Check for only one radio button is getting selected at a time using mouse cursor or Tab keyboard key selection
Check for the Radio button label description
Check for size and color of button as per CSS size and CSS style
Check for the alignment of the Radio Buttons
If radio button is a necessary/mandatory field, check if not selecting it raises an error message
If any event is associated with radio button, check if that's happening correctly.
Check for default radio button selection.
Check if we cannot select more than one radio buttons.
Verify appropriate label for each radio button.
Check Tab sequence should select radio button control in series.
Check mouse click should change property of radio button from checked to unchecked or vice versa.
Check space bar key press from keyboard should change property of radio button from checked to unchecked or vice versa.
Verify appropriate events associated with radio button property change.
Check disabled radio button should not be editable.
Check Enter key press from keyboard should change property of radio button from checked to unchecked or vice versa.
Check alignment should be proper with other controls in window.
Control should be selected and checked or unchecked event should takes place when ALT + underlined character pressed from keyboard of the appropriate radio button.
If a set of radio buttons represent a fixed set of values such as A, B and C then what happens if a blank value is retrieved from the database? (In some situations rows can be created on the database by other functions which are not screen based and thus the required initial values can be