Thai, latin plus zwsp next to line break
Test passes if you see a single line with no space after Latin.
Assertion: The source text [thai characters + space + latin characters + zwsp + line break + thai characters] will display as a single line with no space after the latin characters.
The assumptions this test makes about expected behaviour are based on the white-space processing rules described in CSS3. During line break transformation, the zwsp will remove the line break before it is converted to a space.