http://bugs.winehq.org/show_bug.cgi?id=22996
--- Comment #14 from Dmitry Timoshkov dmitry@codeweavers.com 2011-02-22 21:48:06 CST --- (In reply to comment #13)
I have a draft of a test for font escapement. He draws a letter without the transformation and stores the bitmap using BitBlt and GetDIBits. The test then change font escapement, once again draws the letter, read a new bitmap and compares it with the original. How such a test may be useful for Wine?
Testing bitmap contents is not useful since it may differ across platforms. Though you may try to test actual text extents returned by GetTextExtentPoint, GetOutlineTextMetrics or GetGlyphOutline, or simply point to a visual test application which shows the problem if formal testing is not possible.