small changes in tests

json-tests/json/rlp/stream/list_of_empty_data.json

@@ -0,0 +1,22 @@
+{
+	"input":
+	[
+		{
+			"operation": "append_list",
+			"len": 3
+		},
+		{
+			"operation": "append",
+			"value": ""
+		},
+		{
+			"operation": "append",
+			"value": ""
+		},
+		{
+			"operation": "append",
+			"value": ""
+		}
+	],
+	"output": "0xc3808080"
+}

json-tests/json/rlp/stream/list_of_empty_data2.json

@@ -0,0 +1,19 @@
+{
+	"input":
+	[
+		{
+			"operation": "append_list",
+			"len": 3
+		},
+		{
+			"operation": "append_empty"
+		},
+		{
+			"operation": "append_empty"
+		},
+		{
+			"operation": "append_empty"
+		}
+	],
+	"output": "0xc3808080"
+}

src/rlp.rs

@@ -1335,6 +1335,20 @@ mod tests {
 							 0x80, 0x80, 0x80, 0x80, 0x80, 0x80]);
 	}
 
+	#[test]
+	fn rlp_stream_list4() {
+		let mut stream = RlpStream::new();
+		stream.append_list(17);
+		let v: Vec<u8> = vec![];
+		for _ in 0..17 {
+			stream.append(&v);
+		}
+		let out = stream.out();
+		assert_eq!(out, vec![0xd1, 0x80, 0x80, 0x80, 0x80, 0x80,
+							 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+							 0x80, 0x80, 0x80, 0x80, 0x80, 0x80]);
+	}
+
 	#[test]
 	fn rlp_stream_list3() {
 		let mut stream = RlpStream::new();
@@ -1503,7 +1517,7 @@ mod tests {
 	#[test]
 	fn test_rlp_json() {
 		println!("Json rlp test: ");
-		execute_tests_from_directory::<rlptest::RlpStreamTest, _>("json-tests/json/rlp/*.json", &mut | file, input, output | {
+		execute_tests_from_directory::<rlptest::RlpStreamTest, _>("json-tests/json/rlp/stream/*.json", &mut | file, input, output | {
 			println!("file: {}", file);
 
 			let mut stream = RlpStream::new();