This tests that the AXSelection property is correctly reported for non-native text boxes.
Some text in a textbox (34 chars).
PASS: axSelection is {0, 0} (Collapsed selection at start)
PASS: axSelection is {34, 0} (Collapsed selection at end)
PASS: axSelection is {15, 0} (Collapsed selection in the middle)
PASS: axSelection is {15, 2} (Non-collapsed selection in the middle)
PASS: axSelection is {0, 15} (Non-collapsed selection at the start)
PASS: axSelection is {15, 19} (Non-collapsed selection at the end)
PASS successfullyParsed is true

TEST COMPLETE