--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3rdparty/vmime/tests/utility/outputStreamStringAdapterTest.cpp	Tue Aug 17 11:19:54 2021 +0200
@@ -0,0 +1,85 @@
+//
+// VMime library (http://www.vmime.org)
+// Copyright (C) 2002-2013 Vincent Richard <vincent@vmime.org>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 3 of
+// the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// Linking this library statically or dynamically with other modules is making
+// a combined work based on this library.  Thus, the terms and conditions of
+// the GNU General Public License cover the whole combination.
+//
+
+#include "tests/testUtils.hpp"
+
+#include "vmime/utility/outputStreamStringAdapter.hpp"
+
+
+VMIME_TEST_SUITE_BEGIN(outputStreamStringAdapterTest)
+
+	VMIME_TEST_LIST_BEGIN
+		VMIME_TEST(testWrite)
+		VMIME_TEST(testWriteBinary)
+		VMIME_TEST(testWriteCRLF)
+	VMIME_TEST_LIST_END
+
+
+	void testWrite()
+	{
+		vmime::string str("initial data");
+
+		vmime::utility::outputStreamStringAdapter stream(str);
+		stream << "additional data";
+		stream.flush();
+
+		VASSERT_EQ("Write 1 len", 27, str.length());
+		VASSERT_EQ("Write 1 data", "initial dataadditional data", str);
+
+		stream.write("more data");
+
+		VASSERT_EQ("Write 2 len", 36, str.length());
+		VASSERT_EQ("Write 2 data", "initial dataadditional datamore data", str);
+	}
+
+	void testWriteBinary()
+	{
+		const vmime::byte_t binaryData[] =
+			"\xc5\x9a\xc3\xb8\xc9\xb1\xc9\x9b\x20\xc9\x93\xc9\xa8\xc9\xb2\xc9"
+			"\x91\xc5\x95\xc9\xa3\x20\xc9\x96\xc9\x90\xca\x88\xc9\x92";
+
+		vmime::string str;
+
+		vmime::utility::outputStreamStringAdapter stream(str);
+		stream.write(binaryData, sizeof(binaryData));
+		stream.flush();
+
+		VASSERT_EQ("Write", 0, memcmp(binaryData, str.data(), sizeof(binaryData)));
+	}
+
+	void testWriteCRLF()
+	{
+		vmime::string str;
+
+		vmime::utility::outputStreamStringAdapter stream(str);
+		stream << "some data";
+		stream.flush();
+
+		stream << "\nmore\r\ndata\r";
+		stream.flush();
+
+		VASSERT_EQ("Write", "some data\nmore\r\ndata\r", str);
+	}
+
+VMIME_TEST_SUITE_END
+