1 files changed, 59 insertions, 0 deletions
diff --git a/trie/encoding_test.go b/trie/encoding_test.go
new file mode 100644
index 000000000..193c898f3
--- /dev/null
+++ b/trie/encoding_test.go
@@ -0,0 +1,59 @@
+package trie
+
+import (
+	checker "gopkg.in/check.v1"
+)
+
+type TrieEncodingSuite struct{}
+
+var _ = checker.Suite(&TrieEncodingSuite{})
+
+func (s *TrieEncodingSuite) TestCompactEncode(c *checker.C) {
+	// even compact encode
+	test1 := []byte{1, 2, 3, 4, 5}
+	res1 := CompactEncode(test1)
+	c.Assert(res1, checker.Equals, "\x11\x23\x45")
+
+	// odd compact encode
+	test2 := []byte{0, 1, 2, 3, 4, 5}
+	res2 := CompactEncode(test2)
+	c.Assert(res2, checker.Equals, "\x00\x01\x23\x45")
+
+	//odd terminated compact encode
+	test3 := []byte{0, 15, 1, 12, 11, 8 /*term*/, 16}
+	res3 := CompactEncode(test3)
+	c.Assert(res3, checker.Equals, "\x20\x0f\x1c\xb8")
+
+	// even terminated compact encode
+	test4 := []byte{15, 1, 12, 11, 8 /*term*/, 16}
+	res4 := CompactEncode(test4)
+	c.Assert(res4, checker.Equals, "\x3f\x1c\xb8")
+}
+
+func (s *TrieEncodingSuite) TestCompactHexDecode(c *checker.C) {
+	exp := []byte{7, 6, 6, 5, 7, 2, 6, 2, 16}
+	res := CompactHexDecode("verb")
+	c.Assert(res, checker.DeepEquals, exp)
+}
+
+func (s *TrieEncodingSuite) TestCompactDecode(c *checker.C) {
+	// odd compact decode
+	exp := []byte{1, 2, 3, 4, 5}
+	res := CompactDecode("\x11\x23\x45")
+	c.Assert(res, checker.DeepEquals, exp)
+
+	// even compact decode
+	exp = []byte{0, 1, 2, 3, 4, 5}
+	res = CompactDecode("\x00\x01\x23\x45")
+	c.Assert(res, checker.DeepEquals, exp)
+
+	// even terminated compact decode
+	exp = []byte{0, 15, 1, 12, 11, 8 /*term*/, 16}
+	res = CompactDecode("\x20\x0f\x1c\xb8")
+	c.Assert(res, checker.DeepEquals, exp)
+
+	// even terminated compact decode
+	exp = []byte{15, 1, 12, 11, 8 /*term*/, 16}
+	res = CompactDecode("\x3f\x1c\xb8")
+	c.Assert(res, checker.DeepEquals, exp)
+}