From f3c148cd4adb3c4c5983549bdd44bafc5c851678 Mon Sep 17 00:00:00 2001
From: Vadim Zeitlin <vadim@wxwidgets.org>
Date: Tue, 30 Oct 2018 01:35:32 +0100
Subject: [PATCH] Verify that wxTextCtrl::ChangeValue("") doesn't generate
 events

Check that changing the value of an already empty control to empty
doesn't result in any events.

See #18264.
---
 tests/controls/textentrytest.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tests/controls/textentrytest.cpp b/tests/controls/textentrytest.cpp
index 96b121de84..5ae7c53179 100644
--- a/tests/controls/textentrytest.cpp
+++ b/tests/controls/textentrytest.cpp
@@ -83,6 +83,10 @@ void TextEntryTestCase::TextChangeEvents()
     entry->Clear();
     CPPUNIT_ASSERT_EQUAL( 1, updated.GetCount() );
     updated.Clear();
+
+    entry->ChangeValue("");
+    CPPUNIT_ASSERT_EQUAL( 0, updated.GetCount() );
+    updated.Clear();
 }
 
 void TextEntryTestCase::CheckStringSelection(const char *sel)