winspool/tests: Add tests for GetFormA().

dlls/winspool.drv/tests/info.c

@@ -866,30 +866,47 @@ static void test_EnumForms(LPSTR pName)
         ok(res, "(%d) returned %d with %d (expected '!=0')\n",
                 level, res, GetLastError());
 
-        if (winetest_debug > 1) {
-            trace("dumping %d forms level %d\n", pcReturned, level);
         pFI_1a = (PFORM_INFO_1A)buffer;
         pFI_2a = (PFORM_INFO_2A)buffer;
         for (i = 0; i < pcReturned; i++)
         {
             /* first part is same in FORM_INFO_1 and FORM_INFO_2 */
             formtype = (pFI_1a->Flags <= FORMTYPE_MAX) ? formtypes[pFI_1a->Flags] : formtypes[3];
+            if (winetest_debug > 1)
                 trace("%u (%s): %.03fmm x %.03fmm, %s\n", i, pFI_1a->pName,
                       (float)pFI_1a->Size.cx/1000, (float)pFI_1a->Size.cy/1000, formtype);
 
-                if (level == 1) pFI_1a ++;
-                else {
+            if (level == 1) pFI_1a++;
+            else
+            {
+                BYTE get_buffer[1000];
+                FORM_INFO_2A *get_form = (FORM_INFO_2A *)get_buffer;
+                DWORD get_needed;
+
                 /* output additional FORM_INFO_2 fields */
+                if (winetest_debug > 1)
                     trace("\tkeyword=%s strtype=%u muidll=%s resid=%u dispname=%s langid=%u\n",
                           pFI_2a->pKeyword, pFI_2a->StringType, pFI_2a->pMuiDll,
                           pFI_2a->dwResourceId, pFI_2a->pDisplayName, pFI_2a->wLangId);
 
+                if (pName && i == 0) /* GetForm() appears only to work on a printer handle */
+                {
+                    res = GetFormA( hprinter, pFI_1a->pName, level, NULL, 0, &get_needed );
+                    ok( !res && GetLastError() == ERROR_INSUFFICIENT_BUFFER, "got %d gle %d\n", res, GetLastError() );
+                    if (get_needed <= sizeof(get_buffer))
+                    {
+                        res = GetFormA( hprinter, pFI_1a->pName, level, get_buffer, get_needed, &get_needed );
+                        ok( res, "got %d\n", res );
+                        ok( !strcmp( pFI_2a->pName, get_form->pName ), "name mismatch\n" );
+                        res = GetFormA( hprinter, pFI_1a->pName, level, get_buffer, get_needed - 1, &get_needed );
+                        ok( !res && GetLastError() == ERROR_INSUFFICIENT_BUFFER, "got %d gle %d\n", res, GetLastError() );
+                    }
+                }
                 /* offset pointer pFI_1a by 1*sizeof(FORM_INFO_2A) Bytes */
-                    pFI_2a ++;
+                pFI_2a++;
                 pFI_1a = (PFORM_INFO_1A)pFI_2a;
             }
         }
-        }
 
         SetLastError(0xdeadbeef);
         res = EnumFormsA(hprinter, level, buffer, cbBuf+1, &pcbNeeded, &pcReturned);