shlwapi/tests: Add initial test for SHGetThreadRef.

dlls/shlwapi/tests/Makefile.in

@@ -15,6 +15,7 @@ C_SRCS = \
 	path.c \
 	shreg.c \
 	string.c \
+	thread.c \
 	url.c
 
 @MAKE_TEST_RULES@

dlls/shlwapi/tests/thread.c

@@ -0,0 +1,66 @@
+/* Tests for Thread and SHGlobalCounter functions
+ *
+ * Copyright 2010 Detlef Riekenberg
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+
+#define COBJMACROS
+#include "windef.h"
+#include "winbase.h"
+#include "winerror.h"
+#include "ole2.h"
+#include "shlwapi.h"
+
+#include "wine/test.h"
+
+static HRESULT (WINAPI *pSHGetThreadRef)(IUnknown**);
+
+/* ##### */
+
+static void test_SHGetThreadRef(void)
+{
+    IUnknown *punk;
+    HRESULT hr;
+
+    /* Not present before IE 5 */
+    if (!pSHGetThreadRef) {
+        win_skip("SHGetThreadRef not found\n");
+        return;
+    }
+
+    punk = NULL;
+    hr = pSHGetThreadRef(&punk);
+    ok( (hr == E_NOINTERFACE) && (punk == NULL),
+        "got 0x%x and %p (expected E_NOINTERFACE and NULL)\n", hr, punk);
+
+    if (0) {
+        /* this crash on Windows */
+        hr = pSHGetThreadRef(NULL);
+    }
+}
+
+START_TEST(thread)
+{
+    HMODULE hshlwapi = GetModuleHandleA("shlwapi.dll");
+
+    pSHGetThreadRef = (void *) GetProcAddress(hshlwapi, "SHGetThreadRef");
+
+    test_SHGetThreadRef();
+
+}