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Basic Test Execution Framework Design Document

Problem Statement

Implement a basic test execution framework that can load test specifications, coordinate with the MCP client, execute tests, and generate results. This framework will serve as the core orchestration layer for the MOTH test harness.

Proposed Solution

High-Level Architecture

┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│   TestRunner    │───▶│   McpClient     │───▶│   MCP Server    │
│  (Orchestrator) │    │  (Communication)│    │  (Under Test)   │
└─────────────────┘    └─────────────────┘    └─────────────────┘
        │                       │                       │
        ▼                       ▼                       ▼
┌─────────────────┐    ┌─────────────────┐    ┌─────────────────┐
│  Test Results   │    │   Test Config   │    │   Process       │
│  (Reporting)    │    │ (YAML Specs)    │    │  Management     │
└─────────────────┘    └─────────────────┘    └─────────────────┘

Core Components

  1. TestRunner: Main orchestration engine for test execution
  2. TestExecutor: Executes individual test cases and collects results
  3. TestSuite: Groups related tests and manages execution order
  4. TestResult: Captures test outcomes, timing, and error information
  5. ProgressTracker: Monitors and reports test execution progress

Success Criteria

  1. ✅ Framework can execute test suites with multiple test cases
  2. ✅ Integration with McpClient for server communication
  3. ✅ Comprehensive error handling and retry logic
  4. ✅ Performance monitoring and validation
  5. ✅ Progress tracking and reporting
  6. ✅ Test filtering and fail-fast execution
  7. ✅ Comprehensive test suite with 90%+ coverage
  8. ✅ Clean integration with CLI commands

References

  • docs/design/issue-188-mandrel-mcp-th-crate-structure.md
  • docs/design/issue-189-basic-mcp-client.md
  • Issue #191: #191