1 files changed, 92 insertions, 0 deletions
diff --git a/sal/qa/rtl/oustringbuffer/test_oustringbuffer_assign.cxx b/sal/qa/rtl/oustringbuffer/test_oustringbuffer_assign.cxx
new file mode 100644
index 000000000..3c3f436ee
--- /dev/null
+++ b/sal/qa/rtl/oustringbuffer/test_oustringbuffer_assign.cxx
@@ -0,0 +1,92 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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 <string_view>
+
+#include <cppunit/TestFixture.h>
+#include <cppunit/TestAssert.h>
+#include <cppunit/extensions/HelperMacros.h>
+
+#include <o3tl/cppunittraitshelper.hxx>
+#include <rtl/ustrbuf.hxx>
+#include <rtl/ustring.hxx>
+
+namespace
+{
+class Test : public CppUnit::TestFixture
+{
+private:
+    void test()
+    {
+        OUStringBuffer b1;
+        OUString s1("123456789012345");
+        b1 = s1;
+        CPPUNIT_ASSERT_EQUAL(s1, b1.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b1.getCapacity());
+        OUString s2("abc");
+        b1 = s2;
+        CPPUNIT_ASSERT_EQUAL(s2, b1.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b1.getCapacity());
+        OUString s3("1234567890123456");
+        b1 = s3;
+        CPPUNIT_ASSERT_EQUAL(s3, b1.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(32), b1.getCapacity());
+        OUStringBuffer b2;
+        b2 = "123456789012345";
+        CPPUNIT_ASSERT_EQUAL(s1, b2.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b2.getCapacity());
+        b2 = "abc";
+        CPPUNIT_ASSERT_EQUAL(s2, b2.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b2.getCapacity());
+        b2 = "1234567890123456";
+        CPPUNIT_ASSERT_EQUAL(s3, b2.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(32), b2.getCapacity());
+        OUStringBuffer b3;
+        b3 = u"123456789012345";
+        CPPUNIT_ASSERT_EQUAL(s1, b3.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b3.getCapacity());
+        b3 = u"abc";
+        CPPUNIT_ASSERT_EQUAL(s2, b3.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b3.getCapacity());
+        b3 = u"1234567890123456";
+        CPPUNIT_ASSERT_EQUAL(s3, b3.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(32), b3.getCapacity());
+        OUStringBuffer b4;
+        b4 = OUStringLiteral(u"1") + "23456789012345";
+        CPPUNIT_ASSERT_EQUAL(s1, b4.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b4.getCapacity());
+        b4 = OUStringLiteral(u"a") + "bc";
+        CPPUNIT_ASSERT_EQUAL(s2, b4.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(16), b4.getCapacity());
+        b4 = OUStringLiteral(u"1") + "234567890123456";
+        CPPUNIT_ASSERT_EQUAL(s3, b4.toString());
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(32), b4.getCapacity());
+        b4 = OUStringChar('a');
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(1), b4.getLength());
+        CPPUNIT_ASSERT_EQUAL(u'a', b4.getStr()[0]);
+        CPPUNIT_ASSERT_EQUAL(u'\0', b4.getStr()[1]);
+        b4 = std::u16string_view(u"abc").substr(
+            0, 2); // avoid the string_view accidentally being NUL-terminated
+        CPPUNIT_ASSERT_EQUAL(sal_Int32(2), b4.getLength());
+        CPPUNIT_ASSERT_EQUAL(u'a', b4.getStr()[0]);
+        CPPUNIT_ASSERT_EQUAL(u'b', b4.getStr()[1]);
+        CPPUNIT_ASSERT_EQUAL(u'\0', b4.getStr()[2]);
+    }
+
+    CPPUNIT_TEST_SUITE(Test);
+    CPPUNIT_TEST(test);
+    CPPUNIT_TEST_SUITE_END();
+};
+}
+
+CPPUNIT_TEST_SUITE_REGISTRATION(Test);
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */