Add failing spec for issue #514

Author: pacso

spec/examples/daily_rule_spec.rb

@@ -31,44 +31,44 @@ module IceCube
         schedule = Schedule.new(Time.local(2013, 3, 9, 2, 30, 0))
         schedule.add_recurrence_rule Rule.daily
         expect(schedule.first(3)).to eq([
-          Time.local(2013, 3, 9, 2, 30, 0), # -0800
-          Time.local(2013, 3, 10, 3, 30, 0), # -0700
-          Time.local(2013, 3, 11, 2, 30, 0) # -0700
-        ])
+                                          Time.local(2013, 3, 9, 2, 30, 0), # -0800
+                                          Time.local(2013, 3, 10, 3, 30, 0), # -0700
+                                          Time.local(2013, 3, 11, 2, 30, 0) # -0700
+                                        ])
       end
 
       it "should not skip times in DST end hour" do
         schedule = Schedule.new(Time.local(2013, 11, 2, 2, 30, 0))
         schedule.add_recurrence_rule Rule.daily
         expect(schedule.first(3)).to eq([
-          Time.local(2013, 11, 2, 2, 30, 0), # -0700
-          Time.local(2013, 11, 3, 2, 30, 0), # -0800
-          Time.local(2013, 11, 4, 2, 30, 0) # -0800
-        ])
+                                          Time.local(2013, 11, 2, 2, 30, 0), # -0700
+                                          Time.local(2013, 11, 3, 2, 30, 0), # -0800
+                                          Time.local(2013, 11, 4, 2, 30, 0) # -0800
+                                        ])
       end
 
       it "should include nearest time to DST start when locking hour_of_day" do
         schedule = Schedule.new(Time.local(2013, 3, 9, 2, 0, 0))
         schedule.add_recurrence_rule Rule.daily.hour_of_day(2)
         expect(schedule.first(3)).to eq([
-          Time.local(2013, 3, 9, 2, 0, 0), # -0800
-          Time.local(2013, 3, 10, 3, 0, 0), # -0700
-          Time.local(2013, 3, 11, 2, 0, 0) # -0700
-        ])
+                                          Time.local(2013, 3, 9, 2, 0, 0), # -0800
+                                          Time.local(2013, 3, 10, 3, 0, 0), # -0700
+                                          Time.local(2013, 3, 11, 2, 0, 0) # -0700
+                                        ])
       end
 
       it "should not skip days where DST changes" do
         start_time = Time.local(2013, 3, 10, 0, 0, 0)
-        schedule = Schedule.new(start_time)
+        schedule   = Schedule.new(start_time)
         schedule.add_recurrence_rule Rule.daily.hour_of_day(19)
         expect(schedule.occurrences_between(start_time, start_time + ONE_DAY)).to eq([
-          Time.local(2013, 3, 10, 19, 0, 0)
-        ])
+                                                                                       Time.local(2013, 3, 10, 19, 0, 0)
+                                                                                     ])
       end
     end
 
     it "should update previous interval" do
-      t0 = Time.now
+      t0   = Time.now
       rule = Rule.daily(7)
       rule.interval(5)
       expect(rule.next_time(t0 + 1, t0, nil)).to eq(t0 + 5 * ONE_DAY)
@@ -107,9 +107,23 @@ module IceCube
       # check assumption 2 -- 1 (2) (3) (4) 5 (6)
       times = schedule.occurrences(t0 + 5 * ONE_DAY)
       expect(times).to eq([
-        t0 + 5 * ONE_HOUR + 45 * ONE_MINUTE,
-        t0 + 4 * ONE_DAY + 5 * ONE_HOUR + 45 * ONE_MINUTE
-      ])
+                            t0 + 5 * ONE_HOUR + 45 * ONE_MINUTE,
+                            t0 + 4 * ONE_DAY + 5 * ONE_HOUR + 45 * ONE_MINUTE
+                          ])
+    end
+
+    it "selects the first possible starting occurrence before starting interval" do
+      schedule_start = Time.new(2021, 3, 28, 10, 0, 0, 'UTC')
+      end_time       = Time.new(2021, 4, 7, 23, 59, 59, 'UTC')
+      rule           = IceCube::Rule.daily(4).hour_of_day(9).minute_of_hour(0).second_of_minute(0)
+      schedule       = IceCube::Schedule.new(schedule_start) { |s| s.add_recurrence_rule(rule) }
+
+      expect(schedule.occurrences(end_time))
+        .to eq([
+                 Time.new(2021, 3, 29, 9, 0, 0, "UTC"),
+                 Time.new(2021, 4, 2, 9, 0, 0, "UTC"),
+                 Time.new(2021, 4, 6, 9, 0, 0, "UTC")
+               ])
     end
 
     describe "day validation" do