pythongh-57539: Increase calendar test coverage (pythonGH-93468)

Co-authored-by: Sean Fleming Co-authored-by: Adam Turner <[email protected]> Co-authored-by: Łukasz Langa <[email protected]>
miss-islington · Jun 7, 2022 · f0d0be3 · f0d0be3
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diff --git a/Lib/test/test_calendar.py b/Lib/test/test_calendar.py
@@ -564,6 +564,19 @@ def test_locale_calendars(self):
         new_october = calendar.TextCalendar().formatmonthname(2010, 10, 10)
         self.assertEqual(old_october, new_october)
 
+    def test_locale_calendar_formatweekday(self):
+        try:
+            # formatweekday uses different day names based on the available width.
+            cal = calendar.LocaleTextCalendar(locale='en_US')
+            # For short widths, a centered, abbreviated name is used.
+            self.assertEqual(cal.formatweekday(0, 5), " Mon ")
+            # For really short widths, even the abbreviated name is truncated.
+            self.assertEqual(cal.formatweekday(0, 2), "Mo")
+            # For long widths, the full day name is used.
+            self.assertEqual(cal.formatweekday(0, 10), "  Monday  ")
+        except locale.Error:
+            raise unittest.SkipTest('cannot set the en_US locale')
+
     def test_locale_html_calendar_custom_css_class_month_name(self):
         try:
             cal = calendar.LocaleHTMLCalendar(locale='')

diff --git a/Misc/ACKS b/Misc/ACKS
@@ -548,6 +548,7 @@ Nils Fischbeck
 Frederik Fix
 Tom Flanagan
 Matt Fleming
+Sean Fleming
 Hernán Martínez Foffani
 Benjamin Fogle
 Artem Fokin

diff --git a/Misc/NEWS.d/next/Tests/2022-06-03-16-26-04.gh-issue-57539.HxWgYO.rst b/Misc/NEWS.d/next/Tests/2022-06-03-16-26-04.gh-issue-57539.HxWgYO.rst
@@ -0,0 +1 @@
+Increase calendar test coverage for :meth:`calendar.LocaleTextCalendar.formatweekday`.