spec/cronline_spec.rb in rufus-scheduler-3.0.6 vs spec/cronline_spec.rb in rufus-scheduler-3.0.7

@@ -114,10 +114,17 @@
       to_a(
         '/10 * * * *',
         [ [0], [ 0, 10, 20, 30, 40, 50], nil, nil, nil, nil, nil, nil ])
     end
 
+    it 'rejects / for days (every other wednesday)' do
+
+      lambda {
+        Rufus::Scheduler::CronLine.new('* * * * wed/2')
+      }.should raise_error(ArgumentError)
+    end
+
     it 'does not support ranges for monthdays (sun#1-sun#2)' do
 
       lambda {
         Rufus::Scheduler::CronLine.new('* * * * sun#1-sun#2')
       }.should raise_error(ArgumentError)
@@ -472,9 +479,98 @@
 
       #Rufus::Scheduler::CronLine.new(
       #    '10,20,30 * * * * *').brute_frequency.should == 10
         #
         # takes > 20s ...
+    end
+  end
+
+  context 'summer time' do
+
+    # let's assume summer time jumps always occur on sundays
+
+    # cf gh-114
+    #
+    it 'schedules correctly through a switch into summer time' do
+
+      #j = `zdump -v Europe/Berlin | grep "Sun Mar" | grep 2014`.split("\n")[0]
+      #j = j.match(/^.+ (Sun Mar .+ UTC) /)[1]
+        # only works on system that have a zdump...
+
+      in_zone 'Europe/Berlin' do
+
+        # find the summer jump
+
+        j = Time.parse('2014-02-28 12:00')
+        loop do
+          jj = j + 24 * 3600
+          break if jj.isdst
+          j = jj
+        end
+
+        # test
+
+        friday = j - 24 * 3600 # one day before
+
+        # verify the playground...
+        #
+        friday.isdst.should == false
+        (friday + 24 * 3600 * 3).isdst.should == true
+
+        cl0 = Rufus::Scheduler::CronLine.new('02 00 * * 1,2,3,4,5')
+        cl1 = Rufus::Scheduler::CronLine.new('45 08 * * 1,2,3,4,5')
+
+        n0 = cl0.next_time(friday)
+        n1 = cl1.next_time(friday)
+
+        n0.strftime('%H:%M:%S %^a').should == '00:02:00 MON'
+        n1.strftime('%H:%M:%S %^a').should == '08:45:00 MON'
+
+        n0.isdst.should == true
+        n1.isdst.should == true
+
+        (n0 - 24 * 3600 * 3).strftime('%H:%M:%S %^a').should == '23:02:00 THU'
+        (n1 - 24 * 3600 * 3).strftime('%H:%M:%S %^a').should == '07:45:00 FRI'
+      end
+    end
+
+    it 'schedules correctly through a switch out of summer time' do
+
+      in_zone 'Europe/Berlin' do
+
+        # find the winter jump
+
+        j = Time.parse('2014-08-31 12:00')
+        loop do
+          jj = j + 24 * 3600
+          break if jj.isdst == false
+          j = jj
+        end
+
+        # test
+
+        friday = j - 24 * 3600 # one day before
+
+        # verify the playground...
+        #
+        friday.isdst.should == true
+        (friday + 24 * 3600 * 3).isdst.should == false
+
+        cl0 = Rufus::Scheduler::CronLine.new('02 00 * * 1,2,3,4,5')
+        cl1 = Rufus::Scheduler::CronLine.new('45 08 * * 1,2,3,4,5')
+
+        n0 = cl0.next_time(friday)
+        n1 = cl1.next_time(friday)
+
+        n0.strftime('%H:%M:%S %^a').should == '00:02:00 MON'
+        n1.strftime('%H:%M:%S %^a').should == '08:45:00 MON'
+
+        n0.isdst.should == false
+        n1.isdst.should == false
+
+        (n0 - 24 * 3600 * 3).strftime('%H:%M:%S %^a').should == '01:02:00 FRI'
+        (n1 - 24 * 3600 * 3).strftime('%H:%M:%S %^a').should == '09:45:00 FRI'
+      end
     end
   end
 end