Change Details

Remove the tip() function in `abc_` tests when it is unused orused only once (set the attribute directly). When the function is used multiple times in a test, make it a method and rename it to `set_tip()`.

Remove the `tip()` function in `abc_` tests when it is unused or used only once (set the attribute directly). When the function is used multiple times in a test, make it a method and rename it to `set_tip()`.

Remove the `tip()` function in `abc_` tests when it is unused or used only once (set the attribute directly). When the function is used multiple times in a test, make it a method and rename it to `set_tip()`.