| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 137 of 338 | 59% | 16 of 24 | 33% | 14 | 19 | 33 | 82 | 2 | 7 |
| decode(ByteBuf) | | 66% | | 35% | 7 | 8 | 19 | 47 | 0 | 1 |
| fail() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| extractHeader(ByteBuffer) | | 78% | | 50% | 2 | 3 | 3 | 19 | 0 | 1 |
| decodeFlags(ProtocolVersion, int) | | 32% | | 25% | 2 | 3 | 1 | 4 | 0 | 1 |
| decode(ChannelHandlerContext, ByteBuf, List) | | 0% | | 0% | 2 | 2 | 5 | 5 | 1 | 1 |
| Envelope.Decoder() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 | |
| static {...} | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |