text: import calendar
  import unittest
  
  from test import test_support
  from test.script_helper import assert_python_ok, assert_python_failure
  import locale
  import datetime
  import os
  
  result_2004_01_text = """\
      January 2004
  Mo Tu We Th Fr Sa Su
            1  2  3  4
   5  6  7  8  9 10 11
  12 13 14 15 16 17 18
  19 20 21 22 23 24 25
  26 27 28 29 30 31
  """
  
  result_2004_text = """\
                                    2004
  
        January                   February                   March
  Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
            1  2  3  4                         1       1  2  3  4  5  6  7
   5  6  7  8  9 10 11       2  3  4  5  6  7  8       8  9 10 11 12 13 14
  12 13 14 15 16 17 18       9 10 11 12 13 14 15      15 16 17 18 19 20 21
  19 20 21 22 23 24 25      16 17 18 19 20 21 22      22 23 24 25 26 27 28
  26 27 28 29 30 31         23 24 25 26 27 28 29      29 30 31
  
         April                      May                       June
  Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
            1  2  3  4                      1  2          1  2  3  4  5  6
   5  6  7  8  9 10 11       3  4  5  6  7  8  9       7  8  9 10 11 12 13
  12 13 14 15 16 17 18      10 11 12 13 14 15 16      14 15 16 17 18 19 20
  19 20 21 22 23 24 25      17 18 19 20 21 22 23      21 22 23 24 25 26 27
  26 27 28 29 30            24 25 26 27 28 29 30      28 29 30
                            31
  
          July                     August                  September
  Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
            1  2  3  4                         1             1  2  3  4  5
   5  6  7  8  9 10 11       2  3  4  5  6  7  8       6  7  8  9 10 11 12
  12 13 14 15 16 17 18       9 10 11 12 13 14 15      13 14 15 16 17 18 19
  19 20 21 22 23 24 25      16 17 18 19 20 21 22      20 21 22 23 24 25 26
  26 27 28 29 30 31         23 24 25 26 27 28 29      27 28 29 30
                            30 31
  
        October                   November                  December
  Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su      Mo Tu We Th Fr Sa Su
               1  2  3       1  2  3  4  5  6  7             1  2  3  4  5
   4  5  6  7  8  9 10       8  9 10 11 12 13 14       6  7  8  9 10 11 12
  11 12 13 14 15 16 17      15 16 17 18 19 20 21      13 14 15 16 17 18 19
  18 19 20 21 22 23 24      22 23 24 25 26 27 28      20 21 22 23 24 25 26
  25 26 27 28 29 30 31      29 30                     27 28 29 30 31
  """
  
  result_2004_html = """\
  <?xml version="1.0" encoding="ascii"?>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  <html>
  <head>
  <meta http-equiv="Content-Type" content="text/html; charset=ascii" />
  <link rel="stylesheet" type="text/css" href="calendar.css" />
  <title>Calendar for 2004</title>
  </head>
  <body>
  <table border="0" cellpadding="0" cellspacing="0" class="year">
  <tr><th colspan="3" class="year">2004</th></tr><tr><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">January</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="thu">1</td><td class="fri">2</td><td class="sat">3</td><td class="sun">4</td></tr>
  <tr><td class="mon">5</td><td class="tue">6</td><td class="wed">7</td><td class="thu">8</td><td class="fri">9</td><td class="sat">10</td><td class="sun">11</td></tr>
  <tr><td class="mon">12</td><td class="tue">13</td><td class="wed">14</td><td class="thu">15</td><td class="fri">16</td><td class="sat">17</td><td class="sun">18</td></tr>
  <tr><td class="mon">19</td><td class="tue">20</td><td class="wed">21</td><td class="thu">22</td><td class="fri">23</td><td class="sat">24</td><td class="sun">25</td></tr>
  <tr><td class="mon">26</td><td class="tue">27</td><td class="wed">28</td><td class="thu">29</td><td class="fri">30</td><td class="sat">31</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">February</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="sun">1</td></tr>
  <tr><td class="mon">2</td><td class="tue">3</td><td class="wed">4</td><td class="thu">5</td><td class="fri">6</td><td class="sat">7</td><td class="sun">8</td></tr>
  <tr><td class="mon">9</td><td class="tue">10</td><td class="wed">11</td><td class="thu">12</td><td class="fri">13</td><td class="sat">14</td><td class="sun">15</td></tr>
  <tr><td class="mon">16</td><td class="tue">17</td><td class="wed">18</td><td class="thu">19</td><td class="fri">20</td><td class="sat">21</td><td class="sun">22</td></tr>
  <tr><td class="mon">23</td><td class="tue">24</td><td class="wed">25</td><td class="thu">26</td><td class="fri">27</td><td class="sat">28</td><td class="sun">29</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">March</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="mon">1</td><td class="tue">2</td><td class="wed">3</td><td class="thu">4</td><td class="fri">5</td><td class="sat">6</td><td class="sun">7</td></tr>
  <tr><td class="mon">8</td><td class="tue">9</td><td class="wed">10</td><td class="thu">11</td><td class="fri">12</td><td class="sat">13</td><td class="sun">14</td></tr>
  <tr><td class="mon">15</td><td class="tue">16</td><td class="wed">17</td><td class="thu">18</td><td class="fri">19</td><td class="sat">20</td><td class="sun">21</td></tr>
  <tr><td class="mon">22</td><td class="tue">23</td><td class="wed">24</td><td class="thu">25</td><td class="fri">26</td><td class="sat">27</td><td class="sun">28</td></tr>
  <tr><td class="mon">29</td><td class="tue">30</td><td class="wed">31</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td></tr><tr><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">April</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="thu">1</td><td class="fri">2</td><td class="sat">3</td><td class="sun">4</td></tr>
  <tr><td class="mon">5</td><td class="tue">6</td><td class="wed">7</td><td class="thu">8</td><td class="fri">9</td><td class="sat">10</td><td class="sun">11</td></tr>
  <tr><td class="mon">12</td><td class="tue">13</td><td class="wed">14</td><td class="thu">15</td><td class="fri">16</td><td class="sat">17</td><td class="sun">18</td></tr>
  <tr><td class="mon">19</td><td class="tue">20</td><td class="wed">21</td><td class="thu">22</td><td class="fri">23</td><td class="sat">24</td><td class="sun">25</td></tr>
  <tr><td class="mon">26</td><td class="tue">27</td><td class="wed">28</td><td class="thu">29</td><td class="fri">30</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">May</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="sat">1</td><td class="sun">2</td></tr>
  <tr><td class="mon">3</td><td class="tue">4</td><td class="wed">5</td><td class="thu">6</td><td class="fri">7</td><td class="sat">8</td><td class="sun">9</td></tr>
  <tr><td class="mon">10</td><td class="tue">11</td><td class="wed">12</td><td class="thu">13</td><td class="fri">14</td><td class="sat">15</td><td class="sun">16</td></tr>
  <tr><td class="mon">17</td><td class="tue">18</td><td class="wed">19</td><td class="thu">20</td><td class="fri">21</td><td class="sat">22</td><td class="sun">23</td></tr>
  <tr><td class="mon">24</td><td class="tue">25</td><td class="wed">26</td><td class="thu">27</td><td class="fri">28</td><td class="sat">29</td><td class="sun">30</td></tr>
  <tr><td class="mon">31</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">June</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="tue">1</td><td class="wed">2</td><td class="thu">3</td><td class="fri">4</td><td class="sat">5</td><td class="sun">6</td></tr>
  <tr><td class="mon">7</td><td class="tue">8</td><td class="wed">9</td><td class="thu">10</td><td class="fri">11</td><td class="sat">12</td><td class="sun">13</td></tr>
  <tr><td class="mon">14</td><td class="tue">15</td><td class="wed">16</td><td class="thu">17</td><td class="fri">18</td><td class="sat">19</td><td class="sun">20</td></tr>
  <tr><td class="mon">21</td><td class="tue">22</td><td class="wed">23</td><td class="thu">24</td><td class="fri">25</td><td class="sat">26</td><td class="sun">27</td></tr>
  <tr><td class="mon">28</td><td class="tue">29</td><td class="wed">30</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td></tr><tr><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">July</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="thu">1</td><td class="fri">2</td><td class="sat">3</td><td class="sun">4</td></tr>
  <tr><td class="mon">5</td><td class="tue">6</td><td class="wed">7</td><td class="thu">8</td><td class="fri">9</td><td class="sat">10</td><td class="sun">11</td></tr>
  <tr><td class="mon">12</td><td class="tue">13</td><td class="wed">14</td><td class="thu">15</td><td class="fri">16</td><td class="sat">17</td><td class="sun">18</td></tr>
  <tr><td class="mon">19</td><td class="tue">20</td><td class="wed">21</td><td class="thu">22</td><td class="fri">23</td><td class="sat">24</td><td class="sun">25</td></tr>
  <tr><td class="mon">26</td><td class="tue">27</td><td class="wed">28</td><td class="thu">29</td><td class="fri">30</td><td class="sat">31</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">August</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="sun">1</td></tr>
  <tr><td class="mon">2</td><td class="tue">3</td><td class="wed">4</td><td class="thu">5</td><td class="fri">6</td><td class="sat">7</td><td class="sun">8</td></tr>
  <tr><td class="mon">9</td><td class="tue">10</td><td class="wed">11</td><td class="thu">12</td><td class="fri">13</td><td class="sat">14</td><td class="sun">15</td></tr>
  <tr><td class="mon">16</td><td class="tue">17</td><td class="wed">18</td><td class="thu">19</td><td class="fri">20</td><td class="sat">21</td><td class="sun">22</td></tr>
  <tr><td class="mon">23</td><td class="tue">24</td><td class="wed">25</td><td class="thu">26</td><td class="fri">27</td><td class="sat">28</td><td class="sun">29</td></tr>
  <tr><td class="mon">30</td><td class="tue">31</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">September</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="wed">1</td><td class="thu">2</td><td class="fri">3</td><td class="sat">4</td><td class="sun">5</td></tr>
  <tr><td class="mon">6</td><td class="tue">7</td><td class="wed">8</td><td class="thu">9</td><td class="fri">10</td><td class="sat">11</td><td class="sun">12</td></tr>
  <tr><td class="mon">13</td><td class="tue">14</td><td class="wed">15</td><td class="thu">16</td><td class="fri">17</td><td class="sat">18</td><td class="sun">19</td></tr>
  <tr><td class="mon">20</td><td class="tue">21</td><td class="wed">22</td><td class="thu">23</td><td class="fri">24</td><td class="sat">25</td><td class="sun">26</td></tr>
  <tr><td class="mon">27</td><td class="tue">28</td><td class="wed">29</td><td class="thu">30</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td></tr><tr><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">October</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="fri">1</td><td class="sat">2</td><td class="sun">3</td></tr>
  <tr><td class="mon">4</td><td class="tue">5</td><td class="wed">6</td><td class="thu">7</td><td class="fri">8</td><td class="sat">9</td><td class="sun">10</td></tr>
  <tr><td class="mon">11</td><td class="tue">12</td><td class="wed">13</td><td class="thu">14</td><td class="fri">15</td><td class="sat">16</td><td class="sun">17</td></tr>
  <tr><td class="mon">18</td><td class="tue">19</td><td class="wed">20</td><td class="thu">21</td><td class="fri">22</td><td class="sat">23</td><td class="sun">24</td></tr>
  <tr><td class="mon">25</td><td class="tue">26</td><td class="wed">27</td><td class="thu">28</td><td class="fri">29</td><td class="sat">30</td><td class="sun">31</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">November</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="mon">1</td><td class="tue">2</td><td class="wed">3</td><td class="thu">4</td><td class="fri">5</td><td class="sat">6</td><td class="sun">7</td></tr>
  <tr><td class="mon">8</td><td class="tue">9</td><td class="wed">10</td><td class="thu">11</td><td class="fri">12</td><td class="sat">13</td><td class="sun">14</td></tr>
  <tr><td class="mon">15</td><td class="tue">16</td><td class="wed">17</td><td class="thu">18</td><td class="fri">19</td><td class="sat">20</td><td class="sun">21</td></tr>
  <tr><td class="mon">22</td><td class="tue">23</td><td class="wed">24</td><td class="thu">25</td><td class="fri">26</td><td class="sat">27</td><td class="sun">28</td></tr>
  <tr><td class="mon">29</td><td class="tue">30</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td><td><table border="0" cellpadding="0" cellspacing="0" class="month">
  <tr><th colspan="7" class="month">December</th></tr>
  <tr><th class="mon">Mon</th><th class="tue">Tue</th><th class="wed">Wed</th><th class="thu">Thu</th><th class="fri">Fri</th><th class="sat">Sat</th><th class="sun">Sun</th></tr>
  <tr><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td><td class="wed">1</td><td class="thu">2</td><td class="fri">3</td><td class="sat">4</td><td class="sun">5</td></tr>
  <tr><td class="mon">6</td><td class="tue">7</td><td class="wed">8</td><td class="thu">9</td><td class="fri">10</td><td class="sat">11</td><td class="sun">12</td></tr>
  <tr><td class="mon">13</td><td class="tue">14</td><td class="wed">15</td><td class="thu">16</td><td class="fri">17</td><td class="sat">18</td><td class="sun">19</td></tr>
  <tr><td class="mon">20</td><td class="tue">21</td><td class="wed">22</td><td class="thu">23</td><td class="fri">24</td><td class="sat">25</td><td class="sun">26</td></tr>
  <tr><td class="mon">27</td><td class="tue">28</td><td class="wed">29</td><td class="thu">30</td><td class="fri">31</td><td class="noday">&nbsp;</td><td class="noday">&nbsp;</td></tr>
  </table>
  </td></tr></table></body>
  </html>
  """
  
  
  class OutputTestCase(unittest.TestCase):
      def normalize_calendar(self, s):
          # Filters out locale dependent strings
          def neitherspacenordigit(c):
              return not c.isspace() and not c.isdigit()
  
          lines = []
          for line in s.splitlines(False):
              # Drop texts, as they are locale dependent
              if line and not filter(neitherspacenordigit, line):
                  lines.append(line)
          return lines
  
      def test_output(self):
          self.assertEqual(
              self.normalize_calendar(calendar.calendar(2004)),
              self.normalize_calendar(result_2004_text)
          )
  
      def test_output_textcalendar(self):
          self.assertEqual(
              calendar.TextCalendar().formatyear(2004).strip(),
              result_2004_text.strip()
          )
  
      def test_output_htmlcalendar(self):
          self.assertEqual(
              calendar.HTMLCalendar().formatyearpage(2004).strip(),
              result_2004_html.strip()
          )
  
  
  class CalendarTestCase(unittest.TestCase):
      def test_isleap(self):
          # Make sure that the return is right for a few years, and
          # ensure that the return values are 1 or 0, not just true or
          # false (see SF bug #485794).  Specific additional tests may
          # be appropriate; this tests a single "cycle".
          self.assertEqual(calendar.isleap(2000), 1)
          self.assertEqual(calendar.isleap(2001), 0)
          self.assertEqual(calendar.isleap(2002), 0)
          self.assertEqual(calendar.isleap(2003), 0)
  
      def test_setfirstweekday(self):
          self.assertRaises(ValueError, calendar.setfirstweekday, 'flabber')
          self.assertRaises(ValueError, calendar.setfirstweekday, -1)
          self.assertRaises(ValueError, calendar.setfirstweekday, 200)
          orig = calendar.firstweekday()
          calendar.setfirstweekday(calendar.SUNDAY)
          self.assertEqual(calendar.firstweekday(), calendar.SUNDAY)
          calendar.setfirstweekday(calendar.MONDAY)
          self.assertEqual(calendar.firstweekday(), calendar.MONDAY)
          calendar.setfirstweekday(orig)
  
      def test_enumerateweekdays(self):
          self.assertRaises(IndexError, calendar.day_abbr.__getitem__, -10)
          self.assertRaises(IndexError, calendar.day_name.__getitem__, 10)
          self.assertEqual(len([d for d in calendar.day_abbr]), 7)
  
      def test_days(self):
          for attr in "day_name", "day_abbr":
              value = getattr(calendar, attr)
              self.assertEqual(len(value), 7)
              self.assertEqual(len(value[:]), 7)
              # ensure they're all unique
              self.assertEqual(len(set(value)), 7)
              # verify it "acts like a sequence" in two forms of iteration
              self.assertEqual(value[::-1], list(reversed(value)))
  
      def test_months(self):
          for attr in "month_name", "month_abbr":
              value = getattr(calendar, attr)
              self.assertEqual(len(value), 13)
              self.assertEqual(len(value[:]), 13)
              self.assertEqual(value[0], "")
              # ensure they're all unique
              self.assertEqual(len(set(value)), 13)
              # verify it "acts like a sequence" in two forms of iteration
              self.assertEqual(value[::-1], list(reversed(value)))
  
      def test_localecalendars(self):
          # ensure that Locale{Text,HTML}Calendar resets the locale properly
          # (it is still not thread-safe though)
          old_october = calendar.TextCalendar().formatmonthname(2010, 10, 10)
          try:
              cal = calendar.LocaleTextCalendar(locale='')
              local_weekday = cal.formatweekday(1, 10)
              local_month = cal.formatmonthname(2010, 10, 10)
          except locale.Error:
              # cannot set the system default locale -- skip rest of test
              raise unittest.SkipTest('cannot set the system default locale')
          # should be encodable
          local_weekday.encode('utf-8')
          local_month.encode('utf-8')
          self.assertEqual(len(local_weekday), 10)
          self.assertGreaterEqual(len(local_month), 10)
          cal = calendar.LocaleHTMLCalendar(locale='')
          local_weekday = cal.formatweekday(1)
          local_month = cal.formatmonthname(2010, 10)
          # should be encodable
          local_weekday.encode('utf-8')
          local_month.encode('utf-8')
          new_october = calendar.TextCalendar().formatmonthname(2010, 10, 10)
          self.assertEqual(old_october, new_october)
  
      def test_itermonthdates(self):
          # ensure itermonthdates doesn't overflow after datetime.MAXYEAR
          # see #15421
          list(calendar.Calendar().itermonthdates(datetime.MAXYEAR, 12))
  
  
  class MonthCalendarTestCase(unittest.TestCase):
      def setUp(self):
          self.oldfirstweekday = calendar.firstweekday()
          calendar.setfirstweekday(self.firstweekday)
  
      def tearDown(self):
          calendar.setfirstweekday(self.oldfirstweekday)
  
      def check_weeks(self, year, month, weeks):
          cal = calendar.monthcalendar(year, month)
          self.assertEqual(len(cal), len(weeks))
          for i in xrange(len(weeks)):
              self.assertEqual(weeks[i], sum(day != 0 for day in cal[i]))
  
  
  class MondayTestCase(MonthCalendarTestCase):
      firstweekday = calendar.MONDAY
  
      def test_february(self):
          # A 28-day february starting on monday (7+7+7+7 days)
          self.check_weeks(1999, 2, (7, 7, 7, 7))
  
          # A 28-day february starting on tuesday (6+7+7+7+1 days)
          self.check_weeks(2005, 2, (6, 7, 7, 7, 1))
  
          # A 28-day february starting on sunday (1+7+7+7+6 days)
          self.check_weeks(1987, 2, (1, 7, 7, 7, 6))
  
          # A 29-day february starting on monday (7+7+7+7+1 days)
          self.check_weeks(1988, 2, (7, 7, 7, 7, 1))
  
          # A 29-day february starting on tuesday (6+7+7+7+2 days)
          self.check_weeks(1972, 2, (6, 7, 7, 7, 2))
  
          # A 29-day february starting on sunday (1+7+7+7+7 days)
          self.check_weeks(2004, 2, (1, 7, 7, 7, 7))
  
      def test_april(self):
          # A 30-day april starting on monday (7+7+7+7+2 days)
          self.check_weeks(1935, 4, (7, 7, 7, 7, 2))
  
          # A 30-day april starting on tuesday (6+7+7+7+3 days)
          self.check_weeks(1975, 4, (6, 7, 7, 7, 3))
  
          # A 30-day april starting on sunday (1+7+7+7+7+1 days)
          self.check_weeks(1945, 4, (1, 7, 7, 7, 7, 1))
  
          # A 30-day april starting on saturday (2+7+7+7+7 days)
          self.check_weeks(1995, 4, (2, 7, 7, 7, 7))
  
          # A 30-day april starting on friday (3+7+7+7+6 days)
          self.check_weeks(1994, 4, (3, 7, 7, 7, 6))
  
      def test_december(self):
          # A 31-day december starting on monday (7+7+7+7+3 days)
          self.check_weeks(1980, 12, (7, 7, 7, 7, 3))
  
          # A 31-day december starting on tuesday (6+7+7+7+4 days)
          self.check_weeks(1987, 12, (6, 7, 7, 7, 4))
  
          # A 31-day december starting on sunday (1+7+7+7+7+2 days)
          self.check_weeks(1968, 12, (1, 7, 7, 7, 7, 2))
  
          # A 31-day december starting on thursday (4+7+7+7+6 days)
          self.check_weeks(1988, 12, (4, 7, 7, 7, 6))
  
          # A 31-day december starting on friday (3+7+7+7+7 days)
          self.check_weeks(2017, 12, (3, 7, 7, 7, 7))
  
          # A 31-day december starting on saturday (2+7+7+7+7+1 days)
          self.check_weeks(2068, 12, (2, 7, 7, 7, 7, 1))
  
  
  class SundayTestCase(MonthCalendarTestCase):
      firstweekday = calendar.SUNDAY
  
      def test_february(self):
          # A 28-day february starting on sunday (7+7+7+7 days)
          self.check_weeks(2009, 2, (7, 7, 7, 7))
  
          # A 28-day february starting on monday (6+7+7+7+1 days)
          self.check_weeks(1999, 2, (6, 7, 7, 7, 1))
  
          # A 28-day february starting on saturday (1+7+7+7+6 days)
          self.check_weeks(1997, 2, (1, 7, 7, 7, 6))
  
          # A 29-day february starting on sunday (7+7+7+7+1 days)
          self.check_weeks(2004, 2, (7, 7, 7, 7, 1))
  
          # A 29-day february starting on monday (6+7+7+7+2 days)
          self.check_weeks(1960, 2, (6, 7, 7, 7, 2))
  
          # A 29-day february starting on saturday (1+7+7+7+7 days)
          self.check_weeks(1964, 2, (1, 7, 7, 7, 7))
  
      def test_april(self):
          # A 30-day april starting on sunday (7+7+7+7+2 days)
          self.check_weeks(1923, 4, (7, 7, 7, 7, 2))
  
          # A 30-day april starting on monday (6+7+7+7+3 days)
          self.check_weeks(1918, 4, (6, 7, 7, 7, 3))
  
          # A 30-day april starting on saturday (1+7+7+7+7+1 days)
          self.check_weeks(1950, 4, (1, 7, 7, 7, 7, 1))
  
          # A 30-day april starting on friday (2+7+7+7+7 days)
          self.check_weeks(1960, 4, (2, 7, 7, 7, 7))
  
          # A 30-day april starting on thursday (3+7+7+7+6 days)
          self.check_weeks(1909, 4, (3, 7, 7, 7, 6))
  
      def test_december(self):
          # A 31-day december starting on sunday (7+7+7+7+3 days)
          self.check_weeks(2080, 12, (7, 7, 7, 7, 3))
  
          # A 31-day december starting on monday (6+7+7+7+4 days)
          self.check_weeks(1941, 12, (6, 7, 7, 7, 4))
  
          # A 31-day december starting on saturday (1+7+7+7+7+2 days)
          self.check_weeks(1923, 12, (1, 7, 7, 7, 7, 2))
  
          # A 31-day december starting on wednesday (4+7+7+7+6 days)
          self.check_weeks(1948, 12, (4, 7, 7, 7, 6))
  
          # A 31-day december starting on thursday (3+7+7+7+7 days)
          self.check_weeks(1927, 12, (3, 7, 7, 7, 7))
  
          # A 31-day december starting on friday (2+7+7+7+7+1 days)
          self.check_weeks(1995, 12, (2, 7, 7, 7, 7, 1))
  
  
  class MonthRangeTestCase(unittest.TestCase):
      def test_january(self):
          # Tests valid lower boundary case.
          self.assertEqual(calendar.monthrange(2004,1), (3,31))
  
      def test_february_leap(self):
          # Tests February during leap year.
          self.assertEqual(calendar.monthrange(2004,2), (6,29))
  
      def test_february_nonleap(self):
          # Tests February in non-leap year.
          self.assertEqual(calendar.monthrange(2010,2), (0,28))
  
      def test_december(self):
          # Tests valid upper boundary case.
          self.assertEqual(calendar.monthrange(2004,12), (2,31))
  
      def test_zeroth_month(self):
          # Tests low invalid boundary case.
          with self.assertRaises(calendar.IllegalMonthError):
              calendar.monthrange(2004, 0)
  
      def test_thirteenth_month(self):
          # Tests high invalid boundary case.
          with self.assertRaises(calendar.IllegalMonthError):
              calendar.monthrange(2004, 13)
  
  class LeapdaysTestCase(unittest.TestCase):
      def test_no_range(self):
          # test when no range i.e. two identical years as args
          self.assertEqual(calendar.leapdays(2010,2010), 0)
  
      def test_no_leapdays(self):
          # test when no leap years in range
          self.assertEqual(calendar.leapdays(2010,2011), 0)
  
      def test_no_leapdays_upper_boundary(self):
          # test no leap years in range, when upper boundary is a leap year
          self.assertEqual(calendar.leapdays(2010,2012), 0)
  
      def test_one_leapday_lower_boundary(self):
          # test when one leap year in range, lower boundary is leap year
          self.assertEqual(calendar.leapdays(2012,2013), 1)
  
      def test_several_leapyears_in_range(self):
          self.assertEqual(calendar.leapdays(1997,2020), 5)
  
  
  def conv(s):
      return s.replace('\n', os.linesep)
  
  class CommandLineTestCase(unittest.TestCase):
      def run_ok(self, *args):
          return assert_python_ok('-m', 'calendar', *args)[1]
  
      def assertFailure(self, *args):
          rc, stdout, stderr = assert_python_failure('-m', 'calendar', *args)
          self.assertIn(b'Usage:', stderr)
          self.assertEqual(rc, 2)
  
      def test_help(self):
          stdout = self.run_ok('-h')
          self.assertIn(b'Usage:', stdout)
          self.assertIn(b'calendar.py', stdout)
          self.assertIn(b'--help', stdout)
  
      def test_illegal_arguments(self):
          self.assertFailure('-z')
          #self.assertFailure('spam')
          #self.assertFailure('2004', 'spam')
          self.assertFailure('-t', 'html', '2004', '1')
  
      def test_output_current_year(self):
          stdout = self.run_ok()
          year = datetime.datetime.now().year
          self.assertIn((' %s' % year).encode(), stdout)
          self.assertIn(b'January', stdout)
          self.assertIn(b'Mo Tu We Th Fr Sa Su', stdout)
  
      def test_output_year(self):
          stdout = self.run_ok('2004')
          self.assertEqual(stdout.strip(), conv(result_2004_text).strip())
  
      def test_output_month(self):
          stdout = self.run_ok('2004', '1')
          self.assertEqual(stdout.strip(), conv(result_2004_01_text).strip())
  
      def test_option_encoding(self):
          self.assertFailure('-e')
          self.assertFailure('--encoding')
          stdout = self.run_ok('--encoding', 'rot-13', '2004')
          self.assertEqual(stdout.strip(), conv(result_2004_text.encode('rot-13')).strip())
  
      def test_option_locale(self):
          self.assertFailure('-L')
          self.assertFailure('--locale')
          self.assertFailure('-L', 'en')
          lang, enc = locale.getdefaultlocale()
          lang = lang or 'C'
          enc = enc or 'UTF-8'
          try:
              oldlocale = locale.getlocale(locale.LC_TIME)
              try:
                  locale.setlocale(locale.LC_TIME, (lang, enc))
              finally:
                  locale.setlocale(locale.LC_TIME, oldlocale)
          except (locale.Error, ValueError):
              self.skipTest('cannot set the system default locale')
          stdout = self.run_ok('--locale', lang, '--encoding', enc, '2004')
          self.assertIn('2004'.encode(enc), stdout)
  
      def test_option_width(self):
          self.assertFailure('-w')
          self.assertFailure('--width')
          self.assertFailure('-w', 'spam')
          stdout = self.run_ok('--width', '3', '2004')
          self.assertIn(b'Mon Tue Wed Thu Fri Sat Sun', stdout)
  
      def test_option_lines(self):
          self.assertFailure('-l')
          self.assertFailure('--lines')
          self.assertFailure('-l', 'spam')
          stdout = self.run_ok('--lines', '2', '2004')
          self.assertIn(conv('December\n\nMo Tu We'), stdout)
  
      def test_option_spacing(self):
          self.assertFailure('-s')
          self.assertFailure('--spacing')
          self.assertFailure('-s', 'spam')
          stdout = self.run_ok('--spacing', '8', '2004')
          self.assertIn(b'Su        Mo', stdout)
  
      def test_option_months(self):
          self.assertFailure('-m')
          self.assertFailure('--month')
          self.assertFailure('-m', 'spam')
          stdout = self.run_ok('--months', '1', '2004')
          self.assertIn(conv('\nMo Tu We Th Fr Sa Su\n'), stdout)
  
      def test_option_type(self):
          self.assertFailure('-t')
          self.assertFailure('--type')
          self.assertFailure('-t', 'spam')
          stdout = self.run_ok('--type', 'text', '2004')
          self.assertEqual(stdout.strip(), conv(result_2004_text).strip())
          stdout = self.run_ok('--type', 'html', '2004')
          self.assertEqual(stdout[:6], b'<?xml ')
          self.assertIn(b'<title>Calendar for 2004</title>', stdout)
  
      def test_html_output_current_year(self):
          stdout = self.run_ok('--type', 'html')
          year = datetime.datetime.now().year
          self.assertIn(('<title>Calendar for %s</title>' % year).encode(),
                        stdout)
          self.assertIn(b'<tr><th colspan="7" class="month">January</th></tr>',
                        stdout)
  
      def test_html_output_year_encoding(self):
          stdout = self.run_ok('-t', 'html', '--encoding', 'ascii', '2004')
          self.assertEqual(stdout.strip(), conv(result_2004_html).strip())
  
      def test_html_output_year_css(self):
          self.assertFailure('-t', 'html', '-c')
          self.assertFailure('-t', 'html', '--css')
          stdout = self.run_ok('-t', 'html', '--css', 'custom.css', '2004')
          self.assertIn(b'<link rel="stylesheet" type="text/css" '
                        b'href="custom.css" />', stdout)
  
  
  def test_main():
      test_support.run_unittest(
          OutputTestCase,
          CalendarTestCase,
          MondayTestCase,
          SundayTestCase,
          MonthRangeTestCase,
          LeapdaysTestCase,
          CommandLineTestCase,
      )
  
  
  if __name__ == "__main__":
      test_main()
      unittest.main()
  