Hi there. It sounds like in your scenario, that "test2" calendar entry that you created on your phone was create on your 'phone' calendar, and not your google/gmail calendar.
When creating a calendar entry on your phone, you can actually select which calendar on which to put that entry. Your phone will have a "phone" calendar (name may vary) -- that is actually the default phone calendar, not attached to an account. You'll have another calendar option for your gmail/google account. If you select that, then you should see the calendar entry sync successfully to your google calendar on the website
Different phones call that option different things, but its usually at or near the top of the screen when you are creating your calendar entry. It may be a button, a drop down with a small arrow, or text that you can click to bring up the menu of calendars.
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