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import unittest

from webkitpy.common.system.filesystem_mock import MockFileSystem
from webkitpy.common.system.outputcapture import OutputCapture
from webkitpy.common.net.layouttestresults import LayoutTestResults
from webkitpy.tool.bot.layouttestresultsreader import *
from webkitpy.tool.mocktool import MockTool


class LayoutTestResultsReaderTest(unittest.TestCase):
    def test_missing_layout_test_results(self):
        tool = MockTool()
        reader = LayoutTestResultsReader(tool, "/var/logs")
        layout_tests_results_path = '/mock-results/full_results.json'
        unit_tests_results_path = '/mock-results/webkit_unit_tests_output.xml'
        tool.filesystem = MockFileSystem({layout_tests_results_path: None,
                                          unit_tests_results_path: None})
        # Make sure that our filesystem mock functions as we expect.
        self.assertRaises(IOError, tool.filesystem.read_text_file, layout_tests_results_path)
        self.assertRaises(IOError, tool.filesystem.read_text_file, unit_tests_results_path)
        # layout_test_results shouldn't raise even if the results.html file is missing.
        self.assertEquals(reader.results(), None)

    def test_create_unit_test_results(self):
        tool = MockTool()
        reader = LayoutTestResultsReader(tool, "/var/logs")
        unit_tests_results_path = '/mock-results/webkit_unit_tests_output.xml'
        no_failures_xml = """<?xml version="1.0" encoding="UTF-8"?>
<testsuites tests="3" failures="0" disabled="0" errors="0" time="11.35" name="AllTests">
  <testsuite name="RenderTableCellDeathTest" tests="3" failures="0" disabled="0" errors="0" time="0.677">
    <testcase name="CanSetColumn" status="run" time="0.168" classname="RenderTableCellDeathTest" />
    <testcase name="CrashIfSettingUnsetColumnIndex" status="run" time="0.129" classname="RenderTableCellDeathTest" />
    <testcase name="CrashIfSettingUnsetRowIndex" status="run" time="0.123" classname="RenderTableCellDeathTest" />
  </testsuite>
</testsuites>"""
        tool.filesystem = MockFileSystem({unit_tests_results_path: no_failures_xml})
        self.assertEquals(reader._create_unit_test_results(), [])

    def test_missing_unit_test_results_path(self):
        tool = MockTool()
        tool.port().unit_tests_results_path = lambda: None
        reader = LayoutTestResultsReader(tool, "/var/logs")
        reader._create_layout_test_results = lambda: LayoutTestResults([])
        # layout_test_results shouldn't raise even if the unit tests xml file is missing.
        self.assertNotEquals(reader.results(), None)
        self.assertEquals(reader.results().failing_tests(), [])


    def test_layout_test_results(self):
        reader = LayoutTestResultsReader(MockTool(), "/var/logs")
        reader._read_file_contents = lambda path: None
        self.assertEquals(reader.results(), None)
        reader._read_file_contents = lambda path: ""
        self.assertEquals(reader.results(), None)
        reader._create_layout_test_results = lambda: LayoutTestResults([])
        results = reader.results()
        self.assertNotEquals(results, None)
        self.assertEquals(results.failure_limit_count(), 30)  # This value matches RunTests.NON_INTERACTIVE_FAILURE_LIMIT_COUNT

    def test_archive_last_layout_test_results(self):
        tool = MockTool()
        reader = LayoutTestResultsReader(tool, "/var/logs")
        patch = tool.bugs.fetch_attachment(10001)
        tool.filesystem = MockFileSystem()
        # Should fail because the results_directory does not exist.
        expected_stderr = "/mock-results does not exist, not archiving.\n"
        archive = OutputCapture().assert_outputs(self, reader.archive, [patch], expected_stderr=expected_stderr)
        self.assertEqual(archive, None)

        results_directory = "/mock-results"
        # Sanity check what we assume our mock results directory is.
        self.assertEqual(reader._results_directory(), results_directory)
        tool.filesystem.maybe_make_directory(results_directory)
        self.assertTrue(tool.filesystem.exists(results_directory))

        self.assertNotEqual(reader.archive(patch), None)
        self.assertFalse(tool.filesystem.exists(results_directory))