Minor fixes

test/test_buffer.cpp

@@ -223,7 +223,7 @@ TEST_F(CRcvBufferReadMsg, OnePacketGap)
 #if ENABLE_NEW_RCVBUFFER // Expected behavior
     EXPECT_FALSE(hasAvailablePackets());
     EXPECT_FALSE(rcv_buffer.isRcvDataReady());
-#else // Wron behavior (BUG)
+#else // Wrong behavior (BUG)
     EXPECT_TRUE(hasAvailablePackets());
     EXPECT_TRUE(rcv_buffer.isRcvDataReady());
 #endif
@@ -312,8 +312,10 @@ TEST_F(CRcvBufferReadMsg, AddData)
     }
 
     // Add packet to the position of oackets already read.
-    // Can't check, as negative offset is an error not handled by the receiver buffer.
-    //EXPECT_EQ(addPacket(m_init_seqno), -1);
+    // Can't check the old buffer, as it does not handle a negative offset.
+#if ENABLE_NEW_RCVBUFFER
+    EXPECT_EQ(addPacket(m_init_seqno), -2);
+#endif
 
     // Add packet to a non-empty position.
     EXPECT_EQ(addPacket(CSeqNo::incseq(m_init_seqno, ack_pkts)), -1);