Preparations

• in IDE:
  1. create /themes/advanced/test.tpl template
• in Admin Console
  1. go to Configuration → Website → Themes section
  2. press Rescan Themes toolbar button

Part 1

1. login to Admin Console
2. go to Website & Content → Structure & Data section
3. confirm, that:
   1. category with _Auto: test name exists
   2. the _Auto: test category has test in Template column in grid
   3. the _Auto: test category has semi-transparent red icon (means not visible in menu + theme bound)
4. open _Auto: test category for editing
5. press Save button on toolbar
6. confirm, that saving was successful
7. open _Auto: test category for editing
8. change value in Template File textbox from test into test_bad
9. press Save button on toolbar
10. confirm, that saving failed due validation error on Template File field is triggered about non-existing test_bad` template
11. close editing window

Part 2

1. login to Admin Console
2. go to Website & Content → Structure & Data section
3. delete _Auto: test category
4. open Forums category (should have yellow icon in grid) for editing
5. change category type from Virtual into Template
6. specify test in Template File field
7. press Save button on toolbar
8. confirm, that saving was successful
9. confirm, that saved category now has red icon in grid
10. open Forums category (should have red icon in grid) for editing
11. change value in Template File textbox from test into test_bad
12. press Save button on toolbar
13. confirm, that saving failed due validation error on Template File field is triggered about non-existing test_bad` template
14. change category type from Template into Virtual
15. specify in-bulletin/designs/section in Template dropdown
16. press Save button on toolbar
17. confirm, that saving was successful
18. confirm, that saved category now has yellow icon in grid