How to distinct different behavior of IE versions

[Thomas Heckel]

Hi,

I'm new to the wine development and interested in some bug hunting to 
gain better compatibility on windows. Just for starts I looked a little 
bit onto test.winehq.org and there especially why wininet:http was 
passing on some windows systems and on some failing with
"http.c:1837: Test failed: got 12150 expected ERROR_IO_PENDING".
12150 is defined in include/winhttp.h as ERROR_WINHTTP_HEADER_NOT_FOUND.

The occurence is dependent on the version of the wininet.dll. If it is 
6.xxx the test fails. If the dll is 7.xxx the test passes.

The relevant test case "static void test_HttpSendRequestW(int port)" 
checked in 3 days ago from Hans Leidekker as commit 
667e48286e25c56bca98a135db62d723b74ef89e looks for the HTTP header 
"UA-CPU: x86". But this string is only supported from IE 7 up. It makes 
sense that this test has to fail on machines with no IE 7+ installed.

But how to tackle such things in a test case? Take care of different 
windows versions is used in various test cases. Can the IE version be 
found out with a similar mechanism? Or should a test case just ignore 
such nuances from internet explorer?


Thanks in advance
Thomas