[PATCH 2/2] comctl32/tests: Add tests for NULL strings in edit control WM_GETTEXT message.

[Aida Jonikienė]

From: Aida Jonikienė

These pass on Windows: https://testbot.winehq.org/JobDetails.pl?Key=146845
---
 dlls/comctl32/tests/edit.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/dlls/comctl32/tests/edit.c b/dlls/comctl32/tests/edit.c
index bce0215ef19..12900667f01 100644
--- a/dlls/comctl32/tests/edit.c
+++ b/dlls/comctl32/tests/edit.c
@@ -1470,6 +1470,11 @@ static void test_edit_control_6(void)
     ok(ret == strlen(str), "Expected %s, got len %ld\n", str, ret);
     ok(!strcmp(buf, str), "Expected %s, got %s\n", str, buf);

+    ret = SendMessageA(hWnd, WM_GETTEXT, MAXLEN, (LPARAM)NULL);
+    ok(ret == 0, "Expected 0, got len %ld\n", ret);
+    ret = SendMessageA(hWnd, WM_GETTEXT, 0, (LPARAM)NULL);
+    ok(ret == 0, "Expected 0, got len %ld\n", ret);
+
     buf[0] = 0;
     ret = SendMessageA(hWnd, WM_DESTROY, 0, 0);
     todo_wine