added unit test for some of wxTextCtrl methods and its events generation

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48943 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/controls/textctrltest.cpp

@@ -0,0 +1,148 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        tests/textctrl/textctrltest.cpp
+// Purpose:     wxTextCtrl unit test
+// Author:      Vadim Zeitlin
+// Created:     2007-09-25
+// RCS-ID:      $Id$
+// Copyright:   (c) 2007 Vadim Zeitlin <vadim@wxwidgets.org>
+///////////////////////////////////////////////////////////////////////////////
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "testprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+    #include "wx/app.h"
+    #include "wx/textctrl.h"
+#endif // WX_PRECOMP
+
+// ----------------------------------------------------------------------------
+// test class
+// ----------------------------------------------------------------------------
+
+class TextCtrlTestCase : public CppUnit::TestCase
+{
+public:
+    TextCtrlTestCase() { }
+
+    virtual void setUp();
+    virtual void tearDown();
+
+private:
+    CPPUNIT_TEST_SUITE( TextCtrlTestCase );
+        CPPUNIT_TEST( SetValue );
+        CPPUNIT_TEST( TextChangeEvents );
+    CPPUNIT_TEST_SUITE_END();
+
+    void SetValue();
+    void TextChangeEvents();
+
+    wxTextCtrl *m_text;
+    wxFrame *m_frame;
+
+    DECLARE_NO_COPY_CLASS(TextCtrlTestCase)
+};
+
+// register in the unnamed registry so that these tests are run by default
+CPPUNIT_TEST_SUITE_REGISTRATION( TextCtrlTestCase );
+
+// also include in it's own registry so that these tests can be run alone
+CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( TextCtrlTestCase, "TextCtrlTestCase" );
+
+// ----------------------------------------------------------------------------
+// test initialization
+// ----------------------------------------------------------------------------
+
+void TextCtrlTestCase::setUp()
+{
+    m_text = new wxTextCtrl(wxTheApp->GetTopWindow(), wxID_ANY);
+}
+
+void TextCtrlTestCase::tearDown()
+{
+    delete m_text;
+    m_text = NULL;
+}
+
+// ----------------------------------------------------------------------------
+// tests themselves
+// ----------------------------------------------------------------------------
+
+void TextCtrlTestCase::SetValue()
+{
+    CPPUNIT_ASSERT( m_text->IsEmpty() );
+
+    m_text->SetValue("foo");
+    WX_ASSERT_STR_EQUAL( "foo", m_text->GetValue() );
+
+    m_text->SetValue("");
+    CPPUNIT_ASSERT( m_text->IsEmpty() );
+
+    m_text->SetValue("hi");
+    WX_ASSERT_STR_EQUAL( "hi", m_text->GetValue() );
+
+    m_text->SetValue("bye");
+    WX_ASSERT_STR_EQUAL( "bye", m_text->GetValue() );
+}
+
+void TextCtrlTestCase::TextChangeEvents()
+{
+    class TextTestEventHandler : public wxEvtHandler
+    {
+    public:
+        TextTestEventHandler() { m_events = 0; }
+
+        // calling this automatically resets the events counter
+        int GetEvents()
+        {
+            const int events = m_events;
+            m_events = 0;
+            return events;
+        }
+
+        void OnText(wxCommandEvent& WXUNUSED(event)) { m_events++; }
+
+    private:
+        int m_events;
+    } handler;
+
+    m_text->Connect(wxEVT_COMMAND_TEXT_UPDATED,
+                    wxCommandEventHandler(TextTestEventHandler::OnText),
+                    NULL,
+                    &handler);
+
+    // notice that SetValue() generates an event even if the text didn't change
+    m_text->SetValue("");
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+
+    m_text->SetValue("foo");
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+
+    m_text->SetValue("foo");
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+
+    m_text->ChangeValue("bar");
+    CPPUNIT_ASSERT_EQUAL( 0, handler.GetEvents() );
+
+    m_text->AppendText("bar");
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+
+    m_text->Replace(3, 6, "baz");
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+
+    m_text->Remove(0, 3);
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+
+    m_text->WriteText("foo");
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+
+    m_text->Clear();
+    CPPUNIT_ASSERT_EQUAL( 1, handler.GetEvents() );
+}
+