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split wxCharTypeBuffer<T> into wxScopedCharTypeBuffer<T> and wxCharTypeBuffer<T> -- the former is for transient data with validity limited to parent's lifetime, the latter is for permanent storage of string data (bug #9638)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59887 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
2009-03-27 15:33:55 +00:00
parent 36adcfc913
commit de4983f323
16 changed files with 635 additions and 348 deletions
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25
tests/strings/strings.cpp
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@@ -61,6 +61,7 @@ private:
CPPUNIT_TEST( ExplicitConversion );
CPPUNIT_TEST( IndexedAccess );
CPPUNIT_TEST( BeforeAndAfter );
CPPUNIT_TEST( ScopedBuffers );
CPPUNIT_TEST_SUITE_END();
void String();
@@ -93,6 +94,7 @@ private:
void ExplicitConversion();
void IndexedAccess();
void BeforeAndAfter();
void ScopedBuffers();
DECLARE_NO_COPY_CLASS(StringTestCase)
};
@@ -924,3 +926,26 @@ void StringTestCase::BeforeAndAfter()
CPPUNIT_ASSERT_EQUAL( L"\xe7a=l\xe0", s.AfterLast(';') );
}
void StringTestCase::ScopedBuffers()
{
// wxString relies on efficient buffers, verify they work as they should
const char *literal = "Hello World!";
// non-owned buffer points to the string passed to it
wxScopedCharBuffer sbuf = wxScopedCharBuffer::CreateNonOwned(literal);
CPPUNIT_ASSERT( sbuf.data() == literal );
// a copy of scoped non-owned buffer still points to the same string
wxScopedCharBuffer sbuf2(sbuf);
CPPUNIT_ASSERT( sbuf.data() == sbuf2.data() );
// but assigning it to wxCharBuffer makes a full copy
wxCharBuffer buf(sbuf);
CPPUNIT_ASSERT( buf.data() != literal );
CPPUNIT_ASSERT_EQUAL( literal, buf.data() );
wxCharBuffer buf2 = sbuf;
CPPUNIT_ASSERT( buf2.data() != literal );
CPPUNIT_ASSERT_EQUAL( literal, buf2.data() );
}