1 files changed, 87 insertions, 0 deletions
diff --git a/test/libdevcore/CommonData.cpp b/test/libdevcore/CommonData.cpp
new file mode 100644
index 00000000..2020ddb0
--- /dev/null
+++ b/test/libdevcore/CommonData.cpp
@@ -0,0 +1,87 @@
+/*
+	This file is part of solidity.
+
+	solidity 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.
+
+	solidity 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 solidity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * Unit tests for the StringUtils routines.
+ */
+
+
+#include <libdevcore/CommonData.h>
+#include <libdevcore/FixedHash.h>
+#include <libsolidity/ast/Types.h> // for IntegerType
+
+#include <test/Options.h>
+
+using namespace std;
+using namespace dev::solidity;
+
+namespace dev
+{
+namespace test
+{
+
+BOOST_AUTO_TEST_SUITE(CommonData)
+
+BOOST_AUTO_TEST_CASE(test_to_hex)
+{
+	BOOST_CHECK_EQUAL(toHex(fromHex("FF"), 2, HexPrefix::DontAdd,  HexCase::Lower), "ff");
+}
+
+BOOST_AUTO_TEST_CASE(test_format_number)
+{
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x8000000)), "0x08000000");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x80000000)), "0x80000000");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x800000000)), "0x0800000000");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x8000000000)), "0x8000000000");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x80000000000)), "0x080000000000");
+
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x7ffffff)), "0x07ffffff");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x7fffffff)), "0x7fffffff");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x7ffffffff)), "0x07ffffffff");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x7fffffffff)), "0x7fffffffff");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x7ffffffffff)), "0x07ffffffffff");
+
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x88000000)), "0x88000000");
+	BOOST_CHECK_EQUAL(formatNumber(u256(0x8888888888000000)), "0x8888888888000000");
+
+	u256 b = 0;
+	for (int i = 0; i < 32; i++)
+	{
+		b <<= 8;
+		b |= 0x55;
+	}
+	u256 c = u256(FixedHash<32>(
+		fromHex("0xabcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789")
+	));
+	u256 d = u256(0xAAAAaaaaAAAAaaaa) << 192 |
+		u256(0xFFFFffffFFFFffff) << 128 |
+		u256(0xFFFFffffFFFFffff) << 64 |
+		u256(0xFFFFffffFFFFffff);
+	BOOST_CHECK_EQUAL(formatNumber(b), "0x5555555555555555555555555555555555555555555555555555555555555555");
+	BOOST_CHECK_EQUAL(formatNumber(c), "0xabcdef0123456789abcdef0123456789abcdef0123456789abcdef0123456789");
+	BOOST_CHECK_EQUAL(formatNumber(d), "0xaaaaaaaaaaaaaaaaffffffffffffffffffffffffffffffffffffffffffffffff");
+
+	BOOST_CHECK_EQUAL(formatNumber(IntegerType(256).minValue()), "0");
+	BOOST_CHECK_EQUAL(
+		formatNumber(IntegerType(256).maxValue()),
+		"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+	);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
+
+}
+}