# Test Coverage and Quality Audit

## 1. Coverage Analysis

### Line Coverage

- **Overall Line Coverage: 44.4%**

The overall test coverage for the project is **44.4%**, which is below the recommended minimum of 80%. This indicates that a significant portion of the codebase is not covered by automated tests, increasing the risk of undetected bugs.

### Untested Code

The following files and functions have **0% test coverage** and should be prioritized for testing:

- **`pkg/node/controller.go`**
  - `NewController`
  - `handleResponse`
  - `sendRequest`
  - `GetRemoteStats`
  - `StartRemoteMiner`
  - `StopRemoteMiner`
  - `GetRemoteLogs`
  - `GetAllStats`
  - `PingPeer`
  - `ConnectToPeer`
  - `DisconnectFromPeer`

- **`pkg/node/transport.go`**
  - `IsDuplicate`
  - `Mark`
  - `Cleanup`
  - `NewPeerRateLimiter`
  - `Allow`
  - `Start`
  - `Stop`
  - `OnMessage`
  - `Connect`
  - `Send`
  - `Broadcast`
  - `GetConnection`
  - `handleWSUpgrade`
  - `performHandshake`
  - `readLoop`
  - `keepalive`
  - `removeConnection`
  - `Close`
  - `GracefulClose`
  - `encryptMessage`
  - `decryptMessage`
  - `ConnectedPeers`

- **`pkg/mining/xmrig.go`**
  - `Uninstall`

- **`pkg/node/dispatcher.go`**
  - `DispatchUEPS`

- **`pkg/node/identity.go`**
  - `handleHandshake`
  - `handleComputeRequest`
  - `enterRehabMode`
  - `handleApplicationData`

## 2. Test Quality

### Test Independence

The existing tests appear to be isolated and do not share mutable state. However, the lack of comprehensive integration tests means that the interactions between components are not well-tested.

### Test Clarity

The test names are generally descriptive, but they could be improved by following a more consistent naming convention. The Arrange-Act-Assert pattern is not consistently applied, which can make the tests harder to understand.

### Test Reliability

The tests are not flaky and do not have any time-dependent failures. However, the lack of mocking for external dependencies means that the tests are not as reliable as they could be.

## 3. Missing Tests

### Edge Cases

The tests do not cover a sufficient number of edge cases, such as null inputs, empty strings, and boundary values.

### Error Paths

The tests do not adequately cover error paths, which can lead to unhandled exceptions in production.

### Security Tests

There are no security tests to check for vulnerabilities such as authentication bypass or injection attacks.

### Integration Tests

The lack of integration tests means that the interactions between different components are not well-tested.

## 4. Suggested Tests to Add

### `pkg/node/controller.go`

- `TestNewController`: Verify that a new controller is created with the correct initial state.
- `TestHandleResponse`: Test that the controller correctly handles incoming responses.
- `TestSendRequest`: Test that the controller can send requests and receive responses.
- `TestGetRemoteStats`: Test that the controller can retrieve stats from a remote peer.
- `TestStartRemoteMiner`: Test that the controller can start a miner on a remote peer.
- `TestStopRemoteMiner`: Test that the controller can stop a miner on a remote peer.
- `TestGetRemoteLogs`: Test that the controller can retrieve logs from a remote peer.
- `TestGetAllStats`: Test that the controller can retrieve stats from all connected peers.
- `TestPingPeer`: Test that the controller can ping a remote peer.
- `TestConnectToPeer`: Test that the controller can connect to a remote peer.
- `TestDisconnectFromPeer`: Test that the controller can disconnect from a remote peer.

### `pkg/node/transport.go`

- `TestTransportStartAndStop`: Test that the transport can be started and stopped correctly.
- `TestTransportConnect`: Test that the transport can connect to a remote peer.
- `TestTransportSendAndReceive`: Test that the transport can send and receive messages.
- `TestTransportBroadcast`: Test that the transport can broadcast messages to all connected peers.
- `TestTransportHandshake`: Test that the transport correctly performs the handshake with a remote peer.
- `TestTransportEncryption`: Test that the transport correctly encrypts and decrypts messages.

### `pkg/mining/xmrig.go`

- `TestUninstall`: Test that the `Uninstall` function correctly removes the miner binary.

### `pkg/node/dispatcher.go`

- `TestDispatchUEPS`: Test that the `DispatchUEPS` function correctly dispatches incoming packets.