79514: kernel32/tests: Check what happens if QueryDosDeviceA() is given an insufficient buffer.

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The Buildbot has detected a failed build on builder runtests-default while building Wine.
Full details are available at: http://buildbot.kegel.com/builders/runtests-default/builds/202 (though maybe not for long, as I'm still reinstalling the buildbot periodically while experimenting)
BUILD FAILED: failed git

Errors:
error: patch failed: dlls/kernel32/tests/volume.c:44
error: dlls/kernel32/tests/volume.c: patch does not apply

-------------- next part --------------
From: Francois Gouget <fgouget at codeweavers.com>
Subject: kernel32/tests: Check what happens if QueryDosDeviceA() is given an insufficient buffer.
Message-Id: <alpine.DEB.2.02.1110032338460.27645 at amboise.dolphin>
Date: Mon, 3 Oct 2011 23:39:10 +0200 (CEST)

---
 dlls/kernel32/tests/volume.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/dlls/kernel32/tests/volume.c b/dlls/kernel32/tests/volume.c
index 6f0fd67..2755af5 100644
--- a/dlls/kernel32/tests/volume.c
+++ b/dlls/kernel32/tests/volume.c
@@ -44,6 +44,12 @@ static void test_query_dos_deviceA(void)
     DWORD ret, ret2, buflen=32768;
     BOOL found = FALSE;
 
+    /* callers must guess the buffer size */
+    SetLastError(0xdeadbeef);
+    ret = QueryDosDeviceA( NULL, NULL, 0 );
+    ok(!ret && GetLastError() == ERROR_INSUFFICIENT_BUFFER,
+       "QueryDosDeviceA(no buffer): returned %u, le=%u\n", ret, GetLastError());
+
     buffer = HeapAlloc( GetProcessHeap(), 0, buflen );
     SetLastError(0xdeadbeef);
     ret = QueryDosDeviceA( NULL, buffer, buflen );
-- 
1.7.6.3