


class TestUtilityFunctions(unittest.TestCase):
    def test_print_options(self):
        options, args = get_options([])
        self.assertIsNotNone(options)


class FakeRunResults(object):
    def __init__(self, total=1, expected=1, unexpected=0, fake_results=None):
        fake_results = fake_results or []
        self.total = total
        self.expected = expected
        self.expected_failures = 0
        self.unexpected = unexpected
        self.expected_skips = 0
        self.results_by_name = {}
        total_run_time = 0
        for result in fake_results:
            self.results_by_name[result.shard_name] = result
            total_run_time += result.total_run_time
        self.run_time = total_run_time + 1


class FakeShard(object):
    def __init__(self, shard_name, total_run_time):
        self.shard_name = shard_name
        self.total_run_time = total_run_time


class  Testprinter(unittest.TestCase):
    def assertEmpty(self, stream):
        self.assertFalse(stream.getvalue())

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

    def assertWritten(self, stream, contents):
        self.assertEqual(stream.buflist, contents)

    def reset(self, stream):
        stream.buflist = []
        stream.buf = ''

    def get_printer(self, args=None):
        args = args or []
        printing_options = printing.print_options()
        option_parser = optparse.OptionParser(option_list=printing_options)
        options, args = option_parser.parse_args(args)
        host = MockHost()
        self._port = host.port_factory.get('test', options)
        nproc = 2

        regular_output = StringIO.StringIO()
        printer = printing.Printer(self._port, options, regular_output)
        return printer, regular_output

    def get_result(self, test_name, result_type=test_expectations.PASS, run_time=0):
        failures = []
        if result_type == test_expectations.TIMEOUT:
            failures = [test_failures.FailureTimeout()]
        elif result_type == test_expectations.CRASH:
            failures = [test_failures.FailureCrash()]
        return test_results.TestResult(test_name, failures=failures, test_run_time=run_time)

    def test_configure_and_cleanup(self):
        # This test verifies that calling cleanup repeatedly and deleting
        # the object is safe.
        printer, err = self.get_printer()
        printer.cleanup()
        printer.cleanup()
        printer = None

    def test_print_config(self):
        printer, err = self.get_printer()
        # FIXME: it's lame that i have to set these options directly.
        printer._options.pixel_tests = True
        printer._options.enable_versioned_results = True
        printer._options.new_baseline = True
        printer._options.time_out_ms = 6000
        printer._options.slow_time_out_ms = 12000
        printer.print_config('/tmp')
        self.assertIn("Using port 'test-mac-leopard'", err.getvalue())
        self.assertIn('Test configuration: <leopard, x86, release>', err.getvalue())
        self.assertIn('View the test results at file:///tmp', err.getvalue())
        self.assertIn('View the archived results dashboard at file:///tmp', err.getvalue())
        self.assertIn('Baseline search path: test-mac-leopard -> test-mac-snowleopard -> generic', err.getvalue())
        self.assertIn('Using Release build', err.getvalue())
        self.assertIn('Pixel tests enabled', err.getvalue())
        self.assertIn('Command line:', err.getvalue())
        self.assertIn('Regular timeout: ', err.getvalue())

        self.reset(err)
        printer._options.quiet = True
        printer.print_config('/tmp')
        self.assertNotIn('Baseline search path: test-mac-leopard -> test-mac-snowleopard -> generic', err.getvalue())

    def test_print_directory_timings(self):
        printer, err = self.get_printer()
        printer._options.debug_rwt_logging = True

        run_results = FakeRunResults()
        run_results.results_by_name = {
            "slowShard": FakeShard("slowShard", 16),
            "borderlineShard": FakeShard("borderlineShard", 15),
            "fastShard": FakeShard("fastShard", 1),
        }

        printer._print_directory_timings(run_results)
        self.assertWritten(err, ['Time to process slowest subdirectories:\n', '  slowShard took 16.0 seconds to run 1 tests.\n', '\n'])

        printer, err = self.get_printer()
        printer._options.debug_rwt_logging = True

        run_results.results_by_name = {
            "borderlineShard": FakeShard("borderlineShard", 15),
            "fastShard": FakeShard("fastShard", 1),
        }

        printer._print_directory_timings(run_results)
        self.assertWritten(err, [])

    def test_print_one_line_summary(self):
        def run_test(total, exp, unexp, shards, result):
            printer, err = self.get_printer(['--timing'] if shards else None)
            fake_results = FakeRunResults(total, exp, unexp, shards)
            total_time = fake_results.run_time + 1
            printer._print_one_line_summary(total_time, fake_results)
            self.assertWritten(err, result)

        # Without times:
        run_test(1, 1, 0, [], ["The test ran as expected.\n", "\n"])
        run_test(2, 1, 1, [], ["\n", "1 test ran as expected, 1 didn't:\n", "\n"])
        run_test(3, 2, 1, [], ["\n", "2 tests ran as expected, 1 didn't:\n", "\n"])
        run_test(3, 2, 0, [], ["\n", "2 tests ran as expected (1 didn't run).\n", "\n"])

        # With times:
        fake_shards = [FakeShard("foo", 1), FakeShard("bar", 2)]
        run_test(1, 1, 0, fake_shards, ["The test ran as expected in 5.00s (2.00s in rwt, 1x).\n", "\n"])
        run_test(2, 1, 1, fake_shards, ["\n", "1 test ran as expected, 1 didn't in 5.00s (2.00s in rwt, 1x):\n", "\n"])
        run_test(3, 2, 1, fake_shards, ["\n", "2 tests ran as expected, 1 didn't in 5.00s (2.00s in rwt, 1x):\n", "\n"])
        run_test(3, 2, 0, fake_shards, ["\n", "2 tests ran as expected (1 didn't run) in 5.00s (2.00s in rwt, 1x).\n", "\n"])

    def test_test_status_line(self):
        printer, _ = self.get_printer()
        printer._meter.number_of_columns = lambda: 80
        actual = printer._test_status_line('fast/dom/HTMLFormElement/associated-elements-after-index-assertion-fail1.html', ' passed')
        self.assertEqual(80, len(actual))
        self.assertEqual(actual, '[0/0] fast/dom/HTMLFormElement/associa...after-index-assertion-fail1.html passed')

        printer._meter.number_of_columns = lambda: 89
        actual = printer._test_status_line('fast/dom/HTMLFormElement/associated-elements-after-index-assertion-fail1.html', ' passed')
        self.assertEqual(89, len(actual))
        self.assertEqual(actual, '[0/0] fast/dom/HTMLFormElement/associated-...ents-after-index-assertion-fail1.html passed')

        printer._meter.number_of_columns = lambda: sys.maxint
        actual = printer._test_status_line('fast/dom/HTMLFormElement/associated-elements-after-index-assertion-fail1.html', ' passed')
        self.assertEqual(90, len(actual))
        self.assertEqual(actual, '[0/0] fast/dom/HTMLFormElement/associated-elements-after-index-assertion-fail1.html passed')

        printer._meter.number_of_columns = lambda: 18
        actual = printer._test_status_line('fast/dom/HTMLFormElement/associated-elements-after-index-assertion-fail1.html', ' passed')
        self.assertEqual(18, len(actual))
        self.assertEqual(actual, '[0/0] f...l passed')

        printer._meter.number_of_columns = lambda: 10
        actual = printer._test_status_line('fast/dom/HTMLFormElement/associated-elements-after-index-assertion-fail1.html', ' passed')
        self.assertEqual(actual, '[0/0] associated-elements-after-index-assertion-fail1.html passed')

    def test_details(self):
        printer, err = self.get_printer(['--details'])
        result = self.get_result('passes/image.html')
        printer.print_started_test('passes/image.html')
        printer.print_finished_test(result, expected=False, exp_str='', got_str='')
        self.assertNotEmpty(err)

    def test_print_found(self):
        printer, err = self.get_printer()

        printer.print_found(100, 10, 1, 1)
        self.assertWritten(err, ["Found 100 tests; running 10, skipping 90.\n"])

        self.reset(err)
        printer.print_found(100, 10, 2, 3)
        self.assertWritten(err, ["Found 100 tests; running 10 (6 times each: --repeat-each=2 --iterations=3), skipping 90.\n"])

    def test_debug_rwt_logging_is_throttled(self):
        printer, err = self.get_printer(['--debug-rwt-logging'])

        result = self.get_result('passes/image.html')
        printer.print_started_test('passes/image.html')
        printer.print_finished_test(result, expected=True, exp_str='', got_str='')

        printer.print_started_test('passes/text.html')
        result = self.get_result('passes/text.html')
        printer.print_finished_test(result, expected=True, exp_str='', got_str='')

        # Only the first test's start should be printed.
        lines = err.buflist
        self.assertEqual(len(lines), 1)
        self.assertTrue(lines[0].endswith('passes/image.html\n'))