Preparations

1. login to the Admin Console
2. go to Configuration → Website → Scheduled Tasks

Testing validation

1. test Minute field validation:
   1. open any scheduled task for editing
   2. put values 0, 1, 47, 2-7, */5, and 59 into a Minute field
   3. save changes
   4. confirm, that no validation error happened
   5. put values 60, and 75 into a Minute field
   6. save changes
   7. confirm, that the validation error happened

1. test Hour field validation:
   1. open any scheduled task for editing
   2. put values 0, 7, 4-15, */5, and 23 into an Hour field
   3. save changes
   4. confirm, that no validation error happened
   5. put values 60, and 75 into an Hour field
   6. save changes
   7. confirm, that the validation error happened

1. test Day field validation:
   1. open any scheduled task for editing
   2. put values 1, 12, 3-8, */2, and 30 into a Day field
   3. save changes
   4. confirm, that no validation error happened
   5. put values 60, and 75 into a Day field
   6. save changes
   7. confirm, that the validation error happened

1. test Month field validation:
   1. open any scheduled task for editing
   2. put values 1, FEB, 5-7, */2, and 12 into a Month field
   3. save changes
   4. confirm, that no validation error happened
   5. put values 60, and 75 into a Month field
   6. save changes
   7. confirm, that the validation error happened

1. test Weekday field validation:
   1. open any scheduled task for editing
   2. put values 3, FRI, 2-5, */2, and 6 into a Weekday field
   3. save changes
   4. confirm, that no validation error happened
   5. put values 60, and 75 into a Weekday field
   6. save changes
   7. confirm, that the validation error happened

Testing next run date

1. open any scheduled task for editing
2. clear the Next Run On field
3. set cron expression from the below list (try each one):
   1. once a minute
   2. once an hour
   3. once a day
   4. once a month
   5. once a week
4. save changes
5. open changed record for editing
6. confirm, that Next Run On was calculated correctly