c2e18d75e5
Due to a bug in MSVC handling of __VA_ARGS__ (see https://connect.microsoft.com/VisualStudio/feedback/details/380090/variadic-macro-replacement) wxCALL_FOR_EACH() didn't work correctly as long as more than two arguments were used with it. Work around the bug by protecting __VA_ARGS__ from being incorrectly passed as a single token to the macro being called on every step: this was already done for wxCALL_FOR_EACH itself with wxCALL_FOR_EACH_, but we need to do it for all the helper macros too. Also add a test checking that this does, actually, work. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77689 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
153 lines
3.7 KiB
C++
153 lines
3.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/misc/misctests.cpp
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// Purpose: test miscellaneous stuff
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// Author: Peter Most, Vadim Zeitlin
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// Created: 2008-07-10
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// Copyright: (c) 2008 Peter Most
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// (c) 2009 Vadim Zeitlin
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///////////////////////////////////////////////////////////////////////////////
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "testprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/defs.h"
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// just some classes using wxRTTI for wxStaticCast() test
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#include "wx/tarstrm.h"
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#include "wx/zipstrm.h"
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// ----------------------------------------------------------------------------
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// test class
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// ----------------------------------------------------------------------------
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class MiscTestCase : public CppUnit::TestCase
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{
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public:
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MiscTestCase() { }
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private:
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CPPUNIT_TEST_SUITE( MiscTestCase );
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CPPUNIT_TEST( Assert );
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#ifdef HAVE_VARIADIC_MACROS
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CPPUNIT_TEST( CallForEach );
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#endif // HAVE_VARIADIC_MACROS
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CPPUNIT_TEST( Delete );
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CPPUNIT_TEST( StaticCast );
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CPPUNIT_TEST_SUITE_END();
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void Assert();
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void CallForEach();
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void Delete();
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void StaticCast();
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DECLARE_NO_COPY_CLASS(MiscTestCase)
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};
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// register in the unnamed registry so that these tests are run by default
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CPPUNIT_TEST_SUITE_REGISTRATION( MiscTestCase );
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// also include in its own registry so that these tests can be run alone
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CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( MiscTestCase, "MiscTestCase" );
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namespace
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{
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bool AssertIfOdd(int n)
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{
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wxCHECK_MSG( !(n % 2), false, "parameter must be even" );
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return true;
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}
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} // anonymous namespace
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void MiscTestCase::Assert()
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{
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AssertIfOdd(0);
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WX_ASSERT_FAILS_WITH_ASSERT(AssertIfOdd(1));
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// doesn't fail any more
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wxAssertHandler_t oldHandler = wxSetAssertHandler(NULL);
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AssertIfOdd(17);
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wxSetAssertHandler(oldHandler);
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}
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#ifdef HAVE_VARIADIC_MACROS
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void MiscTestCase::CallForEach()
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{
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#define MY_MACRO(pos, str) s += str;
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wxString s;
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wxCALL_FOR_EACH(MY_MACRO, "foo", "bar", "baz");
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CPPUNIT_ASSERT_EQUAL( "foobarbaz", s );
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#undef MY_MACRO
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}
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#endif // HAVE_VARIADIC_MACROS
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void MiscTestCase::Delete()
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{
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// Allocate some arbitrary memory to get a valid pointer:
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long *pointer = new long;
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CPPUNIT_ASSERT( pointer != NULL );
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// Check that wxDELETE sets the pointer to NULL:
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wxDELETE( pointer );
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CPPUNIT_ASSERT( pointer == NULL );
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// Allocate some arbitrary array to get a valid pointer:
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long *array = new long[ 3 ];
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CPPUNIT_ASSERT( array != NULL );
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// Check that wxDELETEA sets the pointer to NULL:
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wxDELETE( array );
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CPPUNIT_ASSERT( array == NULL );
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// this results in compilation error, as it should
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#if 0
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struct SomeUnknownStruct *p = NULL;
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wxDELETE(p);
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#endif
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}
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namespace
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{
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// helper function used just to avoid warnings about value computed not being
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// used in WX_ASSERT_FAILS_WITH_ASSERT() in StaticCast() below
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bool IsNull(void *p)
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{
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return p == NULL;
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}
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} // anonymous namespace
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void MiscTestCase::StaticCast()
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{
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#if wxUSE_TARSTREAM
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wxTarEntry tarEntry;
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CPPUNIT_ASSERT( wxStaticCast(&tarEntry, wxArchiveEntry) );
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wxArchiveEntry *entry = &tarEntry;
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CPPUNIT_ASSERT( wxStaticCast(entry, wxTarEntry) );
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#if wxUSE_ZIPSTREAM
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wxZipEntry zipEntry;
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entry = &zipEntry;
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CPPUNIT_ASSERT( wxStaticCast(entry, wxZipEntry) );
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WX_ASSERT_FAILS_WITH_ASSERT( IsNull(wxStaticCast(&zipEntry, wxTarEntry)) );
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#endif // wxUSE_ZIPSTREAM
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WX_ASSERT_FAILS_WITH_ASSERT( IsNull(wxStaticCast(entry, wxTarEntry)) );
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#endif // wxUSE_TARSTREAM
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}
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