SSH MCP Server

# Epic 6: End-to-End Testing Infrastructure ## Epic Intent Implement comprehensive end-to-end testing infrastructure that validates the complete SSH MCP server functionality using real SSH connections to localhost, ensuring all components work together without any mocking or simulation. ## Story 1: Test Environment Setup As a developer running E2E tests, I want automated test environment setup so that tests can run reliably with real SSH connections. ### Acceptance Criteria - **Given** E2E tests need to run against real SSH connections - **When** the test environment is initialized - **Then** localhost SSH connection is verified using test_user/password123 - **And** test user home directory is accessible and writable - **And** test directory structure is created for file operations - **And** SSH host key is properly configured for localhost - **And** StrictHostKeyChecking is disabled for test connections - **And** test environment cleanup removes all temporary files - **And** environment setup validates all prerequisites before tests begin **Environment Requirements:** - SSH server running on localhost - test_user account with password123 - Writable test directory: /home/test_user/ssh-mcp-test/ - Clean state before each test run ## Story 2: MCP Server Lifecycle Testing As a developer validating the MCP server, I want E2E tests that verify server startup, operation, and shutdown so that I can ensure the complete server lifecycle works correctly. ### Acceptance Criteria - **Given** the MCP server implementation exists - **When** E2E lifecycle tests are executed - **Then** MCP server starts successfully and binds to configured ports - **And** server responds to MCP handshake within 5 seconds - **And** web monitoring server is accessible on expected port - **And** server handles multiple client connections simultaneously - **And** server shuts down gracefully when terminated - **And** all SSH connections are closed during shutdown - **And** server resources are fully cleaned up after shutdown **Test Sequence:** 1. Start MCP server 2. Verify MCP protocol handshake 3. Verify web server accessibility 4. Create test SSH connections 5. Shutdown server 6. Verify complete cleanup ## Story 3: SSH Connection Management E2E Tests As a developer validating SSH functionality, I want comprehensive E2E tests for SSH connection management so that I can verify connections work end-to-end with real SSH servers. ### Acceptance Criteria - **Given** the MCP server is running and test SSH server is available - **When** SSH connection E2E tests are executed - **Then** ssh_connect tool establishes real connection to localhost - **And** connection uses password authentication with test_user/password123 - **And** connection status is properly tracked and reported - **And** multiple named connections can be created simultaneously - **And** connection health monitoring detects real connection failures - **And** automatic reconnection works when connection is interrupted - **And** connections are properly isolated from each other **Test Cases:** - Successful connection establishment - Authentication failure handling - Multiple concurrent connections - Connection interruption and recovery - Connection timeout handling - Duplicate connection name rejection ## Story 4: Command Execution E2E Tests As a developer validating command execution, I want E2E tests that execute real commands on remote systems so that I can verify command execution works without any mocking. ### Acceptance Criteria - **Given** active SSH connections exist to localhost - **When** command execution E2E tests run - **Then** bash commands execute successfully on the remote system - **And** command output (stdout/stderr) is captured completely - **And** command exit codes are returned accurately - **And** working directory changes persist between commands - **And** environment variables persist between commands - **And** long-running commands complete without timeout issues - **And** commands with large output are handled correctly **Test Commands:** ```bash # Basic command execution echo "Hello from remote system" # Working directory persistence cd /tmp && pwd && mkdir ssh-mcp-test && cd ssh-mcp-test && pwd # Environment variable persistence export TEST_VAR="test_value" && echo $TEST_VAR # Large output handling find /usr -name "*.so" | head -1000 # Long-running command sleep 5 && echo "Long command completed" ``` ## Story 5: Real-Time Monitoring E2E Tests As a developer validating the monitoring interface, I want E2E tests that verify real-time terminal monitoring through browser connections so that monitoring works end-to-end. ### Acceptance Criteria - **Given** SSH sessions are active and web server is running - **When** monitoring E2E tests execute - **Then** session monitoring URLs are generated and accessible - **And** WebSocket connections establish successfully to monitoring endpoints - **And** real command output appears in browser terminal in real-time - **And** terminal colors and formatting are preserved - **And** command history is displayed correctly - **And** multiple browser connections can monitor the same session - **And** connection status indicators update accurately - **And** WebSocket reconnection works after interruption **Monitoring Test Sequence:** 1. Create SSH session and execute commands 2. Open monitoring URL and establish WebSocket 3. Verify historical output display 4. Execute new commands and verify real-time updates 5. Interrupt WebSocket and verify reconnection 6. Test multiple concurrent monitoring connections ## Story 6: File Transfer E2E Tests As a developer validating file operations, I want E2E tests for file transfers that use real SFTP operations so that file transfer functionality is proven to work end-to-end. ### Acceptance Criteria - **Given** SSH sessions exist with SFTP capability - **When** file transfer E2E tests execute - **Then** individual files upload successfully to remote system - **And** uploaded files have correct content and permissions - **And** individual files download successfully from remote system - **And** directory uploads transfer complete directory structures - **And** directory downloads retrieve complete directory structures - **And** file permissions and timestamps are preserved - **And** large file transfers complete without corruption - **And** transfer progress is reported accurately **File Transfer Test Cases:** - Upload small text file (< 1KB) - Upload large binary file (> 1MB) - Download system file (/etc/hostname) - Upload directory with subdirectories - Download directory with mixed file types - Verify file integrity with checksums - Test transfer interruption and recovery ## Story 7: Security and Error Handling E2E Tests As a developer validating security, I want E2E tests that verify security measures and error handling work with real security scenarios so that security is proven effective. ### Acceptance Criteria - **Given** various security scenarios need testing - **When** security E2E tests execute - **Then** invalid credentials are rejected with specific error messages - **And** host key verification prevents connection to untrusted hosts - **And** session isolation prevents cross-session data access - **And** resource limits are enforced during actual operations - **And** connection timeouts work with real network delays - **And** audit logs capture real security events accurately - **And** credential information never appears in logs or responses **Security Test Scenarios:** - Wrong password authentication failure - Invalid SSH key authentication failure - Host key mismatch detection - Session isolation verification - Resource limit enforcement - Connection timeout validation - Audit log verification ## Story 8: Full Integration Workflow E2E Test As a developer validating the complete system, I want a comprehensive workflow test that simulates the distributed development lifecycle so that the entire intended use case is proven to work. ### Acceptance Criteria - **Given** the complete SSH MCP server system is running - **When** the full integration workflow test executes - **Then** the following complete workflow succeeds without any failures: 1. **Connection Setup**: Create named SSH connection to development server 2. **Code Synchronization**: Upload local project files to remote system 3. **Remote Build**: Execute build commands and capture output 4. **Testing**: Run remote tests and capture results 5. **Log Retrieval**: Download build logs and test results 6. **Monitoring**: Verify all operations are visible in real-time monitoring 7. **Cleanup**: Disconnect sessions and clean up resources **End-to-End Workflow Test:** ```pseudocode # Step 1: Connection ssh_connect("dev-server", "localhost", {user: "test_user", password: "password123"}) verify connection_status == "connected" verify monitoring_url is accessible # Step 2: File Upload create local test project with multiple files ssh_upload("dev-server", "./test-project/", "/home/test_user/remote-project/") verify all files transferred correctly # Step 3: Remote Operations ssh_exec("dev-server", "cd /home/test_user/remote-project && ls -la") ssh_exec("dev-server", "echo 'Building project...' && sleep 2 && echo 'Build complete'") verify command outputs captured correctly # Step 4: File Download ssh_download("dev-server", "/home/test_user/remote-project/output.log", "./retrieved-log.txt") verify downloaded file content matches # Step 5: Monitoring Verification verify all commands visible in monitoring interface verify real-time updates worked correctly # Step 6: Cleanup ssh_disconnect("dev-server") verify connection closed cleanly verify no resource leaks ``` **Integration Test Success Criteria:** - Complete workflow completes in under 60 seconds - No errors or failures in any step - All file transfers maintain data integrity - Real-time monitoring captures all operations - Resource cleanup is complete