Ideographic, spaces at beginning of line
Test passes if you see a single line with no spaces after the character 行.
Assertion: The source text [ideographic characters + line break + spaces + ideographic characters] will display as a single line with no white space in it.
The assumptions this test makes about expected behaviour are based on the white-space processing rules described in CSS3. The white space is removed in the first step of the white-space processing rules. Line break transformation sees East Asian context on both sides so removes the line break.