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user32/tests: Add tests for LB_INITSTORAGE.

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Signed-off-by: Gabriel Ivăncescu <gabrielopcode@gmail.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Gabriel Ivăncescu 2019-02-08 13:17:22 +02:00 committed by Alexandre Julliard
parent 0dd9eaf4e3
commit 0d19628ef5
1 changed files with 64 additions and 0 deletions
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64
dlls/user32/tests/listbox.c
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@ -1824,6 +1824,69 @@ todo_wine
DestroyWindow(parent);
}
static void test_init_storage( void )
{
static const DWORD styles[] =
{
LBS_HASSTRINGS,
LBS_NODATA | LBS_OWNERDRAWFIXED,
};
HWND parent, listbox;
LONG ret, items_size;
int i, j;
parent = create_parent();
for (i = 0; i < ARRAY_SIZE(styles); i++)
{
listbox = CreateWindowA("listbox", "TestList", styles[i] | WS_CHILD,
0, 0, 100, 100, parent, (HMENU)1, NULL, 0);
items_size = SendMessageA(listbox, LB_INITSTORAGE, 100, 0);
ok(items_size >= 100, "expected at least 100, got %d\n", items_size);
ret = SendMessageA(listbox, LB_INITSTORAGE, 0, 0);
ok(ret == items_size, "expected %d, got %d\n", items_size, ret);
/* it doesn't grow since the space was already reserved */
ret = SendMessageA(listbox, LB_INITSTORAGE, items_size, 0);
ok(ret == items_size, "expected %d, got %d\n", items_size, ret);
/* it doesn't shrink the reserved space */
ret = SendMessageA(listbox, LB_INITSTORAGE, 42, 0);
ok(ret == items_size, "expected %d, got %d\n", items_size, ret);
/* now populate almost all of it so it's not reserved anymore */
if (styles[i] & LBS_NODATA)
{
ret = SendMessageA(listbox, LB_SETCOUNT, items_size - 1, 0);
ok(ret == 0, "unexpected return value %d\n", ret);
}
else
{
for (j = 0; j < items_size - 1; j++)
{
ret = SendMessageA(listbox, LB_INSERTSTRING, -1, (LPARAM)"");
ok(ret == j, "expected %d, got %d\n", j, ret);
}
}
/* we still have one more reserved slot, so it doesn't grow yet */
ret = SendMessageA(listbox, LB_INITSTORAGE, 1, 0);
ok(ret == items_size, "expected %d, got %d\n", items_size, ret);
/* fill the slot and check again, it should grow this time */
ret = SendMessageA(listbox, LB_INSERTSTRING, -1, (LPARAM)"");
ok(ret == items_size - 1, "expected %d, got %d\n", items_size - 1, ret);
ret = SendMessageA(listbox, LB_INITSTORAGE, 0, 0);
ok(ret == items_size, "expected %d, got %d\n", items_size, ret);
ret = SendMessageA(listbox, LB_INITSTORAGE, 1, 0);
ok(ret > items_size, "expected it to grow past %d, got %d\n", items_size, ret);
DestroyWindow(listbox);
}
DestroyWindow(parent);
}
static void test_missing_lbuttonup( void )
{
HWND listbox, parent, capture;
@ -2251,6 +2314,7 @@ START_TEST(listbox)
test_listbox_LB_DIR();
test_listbox_dlgdir();
test_set_count();
test_init_storage();
test_GetListBoxInfo();
test_missing_lbuttonup();
test_extents();