diff --git a/README.md b/README.md
index 6eabfc9db..9afa97503 100755
--- a/README.md
+++ b/README.md
@@ -152,6 +152,8 @@ Please select according to languages:
 
 ### V3 changes
 
+* v3.0, 2019-10-30, Cover protocol stack RTMP. 3.0.63
+* v3.0, 2019-10-23, Cover JSON codec. 3.0.62
 * v3.0, 2019-10-13, Use http://ossrs.net:8000 as homepage.
 * v3.0, 2019-10-10, Cover AMF0 codec. 3.0.61
 * <strong>v3.0, 2019-10-07, [3.0 alpha1(3.0.60)][r3.0a1] released. 107962 lines.</strong>
diff --git a/trunk/src/utest/srs_utest_protostack.cpp b/trunk/src/utest/srs_utest_protostack.cpp
index e9a2a47f4..f0f2cd200 100644
--- a/trunk/src/utest/srs_utest_protostack.cpp
+++ b/trunk/src/utest/srs_utest_protostack.cpp
@@ -34,8 +34,44 @@ using namespace std;
 #include <srs_protocol_amf0.hpp>
 #include <srs_rtmp_stack.hpp>
 #include <srs_service_http_conn.hpp>
+#include <srs_kernel_buffer.hpp>
 
-VOID TEST(ProtoStackTest, RTMPTest)
+class MockErrorPacket : public SrsPacket
 {
+protected:
+    virtual int get_size() {
+        return 1024;
+    }
+};
+
+VOID TEST(ProtoStackTest, PacketEncode)
+{
+    srs_error_t err;
+
+    int size;
+    char* payload;
+
+    if (true) {
+        MockErrorPacket pkt;
+        HELPER_EXPECT_FAILED(pkt.encode(size, payload));
+    }
+
+    if (true) {
+        MockErrorPacket pkt;
+        SrsBuffer b;
+        HELPER_EXPECT_FAILED(pkt.decode(&b));
+    }
+
+    if (true) {
+        SrsPacket pkt;
+        EXPECT_EQ(0, pkt.get_prefer_cid());
+        EXPECT_EQ(0, pkt.get_message_type());
+        EXPECT_EQ(0, pkt.get_size());
+    }
+
+    if (true) {
+        MockErrorPacket pkt;
+        EXPECT_EQ(1024, pkt.get_size());
+    }
 }