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-rw-r--r--sal/qa/rtl/strings/nonconstarray.cxx94
1 files changed, 94 insertions, 0 deletions
diff --git a/sal/qa/rtl/strings/nonconstarray.cxx b/sal/qa/rtl/strings/nonconstarray.cxx
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+++ b/sal/qa/rtl/strings/nonconstarray.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include <sal/config.h>
+
+#include <cppunit/TestAssert.h>
+#include <cppunit/TestFixture.h>
+#include <cppunit/extensions/HelperMacros.h>
+#include <rtl/string.hxx>
+#include <rtl/ustring.hxx>
+
+namespace
+{
+class Test : public CppUnit::TestFixture
+{
+private:
+ void testOString()
+ {
+ struct S
+ {
+ char a[4];
+ };
+ S s{ "x\0y" };
+ CPPUNIT_ASSERT_EQUAL(sal_Int32(1), OString(s.a).getLength());
+ // Ideally, the below would work the same as the above. However, the const reference makes
+ // the ConstCharArrayDetector instead of the NonConstCharArrayDetector kick in, so that the
+ // call to OString(r.a) would fire the ConstCharArrayDetector<T>::isValid assert (and in
+ // NDEBUG builds the CPPUNIT_ASSERT_EQUAL would fail with 3 != 1):
+ if ((false))
+ {
+ S const& r = s;
+ CPPUNIT_ASSERT_EQUAL(sal_Int32(1), OString(r.a).getLength());
+ }
+ }
+
+ void testOUStringChar()
+ {
+ struct S
+ {
+ char a[4];
+ };
+ S s{ "x\0y" };
+ // This would fail to compile, as there is no OUString ctor taking a
+ // NonConstCharArrayDetector char array:
+#if 0
+ CPPUNIT_ASSERT_EQUAL(sal_Int32(1), OUString(s.a).getLength());
+#endif
+ // Ideally, the below would fail to compile the same as the above. However, the const
+ // reference makes the ConstCharArrayDetector instead of the NonConstCharArrayDetector kick
+ // in, so that the call to OUString(r.a) would fire the ConstCharArrayDetector<T>::isValid
+ // assert (and in NDEBUG builds the CPPUNIT_ASSERT_EQUAL would fail with 3 != 1):
+ if ((false))
+ {
+ S const& r = s;
+ CPPUNIT_ASSERT_EQUAL(sal_Int32(1), OUString(r.a).getLength());
+ }
+ }
+
+ void testOUStringChar16t()
+ {
+ struct S
+ {
+ char16_t a[4];
+ };
+ S s{ u"x\0y" };
+ CPPUNIT_ASSERT_EQUAL(sal_Int32(1), OUString(s.a).getLength());
+ // Ideally, the below would work the same as the above. However, the const reference makes
+ // the ConstCharArrayDetector instead of the NonConstCharArrayDetector kick in, so that the
+ // call to OUString(r.a) would fire the ConstCharArrayDetector<T>::isValid assert (and in
+ // NDEBUG builds the CPPUNIT_ASSERT_EQUAL would fail with 3 != 1)::
+ if ((false))
+ {
+ S const& r = s;
+ CPPUNIT_ASSERT_EQUAL(sal_Int32(1), OUString(r.a).getLength());
+ }
+ }
+
+ CPPUNIT_TEST_SUITE(Test);
+ CPPUNIT_TEST(testOString);
+ CPPUNIT_TEST(testOUStringChar);
+ CPPUNIT_TEST(testOUStringChar16t);
+ CPPUNIT_TEST_SUITE_END();
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(Test);
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */