Tests: Modularize unit testing

Split unit tests into separate files under src/unittest/
Give better unittest diagnostics
Clean up some code

1 files changed, 182 insertions, 0 deletions

diff --git a/src/unittest/test_serialization.cpp b/src/unittest/test_serialization.cpp
new file mode 100644
index 000000000..857b9f0a5
--- /dev/null
+++ b/src/unittest/test_serialization.cpp
@@ -0,0 +1,182 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser 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.
+*/
+
+#include "test.h"
+
+#include "util/string.h"
+#include "util/serialize.h"
+
+class TestSerialization : public TestBase {
+public:
+	TestSerialization() { TestManager::registerTestModule(this); }
+	const char *getName() { return "TestSerialization"; }
+
+	void runTests(IGameDef *gamedef);
+	void buildTestStrings();
+
+	void testSerializeString();
+	void testSerializeWideString();
+	void testSerializeLongString();
+	void testSerializeJsonString();
+
+	std::string teststring2;
+	std::wstring teststring2_w;
+	std::string teststring2_w_encoded;
+};
+
+static TestSerialization g_test_instance;
+
+void TestSerialization::runTests(IGameDef *gamedef)
+{
+	buildTestStrings();
+
+	TEST(testSerializeString);
+	TEST(testSerializeWideString);
+	TEST(testSerializeLongString);
+	TEST(testSerializeJsonString);
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+// To be used like this:
+//   mkstr("Some\0string\0with\0embedded\0nuls")
+// since std::string("...") doesn't work as expected in that case.
+template<size_t N> std::string mkstr(const char (&s)[N])
+{
+	return std::string(s, N - 1);
+}
+
+void TestSerialization::buildTestStrings()
+{
+	std::ostringstream tmp_os;
+	std::wostringstream tmp_os_w;
+	std::ostringstream tmp_os_w_encoded;
+	for (int i = 0; i < 256; i++) {
+		tmp_os << (char)i;
+		tmp_os_w << (wchar_t)i;
+		tmp_os_w_encoded << (char)0 << (char)i;
+	}
+	teststring2 = tmp_os.str();
+	teststring2_w = tmp_os_w.str();
+	teststring2_w_encoded = tmp_os_w_encoded.str();
+}
+
+void TestSerialization::testSerializeString()
+{
+	// Test blank string
+	UASSERT(serializeString("Hello world!") == mkstr("\0\14Hello world!"));
+
+	// Test basic string
+	UASSERT(serializeString("") == mkstr("\0\0"));
+
+	// Test character range
+	UASSERT(serializeString(teststring2) == mkstr("\1\0") + teststring2);
+
+	// Test deserialize
+	std::istringstream is(serializeString(teststring2), std::ios::binary);
+	UASSERT(deSerializeString(is) == teststring2);
+	UASSERT(!is.eof());
+	is.get();
+	UASSERT(is.eof());
+}
+
+void TestSerialization::testSerializeWideString()
+{
+	// Test blank string
+	UASSERT(serializeWideString(L"") == mkstr("\0\0"));
+
+	// Test basic string
+	UASSERT(serializeWideString(narrow_to_wide("Hello world!")) ==
+		mkstr("\0\14\0H\0e\0l\0l\0o\0 \0w\0o\0r\0l\0d\0!"));
+
+	// Test character range
+	UASSERT(serializeWideString(teststring2_w) ==
+		mkstr("\1\0") + teststring2_w_encoded);
+
+	// Test deserialize
+	std::istringstream is(serializeWideString(teststring2_w), std::ios::binary);
+	UASSERT(deSerializeWideString(is) == teststring2_w);
+	UASSERT(!is.eof());
+	is.get();
+	UASSERT(is.eof());
+}
+
+void TestSerialization::testSerializeLongString()
+{
+	// Test blank string
+	UASSERT(serializeLongString("") == mkstr("\0\0\0\0"));
+
+	// Test basic string
+	UASSERT(serializeLongString("Hello world!") == mkstr("\0\0\0\14Hello world!"));
+
+	// Test character range
+	UASSERT(serializeLongString(teststring2) == mkstr("\0\0\1\0") + teststring2);
+
+	// Test deserialize
+	std::istringstream is(serializeLongString(teststring2), std::ios::binary);
+	UASSERT(deSerializeLongString(is) == teststring2);
+	UASSERT(!is.eof());
+	is.get();
+	UASSERT(is.eof());
+}
+
+void TestSerialization::testSerializeJsonString()
+{
+	// Test blank string
+	UASSERT(serializeJsonString("") == "\"\"");
+
+	// Test basic string
+	UASSERT(serializeJsonString("Hello world!") == "\"Hello world!\"");
+
+	// MSVC fails when directly using "\\\\"
+	std::string backslash = "\\";
+	UASSERT(serializeJsonString(teststring2) ==
+		mkstr("\"") +
+		"\\u0000\\u0001\\u0002\\u0003\\u0004\\u0005\\u0006\\u0007" +
+		"\\b\\t\\n\\u000b\\f\\r\\u000e\\u000f" +
+		"\\u0010\\u0011\\u0012\\u0013\\u0014\\u0015\\u0016\\u0017" +
+		"\\u0018\\u0019\\u001a\\u001b\\u001c\\u001d\\u001e\\u001f" +
+		" !\\\"" + teststring2.substr(0x23, 0x2f-0x23) +
+		"\\/" + teststring2.substr(0x30, 0x5c-0x30) +
+		backslash + backslash + teststring2.substr(0x5d, 0x7f-0x5d) + "\\u007f" +
+		"\\u0080\\u0081\\u0082\\u0083\\u0084\\u0085\\u0086\\u0087" +
+		"\\u0088\\u0089\\u008a\\u008b\\u008c\\u008d\\u008e\\u008f" +
+		"\\u0090\\u0091\\u0092\\u0093\\u0094\\u0095\\u0096\\u0097" +
+		"\\u0098\\u0099\\u009a\\u009b\\u009c\\u009d\\u009e\\u009f" +
+		"\\u00a0\\u00a1\\u00a2\\u00a3\\u00a4\\u00a5\\u00a6\\u00a7" +
+		"\\u00a8\\u00a9\\u00aa\\u00ab\\u00ac\\u00ad\\u00ae\\u00af" +
+		"\\u00b0\\u00b1\\u00b2\\u00b3\\u00b4\\u00b5\\u00b6\\u00b7" +
+		"\\u00b8\\u00b9\\u00ba\\u00bb\\u00bc\\u00bd\\u00be\\u00bf" +
+		"\\u00c0\\u00c1\\u00c2\\u00c3\\u00c4\\u00c5\\u00c6\\u00c7" +
+		"\\u00c8\\u00c9\\u00ca\\u00cb\\u00cc\\u00cd\\u00ce\\u00cf" +
+		"\\u00d0\\u00d1\\u00d2\\u00d3\\u00d4\\u00d5\\u00d6\\u00d7" +
+		"\\u00d8\\u00d9\\u00da\\u00db\\u00dc\\u00dd\\u00de\\u00df" +
+		"\\u00e0\\u00e1\\u00e2\\u00e3\\u00e4\\u00e5\\u00e6\\u00e7" +
+		"\\u00e8\\u00e9\\u00ea\\u00eb\\u00ec\\u00ed\\u00ee\\u00ef" +
+		"\\u00f0\\u00f1\\u00f2\\u00f3\\u00f4\\u00f5\\u00f6\\u00f7" +
+		"\\u00f8\\u00f9\\u00fa\\u00fb\\u00fc\\u00fd\\u00fe\\u00ff" +
+		"\"");
+
+	// Test deserialize
+	std::istringstream is(serializeJsonString(teststring2), std::ios::binary);
+	UASSERT(deSerializeJsonString(is) == teststring2);
+	UASSERT(!is.eof());
+	is.get();
+	UASSERT(is.eof());
+}