test-parse-date: defines explicit start/end dates for DST

Prior to this patch, DST times where tested by specifying a custom TZ
environment variable that didn't defined DST transition times.

Due to a bug in glibc, the test fail on 32bits platforms that use timezone
files generated by zic from tzcode >= 2014c (glibc >= 2.20).

See https://sourceware.org/bugzilla/show_bug.cgi?id=19738

By defining explicit transition times for DST in the TZ environment variable,
the test is now independant to how the system guess those transition times.

tests/test-parse-date.t

@@ -1,258 +1,260 b''
 This runs with TZ="GMT"
 
   $ hg init
   $ echo "test-parse-date" > a
   $ hg add a
   $ hg ci -d "2006-02-01 13:00:30" -m "rev 0"
   $ echo "hi!" >> a
   $ hg ci -d "2006-02-01 13:00:30 -0500" -m "rev 1"
   $ hg tag -d "2006-04-15 13:30" "Hi"
   $ hg backout --merge -d "2006-04-15 13:30 +0200" -m "rev 3" 1
   reverting a
   created new head
   changeset 3:107ce1ee2b43 backs out changeset 1:25a1420a55f8
   merging with changeset 3:107ce1ee2b43
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg ci -d "1150000000 14400" -m "rev 4 (merge)"
   $ echo "fail" >> a
   $ hg ci -d "should fail" -m "fail"
   abort: invalid date: 'should fail'
   [255]
   $ hg ci -d "100000000000000000 1400" -m "fail"
   abort: date exceeds 32 bits: 100000000000000000
   [255]
   $ hg ci -d "100000 1400000" -m "fail"
   abort: impossible time zone offset: 1400000
   [255]
 
 Check with local timezone other than GMT and with DST
 
-  $ TZ="PST+8PDT"
+  $ TZ="PST+8PDT+7,M4.1.0/02:00:00,M10.5.0/02:00:00"
   $ export TZ
 
 PST=UTC-8 / PDT=UTC-7
+Summer time begins on April's first Sunday at 2:00am,
+and ends on October's last Sunday at 2:00am.
 
   $ hg debugrebuildstate
   $ echo "a" > a
   $ hg ci -d "2006-07-15 13:30" -m "summer@UTC-7"
   $ hg debugrebuildstate
   $ echo "b" > a
   $ hg ci -d "2006-07-15 13:30 +0500" -m "summer@UTC+5"
   $ hg debugrebuildstate
   $ echo "c" > a
   $ hg ci -d "2006-01-15 13:30" -m "winter@UTC-8"
   $ hg debugrebuildstate
   $ echo "d" > a
   $ hg ci -d "2006-01-15 13:30 +0500" -m "winter@UTC+5"
   $ hg log --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
 Test issue1014 (fractional timezones)
 
   $ hg debugdate "1000000000 -16200" # 0430
   internal: 1000000000 -16200
   standard: Sun Sep 09 06:16:40 2001 +0430
   $ hg debugdate "1000000000 -15300" # 0415
   internal: 1000000000 -15300
   standard: Sun Sep 09 06:01:40 2001 +0415
   $ hg debugdate "1000000000 -14400" # 0400
   internal: 1000000000 -14400
   standard: Sun Sep 09 05:46:40 2001 +0400
   $ hg debugdate "1000000000 0"      # GMT
   internal: 1000000000 0
   standard: Sun Sep 09 01:46:40 2001 +0000
   $ hg debugdate "1000000000 14400"  # -0400
   internal: 1000000000 14400
   standard: Sat Sep 08 21:46:40 2001 -0400
   $ hg debugdate "1000000000 15300"  # -0415
   internal: 1000000000 15300
   standard: Sat Sep 08 21:31:40 2001 -0415
   $ hg debugdate "1000000000 16200"  # -0430
   internal: 1000000000 16200
   standard: Sat Sep 08 21:16:40 2001 -0430
   $ hg debugdate "Sat Sep 08 21:16:40 2001 +0430"
   internal: 999967600 -16200
   standard: Sat Sep 08 21:16:40 2001 +0430
   $ hg debugdate "Sat Sep 08 21:16:40 2001 -0430"
   internal: 1000000000 16200
   standard: Sat Sep 08 21:16:40 2001 -0430
 
 Test 12-hours times
 
   $ hg debugdate "2006-02-01 1:00:30PM +0000"
   internal: 1138798830 0
   standard: Wed Feb 01 13:00:30 2006 +0000
   $ hg debugdate "1:00:30PM" > /dev/null
 
 Normal range
 
   $ hg log -d -1
 
 Negative range
 
   $ hg log -d "--2"
   abort: -2 must be nonnegative (see "hg help dates")
   [255]
 
 Whitespace only
 
   $ hg log -d " "
   abort: dates cannot consist entirely of whitespace
   [255]
 
 Test date formats with '>' or '<' accompanied by space characters
 
   $ hg log -d '>' --template '{date|date}\n'
   abort: invalid day spec, use '>DATE'
   [255]
   $ hg log -d '<' --template '{date|date}\n'
   abort: invalid day spec, use '<DATE'
   [255]
 
   $ hg log -d ' >' --template '{date|date}\n'
   abort: invalid day spec, use '>DATE'
   [255]
   $ hg log -d ' <' --template '{date|date}\n'
   abort: invalid day spec, use '<DATE'
   [255]
 
   $ hg log -d '> ' --template '{date|date}\n'
   abort: invalid day spec, use '>DATE'
   [255]
   $ hg log -d '< ' --template '{date|date}\n'
   abort: invalid day spec, use '<DATE'
   [255]
 
   $ hg log -d ' > ' --template '{date|date}\n'
   abort: invalid day spec, use '>DATE'
   [255]
   $ hg log -d ' < ' --template '{date|date}\n'
   abort: invalid day spec, use '<DATE'
   [255]
 
   $ hg log -d '>02/01' --template '{date|date}\n'
   $ hg log -d '<02/01' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
   $ hg log -d ' >02/01' --template '{date|date}\n'
   $ hg log -d ' <02/01' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
   $ hg log -d '> 02/01' --template '{date|date}\n'
   $ hg log -d '< 02/01' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
   $ hg log -d ' > 02/01' --template '{date|date}\n'
   $ hg log -d ' < 02/01' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
   $ hg log -d '>02/01 ' --template '{date|date}\n'
   $ hg log -d '<02/01 ' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
   $ hg log -d ' >02/01 ' --template '{date|date}\n'
   $ hg log -d ' <02/01 ' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
   $ hg log -d '> 02/01 ' --template '{date|date}\n'
   $ hg log -d '< 02/01 ' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
   $ hg log -d ' > 02/01 ' --template '{date|date}\n'
   $ hg log -d ' < 02/01 ' --template '{date|date}\n'
   Sun Jan 15 13:30:00 2006 +0500
   Sun Jan 15 13:30:00 2006 -0800
   Sat Jul 15 13:30:00 2006 +0500
   Sat Jul 15 13:30:00 2006 -0700
   Sun Jun 11 00:26:40 2006 -0400
   Sat Apr 15 13:30:00 2006 +0200
   Sat Apr 15 13:30:00 2006 +0000
   Wed Feb 01 13:00:30 2006 -0500
   Wed Feb 01 13:00:30 2006 +0000
 
 Test issue 3764 (interpreting 'today' and 'yesterday')
   $ echo "hello" >> a
   >>> import datetime
   >>> today = datetime.date.today().strftime("%b %d")
   >>> yesterday = (datetime.date.today() - datetime.timedelta(days=1)).strftime("%b %d")
   >>> dates = open('dates', 'w')
   >>> dates.write(today + '\n')
   >>> dates.write(yesterday + '\n')
   >>> dates.close()
   $ hg ci -d "`sed -n '1p' dates`" -m "today is a good day to code"
   $ hg log -d today --template '{desc}\n'
   today is a good day to code
   $ echo "goodbye" >> a
   $ hg ci -d "`sed -n '2p' dates`" -m "the time traveler's code"
   $ hg log -d yesterday --template '{desc}\n'
   the time traveler's code
   $ echo "foo" >> a
   $ hg commit -d now -m 'Explicitly committed now.'
   $ hg log -d today --template '{desc}\n'
   Explicitly committed now.
   today is a good day to code