# All files / src/test/integration/real-providers harness.ts

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     /**
     * Real Provider Test Harness
     *
     * Extends the existing test infrastructure to use REAL MultiProviderAgentManager
     * for integration testing with actual CLI providers like Claude and Codex.
     *
     * Unlike the standard TestHarness which uses MockAgentManager, this harness:
     * - Uses real CLI spawning (costs real API credits!)
     * - Provides poll-based waiting helpers
     * - Captures events for inspection
     * - Manages temp directories for worktrees
     */

    import { mkdtemp, rm } from 'node:fs/promises';
    import { tmpdir } from 'node:os';
    import { join } from 'node:path';
    import { describe } from 'vitest';
    import type { DrizzleDatabase } from '../../../db/index.js';
    import type { DomainEvent, EventBus } from '../../../events/types.js';
    import { EventEmitterBus } from '../../../events/bus.js';
    import { MultiProviderAgentManager } from '../../../agent/manager.js';
    import type { AgentResult, PendingQuestions, AgentStatus } from '../../../agent/types.js';
    import type { AgentRepository } from '../../../db/repositories/agent-repository.js';
    import type { ProjectRepository } from '../../../db/repositories/project-repository.js';
    import type { AccountRepository } from '../../../db/repositories/account-repository.js';
    import type { InitiativeRepository } from '../../../db/repositories/initiative-repository.js';
    import {
      DrizzleAgentRepository,
      DrizzleProjectRepository,
      DrizzleAccountRepository,
      DrizzleInitiativeRepository,
    } from '../../../db/repositories/drizzle/index.js';
    import { createTestDatabase } from '../../../db/repositories/drizzle/test-helpers.js';

    /**
     * Sleep helper for polling loops.
     */
    export function sleep(ms: number): Promise<void> {
      return new Promise((resolve) => setTimeout(resolve, ms));
    }

    /**
     * Event bus that captures all emitted events for inspection.
     */
    export class CapturingEventBus extends EventEmitterBus {
      emittedEvents: DomainEvent[] = [];

      emit<T extends DomainEvent>(event: T): void {
        this.emittedEvents.push(event);
        super.emit(event);
      }

      getEventsByType<T extends DomainEvent>(type: T['type']): T[] {
        return this.emittedEvents.filter((e) => e.type === type) as T[];
      }

      clearEvents(): void {
        this.emittedEvents = [];
      }
    }

    /**
     * Options for creating a real provider test harness.
     */
    export interface RealProviderHarnessOptions {
      /** Which provider to test (default: 'claude') */
      provider?: 'claude' | 'codex';
      /** Optional workspace root (temp dir created if omitted) */
      workspaceRoot?: string;
    }

    /**
     * Real Provider Test Harness interface.
     *
     * Provides everything needed to test against real CLI providers:
     * - In-memory database with real repositories
     * - Real MultiProviderAgentManager (spawns actual CLI processes)
     * - Event capture for verification
     * - Polling-based wait helpers
     */
    export interface RealProviderHarness {
      /** In-memory SQLite database */
      db: DrizzleDatabase;
      /** Event bus with capture capability */
      eventBus: CapturingEventBus;
      /** Real agent manager (not mock!) */
      agentManager: MultiProviderAgentManager;
      /** Workspace root directory */
      workspaceRoot: string;

      /** Agent repository */
      agentRepository: AgentRepository;
      /** Project repository */
      projectRepository: ProjectRepository;
      /** Account repository */
      accountRepository: AccountRepository;
      /** Initiative repository */
      initiativeRepository: InitiativeRepository;

      /**
       * Wait for an agent to reach idle or crashed status.
       * Polls the database at regular intervals.
       *
       * @param agentId - The agent ID to wait for
       * @param timeoutMs - Maximum time to wait (default 120000ms = 2 minutes)
       * @returns The agent result if completed, or null if crashed/timeout
       */
      waitForAgentCompletion(agentId: string, timeoutMs?: number): Promise<AgentResult | null>;

      /**
       * Wait for an agent to enter waiting_for_input status.
       * Polls the database at regular intervals.
       *
       * @param agentId - The agent ID to wait for
       * @param timeoutMs - Maximum time to wait (default 120000ms)
       * @returns The pending questions if waiting, or null if timeout/other status
       */
      waitForAgentWaiting(agentId: string, timeoutMs?: number): Promise<PendingQuestions | null>;

      /**
       * Wait for an agent to reach a specific status.
       *
       * @param agentId - The agent ID to wait for
       * @param status - The target status
       * @param timeoutMs - Maximum time to wait (default 120000ms)
       */
      waitForAgentStatus(agentId: string, status: AgentStatus, timeoutMs?: number): Promise<void>;

      /**
       * Get captured events filtered by type.
       */
      getEventsByType<T extends DomainEvent>(type: T['type']): T[];

      /**
       * Clear all captured events.
       */
      clearEvents(): void;

      /**
       * Kill all running agents (for cleanup).
       */
      killAllAgents(): Promise<void>;

      /**
       * Clean up all resources (directories, processes).
       * Call this in afterAll/afterEach.
       */
      cleanup(): Promise<void>;
    }

    /** Default poll interval for status checks */
    const POLL_INTERVAL_MS = 1000;

    /**
     * Create a test harness for real provider integration tests.
     *
     * This creates:
     * - In-memory SQLite database
     * - Temp directory for worktrees (or uses provided workspace)
     * - Real MultiProviderAgentManager
     * - Event capture bus
     *
     * @example
     * ```typescript
     * let harness: RealProviderHarness;
     *
     * beforeAll(async () => {
     *   harness = await createRealProviderHarness({ provider: 'claude' });
     * });
     *
     * afterAll(async () => {
     *   await harness.cleanup();
     * });
     *
     * it('spawns and completes', async () => {
     *   const agent = await harness.agentManager.spawn({...});
     *   const result = await harness.waitForAgentCompletion(agent.id);
     *   expect(result?.success).toBe(true);
     * });
     * ```
     */
    export async function createRealProviderHarness(
      options: RealProviderHarnessOptions = {}
    ): Promise<RealProviderHarness> {
      // Create workspace directory (temp if not provided)
      const workspaceRoot = options.workspaceRoot ?? (await mkdtemp(join(tmpdir(), 'cw-test-')));
      const ownedWorkspace = !options.workspaceRoot; // Track if we need to clean up

      // Initialize git repo in temp workspace (required for worktree operations)
      if (ownedWorkspace) {
        const { execSync } = await import('node:child_process');
        execSync('git init', { cwd: workspaceRoot, stdio: 'ignore' });
        execSync('git config user.email "test@test.com"', { cwd: workspaceRoot, stdio: 'ignore' });
        execSync('git config user.name "Test"', { cwd: workspaceRoot, stdio: 'ignore' });
        // Create initial commit (worktrees require at least one commit)
        execSync('touch .gitkeep && git add .gitkeep && git commit -m "init"', { cwd: workspaceRoot, stdio: 'ignore' });
      }

      // Create in-memory database
      const db = createTestDatabase();

      // Create repositories
      const agentRepository = new DrizzleAgentRepository(db);
      const projectRepository = new DrizzleProjectRepository(db);
      const accountRepository = new DrizzleAccountRepository(db);
      const initiativeRepository = new DrizzleInitiativeRepository(db);

      // Create event bus with capture (parent class already sets maxListeners to 100)
      const eventBus = new CapturingEventBus();

      // Create REAL agent manager (not mock!)
      const agentManager = new MultiProviderAgentManager(
        agentRepository,
        workspaceRoot,
        projectRepository,
        accountRepository,
        eventBus
      );

      // Build harness
      const harness: RealProviderHarness = {
        db,
        eventBus,
        agentManager,
        workspaceRoot,
        agentRepository,
        projectRepository,
        accountRepository,
        initiativeRepository,

        async waitForAgentCompletion(agentId: string, timeoutMs = 120000): Promise<AgentResult | null> {
          const deadline = Date.now() + timeoutMs;

          while (Date.now() < deadline) {
            const agent = await agentRepository.findById(agentId);
            if (!agent) return null;

            if (agent.status === 'idle' || agent.status === 'stopped') {
              // Agent completed - get result
              return agentManager.getResult(agentId);
            }

            if (agent.status === 'crashed') {
              // Agent crashed - return the error result
              return agentManager.getResult(agentId);
            }

            if (agent.status === 'waiting_for_input') {
              // Agent is waiting - return null (not completed)
              return null;
            }

            // Still running - wait and check again
            await sleep(POLL_INTERVAL_MS);
          }

          throw new Error(`Timeout waiting for agent ${agentId} to complete after ${timeoutMs}ms`);
        },

        async waitForAgentWaiting(agentId: string, timeoutMs = 120000): Promise<PendingQuestions | null> {
          const deadline = Date.now() + timeoutMs;

          while (Date.now() < deadline) {
            const agent = await agentRepository.findById(agentId);
            if (!agent) return null;

            if (agent.status === 'waiting_for_input') {
              return agentManager.getPendingQuestions(agentId);
            }

            if (agent.status === 'idle' || agent.status === 'stopped' || agent.status === 'crashed') {
              // Agent finished without asking questions
              return null;
            }

            // Still running - wait and check again
            await sleep(POLL_INTERVAL_MS);
          }

          throw new Error(`Timeout waiting for agent ${agentId} to request input after ${timeoutMs}ms`);
        },

        async waitForAgentStatus(agentId: string, status: AgentStatus, timeoutMs = 120000): Promise<void> {
          const deadline = Date.now() + timeoutMs;

          while (Date.now() < deadline) {
            const agent = await agentRepository.findById(agentId);
            if (!agent) {
              throw new Error(`Agent ${agentId} not found`);
            }

            if (agent.status === status) {
              return;
            }

            // Check for terminal states that mean we'll never reach target
            if (status === 'running' && ['idle', 'stopped', 'crashed', 'waiting_for_input'].includes(agent.status)) {
              throw new Error(`Agent ${agentId} already in terminal state ${agent.status}, cannot reach ${status}`);
            }

            await sleep(POLL_INTERVAL_MS);
          }

          throw new Error(`Timeout waiting for agent ${agentId} to reach status ${status} after ${timeoutMs}ms`);
        },

        getEventsByType<T extends DomainEvent>(type: T['type']): T[] {
          return eventBus.getEventsByType<T>(type);
        },

        clearEvents(): void {
          eventBus.clearEvents();
        },

        async killAllAgents(): Promise<void> {
          const agents = await agentRepository.findAll();
          for (const agent of agents) {
            if (agent.status === 'running') {
              try {
                await agentManager.stop(agent.id);
              } catch {
                // Ignore errors during cleanup
              }
            }
          }
        },

        async cleanup(): Promise<void> {
          // Kill any running agents
          await harness.killAllAgents();

          // Clean up workspace directory if we created it
          if (ownedWorkspace) {
            try {
              await rm(workspaceRoot, { recursive: true, force: true });
            } catch {
              // Ignore cleanup errors
            }
          }
        },
      };

      return harness;
    }

    /**
     * Check if real Claude tests should run.
     * Set REAL_CLAUDE_TESTS=1 environment variable to enable.
     */
    export const shouldRunRealClaudeTests = process.env.REAL_CLAUDE_TESTS === '1';

    /**
     * Check if real Codex tests should run.
     * Set REAL_CODEX_TESTS=1 environment variable to enable.
     */
    export const shouldRunRealCodexTests = process.env.REAL_CODEX_TESTS === '1';

    /**
     * Skip wrapper for Claude tests - skips unless REAL_CLAUDE_TESTS=1.
     */
    export const describeRealClaude: typeof describe = shouldRunRealClaudeTests ? describe : (describe.skip as typeof describe);

    /**
     * Skip wrapper for Codex tests - skips unless REAL_CODEX_TESTS=1.
     */
    export const describeRealCodex: typeof describe = shouldRunRealCodexTests ? describe : (describe.skip as typeof describe);

    /**
     * Default test timeout for real CLI tests (2 minutes).
     * Real API calls take 5-30 seconds typically.
     */
    export const REAL_TEST_TIMEOUT = 120000;

    /**
     * Extended test timeout for slow tests (5 minutes).
     * Used for schema retry tests and crash recovery tests.
     */
    export const EXTENDED_TEST_TIMEOUT = 300000;