--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3rdparty/vmime/tests/parser/headerFieldTest.cpp	Tue Aug 17 11:19:54 2021 +0200
@@ -0,0 +1,104 @@
+//
+// 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"
+
+
+VMIME_TEST_SUITE_BEGIN(headerFieldTest)
+
+	VMIME_TEST_LIST_BEGIN
+		VMIME_TEST(testBadValueType)
+		VMIME_TEST(testValueOnNextLine)
+		VMIME_TEST(testStripSpacesAtEnd)
+		VMIME_TEST(testValueWithEmptyLine)
+	VMIME_TEST_LIST_END
+
+
+	void testBadValueType()
+	{
+		vmime::shared_ptr <vmime::headerFieldFactory> hfactory =
+			vmime::headerFieldFactory::getInstance();
+
+		// "To" header field accepts values of type "addressList"
+		vmime::shared_ptr <vmime::headerField> to = hfactory->create(vmime::fields::TO);
+		VASSERT_THROW("to",
+			to->setValue(vmime::mailbox("email@vmime.org")),
+			vmime::exceptions::bad_field_value_type);
+
+		// Unregistered header field accepts any value type
+		vmime::shared_ptr <vmime::headerField> custom = hfactory->create("X-MyCustomHeader");
+		VASSERT_NO_THROW("custom/1",
+			custom->setValue(vmime::mailbox("email@vmime.org")));
+		VASSERT_NO_THROW("custom/2",
+			custom->setValue(vmime::text("field value text")));
+	}
+
+	void testValueOnNextLine()
+	{
+		vmime::parsingContext ctx;
+
+		const vmime::string buffer = "Field: \r\n\tfield data";
+
+		vmime::shared_ptr <vmime::headerField> hfield =
+			vmime::headerField::parseNext(ctx, buffer, 0, buffer.size());
+
+		vmime::shared_ptr <vmime::text> hvalue =
+			hfield->getValue <vmime::text>();
+
+		VASSERT_EQ("Field name", "Field", hfield->getName());
+		VASSERT_EQ("Field value", "field data", hvalue->getWholeBuffer());
+	}
+
+	void testStripSpacesAtEnd()
+	{
+		vmime::parsingContext ctx;
+
+		const vmime::string buffer = "Field: \r\n\tfield data   ";
+
+		vmime::shared_ptr <vmime::headerField> hfield =
+			vmime::headerField::parseNext(ctx, buffer, 0, buffer.size());
+
+		vmime::shared_ptr <vmime::text> hvalue =
+			hfield->getValue <vmime::text>();
+
+		VASSERT_EQ("Field name", "Field", hfield->getName());
+		VASSERT_EQ("Field value", toHex("field data"), toHex(hvalue->getWholeBuffer()));
+	}
+
+	void testValueWithEmptyLine()
+	{
+		vmime::parsingContext ctx;
+
+		const vmime::string buffer = "Field: \r\n\tdata1\r\n\tdata2\r\n\t\r\n\tdata3";
+
+		vmime::shared_ptr <vmime::headerField> hfield =
+			vmime::headerField::parseNext(ctx, buffer, 0, buffer.size());
+
+		vmime::shared_ptr <vmime::text> hvalue =
+			hfield->getValue <vmime::text>();
+
+		VASSERT_EQ("Field name", "Field", hfield->getName());
+		VASSERT_EQ("Field value", "data1 data2 data3", hvalue->getWholeBuffer());
+	}
+
+VMIME_TEST_SUITE_END