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user32/tests: Add tests for EM_GETHANDLE.

This commit is contained in:
Detlef Riekenberg 2013-05-03 09:22:44 +02:00 committed by Alexandre Julliard
parent 40afb51a70
commit caf1bbba94
1 changed files with 116 additions and 0 deletions
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116
dlls/user32/tests/edit.c
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@ -2530,6 +2530,120 @@ static void test_dialogmode(void)
destroy_child_editcontrol(hwEdit);
}
static void test_EM_GETHANDLE(void)
{
static const char str0[] = "untouched";
static const char str1[] = "1111+1111+1111#";
static const char str2[] = "2222-2222-2222-2222#";
static const char str3[] = "3333*3333*3333*3333*3333#";
CHAR current[42];
HWND hEdit;
HLOCAL hmem;
HLOCAL hmem2;
HLOCAL halloc;
char *buffer;
int len;
int r;
trace("EDIT: EM_GETHANDLE\n");
/* EM_GETHANDLE is not supported for a single line edit control */
hEdit = create_editcontrol(WS_BORDER, 0);
ok(hEdit != NULL, "got %p (expected != NULL)\n", hEdit);
hmem = (HGLOBAL) SendMessage(hEdit, EM_GETHANDLE, 0, 0);
ok(hmem == NULL, "got %p (expected NULL)\n", hmem);
DestroyWindow(hEdit);
/* EM_GETHANDLE needs a multiline edit control */
hEdit = create_editcontrol(WS_BORDER | ES_MULTILINE, 0);
ok(hEdit != NULL, "got %p (expected != NULL)\n", hEdit);
/* set some text */
r = SendMessageA(hEdit, WM_SETTEXT, 0, (LPARAM)str1);
len = SendMessageA(hEdit, WM_GETTEXTLENGTH, 0, 0);
ok((r == 1) && (len == lstrlenA(str1)), "got %d and %d (expected 1 and %d)\n", r, len, lstrlenA(str1));
lstrcpyA(current, str0);
r = SendMessageA(hEdit, WM_GETTEXT, sizeof(current), (LPARAM)current);
ok((r == lstrlenA(str1)) && !lstrcmpA(current, str1),
"got %d and \"%s\" (expected %d and \"%s\")\n", r, current, lstrlenA(str1), str1);
hmem = (HGLOBAL) SendMessage(hEdit, EM_GETHANDLE, 0, 0);
ok(hmem != NULL, "got %p (expected != NULL)\n", hmem);
/* The buffer belongs to the app now. According to MSDN, the app has to LocalFree the
buffer, LocalAlloc a new buffer and pass it to the edit control with EM_SETHANDLE. */
buffer = LocalLock(hmem);
ok(buffer != NULL, "got %p (expected != NULL)\n", buffer);
len = lstrlenA(buffer);
ok((len == lstrlenA(str1)) && !lstrcmpA(buffer, str1),
"got %d and \"%s\" (expected %d and \"%s\")\n", len, buffer, lstrlenA(str1), str1);
LocalUnlock(hmem);
/* use LocalAlloc first to get a different handle */
halloc = LocalAlloc(LMEM_MOVEABLE, 42);
ok(halloc != NULL, "got %p (expected != NULL)\n", halloc);
/* prepare our new memory */
buffer = LocalLock(halloc);
ok(buffer != NULL, "got %p (expected != NULL)\n", buffer);
lstrcpyA(buffer, str2);
LocalUnlock(halloc);
/* LocalFree the old memory handle before EM_SETHANDLE the new handle */
LocalFree(hmem);
/* use LocalAlloc after the LocalFree to likely consume the handle */
hmem2 = LocalAlloc(LMEM_MOVEABLE, 42);
ok(hmem2 != NULL, "got %p (expected != NULL)\n", hmem2);
SendMessage(hEdit, EM_SETHANDLE, (WPARAM)halloc, 0);
len = SendMessageA(hEdit, WM_GETTEXTLENGTH, 0, 0);
ok(len == lstrlenA(str2), "got %d (expected %d)\n", len, lstrlenA(str2));
lstrcpyA(current, str0);
r = SendMessageA(hEdit, WM_GETTEXT, sizeof(current), (LPARAM)current);
ok((r == lstrlenA(str2)) && !lstrcmpA(current, str2),
"got %d and \"%s\" (expected %d and \"%s\")\n", r, current, lstrlenA(str2), str2);
/* set a different text */
r = SendMessageA(hEdit, WM_SETTEXT, 0, (LPARAM)str3);
len = SendMessageA(hEdit, WM_GETTEXTLENGTH, 0, 0);
ok((r == 1) && (len == lstrlenA(str3)), "got %d and %d (expected 1 and %d)\n", r, len, lstrlenA(str3));
lstrcpyA(current, str0);
r = SendMessageA(hEdit, WM_GETTEXT, sizeof(current), (LPARAM)current);
ok((r == lstrlenA(str3)) && !lstrcmpA(current, str3),
"got %d and \"%s\" (expected %d and \"%s\")\n", r, current, lstrlenA(str3), str3);
LocalFree(hmem2);
DestroyWindow(hEdit);
/* Some apps have bugs ... */
hEdit = create_editcontrol(WS_BORDER | ES_MULTILINE, 0);
/* set some text */
r = SendMessageA(hEdit, WM_SETTEXT, 0, (LPARAM)str1);
len = SendMessageA(hEdit, WM_GETTEXTLENGTH, 0, 0);
ok((r == 1) && (len == lstrlenA(str1)), "got %d and %d (expected 1 and %d)\n", r, len, lstrlenA(str1));
/* everything is normal upto EM_GETHANDLE */
hmem = (HGLOBAL) SendMessage(hEdit, EM_GETHANDLE, 0, 0);
/* Some messages still work while other messages fail.
After LocalFree the memory handle, messages can crash the app */
/* A buggy editor used EM_GETHANDLE twice */
hmem2 = (HGLOBAL) SendMessage(hEdit, EM_GETHANDLE, 0, 0);
ok(hmem2 == hmem, "got %p (expected %p)\n", hmem2, hmem);
/* Let the edit control free the memory handle */
SendMessage(hEdit, EM_SETHANDLE, (WPARAM)hmem2, 0);
DestroyWindow(hEdit);
}
START_TEST(edit)
{
BOOL b;
@ -2568,5 +2682,7 @@ START_TEST(edit)
else
win_skip("EndMenu is not available\n");
test_EM_GETHANDLE();
UnregisterWindowClasses();
}