comctl32/tests: Test that buddy control is resized when updown receives UDM_SETBUDDY.

[Anton Baskanov]

---
 dlls/comctl32/tests/updown.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/dlls/comctl32/tests/updown.c b/dlls/comctl32/tests/updown.c
index cc06f65..a2381ca 100644
--- a/dlls/comctl32/tests/updown.c
+++ b/dlls/comctl32/tests/updown.c
@@ -520,6 +520,8 @@ static void test_updown_buddy(void)
     HWND updown, buddyReturn, buddy;
     WNDPROC proc;
     DWORD style;
+    RECT r;
+    RECT r2;
 
     updown = create_updown_control(UDS_ALIGNRIGHT, g_edit);
 
@@ -566,6 +568,34 @@ static void test_updown_buddy(void)
     DestroyWindow(updown);
 
     DestroyWindow(buddy);
+
+    buddy = CreateWindowExA(0, WC_EDITA, NULL, WS_CHILD | WS_BORDER | WS_VISIBLE,
+            0, 0, 100, 100, parent_wnd, NULL, GetModuleHandleA(NULL), NULL);
+    ok(buddy != NULL, "Failed to create edit control\n");
+
+    updown = CreateWindowA (UPDOWN_CLASSA, 0, WS_CHILD | WS_BORDER | WS_VISIBLE | UDS_ALIGNRIGHT,
+            0, 0, 20, 20, parent_wnd, (HMENU)(DWORD_PTR)1, GetModuleHandleA(NULL), 0);
+    ok(updown != NULL, "Failed to create updown control\n");
+
+    /* attach the buddy */
+    SendMessageA(updown, UDM_SETBUDDY, (WPARAM)buddy, 0);
+
+    /* check that the edit was resized */
+    r.right = 0x1234ABCD;
+    GetClientRect(buddy, &r);
+    ok(r.right < 100, "Expected width < 100, got %d\n", r.right);
+
+    /* attach the same buddy again */
+    SendMessageA(updown, UDM_SETBUDDY, (WPARAM)buddy, 0);
+
+    /* check that the edit was resized further */
+    r2.right = 0x1234ABCD;
+    GetClientRect(buddy, &r2);
+    ok(r2.right < r.right, "Expected width < %d, got %d\n", r.right, r2.right);
+
+    DestroyWindow(updown);
+
+    DestroyWindow(buddy);
 }
 
 static void test_updown_base(void)
-- 
2.1.0