psf-bch-api-base/test/unit/adapters/nostr-relay-unit.js

/*
  Unit tests for NostrRelayAdapter.
*/

/*
// npm libraries
import { assert } from 'chai'
import sinon from 'sinon'

// Mocking data libraries
import {
  mockKind1Event,
  validEventId
} from '../mocks/event-mocks.js'
import {
  mockOkAccepted,
  mockEventMessage,
  mockEoseMessage,
  mockClosedMessage
} from '../mocks/nostr-relay-mocks.js'

// Unit under test
// Note: WebSocket mocking for ES modules is complex. These tests focus on
// testing the adapter's logic that can be tested without full WebSocket mocking.
import NostrRelayAdapter from '../../../src/adapters/nostr-relay.js'

describe('#nostr-relay.js', () => {
  let sandbox
  let uut

  beforeEach(() => {
    sandbox = sinon.createSandbox()

    uut = new NostrRelayAdapter({
      relayUrl: 'wss://test-relay.example.com'
    })
  })

  afterEach(() => {
    sandbox.restore()
  })

  describe('#connect()', () => {
    it('should return immediately if already connected', async () => {
      // Manually set connection state
      uut.isConnected = true
      uut.ws = { close: sandbox.stub() }

      await uut.connect()

      // Should not create new connection
      assert.isTrue(uut.isConnected)
    })

    // Note: Full WebSocket connection testing requires integration tests
    // due to ES module import limitations
  })

  describe('#sendEvent()', () => {
    it('should queue message when disconnected', async () => {
      uut.isConnected = false
      uut.ws = null

      // Mock connect to resolve immediately
      uut.connect = sandbox.stub().resolves()

      // Start sending (will queue)
      uut.sendEvent(mockKind1Event).catch(() => {
        // Expected to fail or timeout without real WebSocket
      })

      // Should queue message and attempt connection
      // Wait a bit for async operations
      await new Promise(resolve => setTimeout(resolve, 10))
      assert.isTrue(uut.pendingMessages.length > 0 || uut.connect.called)
    })

    it('should set up event resolver', async () => {
      uut.isConnected = true
      uut.ws = { send: sandbox.stub() }
      // Mock sendMessage to resolve immediately
      uut.sendMessage = sandbox.stub().resolves()

      // Start sending
      const sendPromise = uut.sendEvent(mockKind1Event).catch(() => {
        // Expected without real WebSocket response
      })

      // Wait a tick for Promise constructor to run
      await new Promise(resolve => setImmediate(resolve))

      // Verify resolver was set up
      assert.isTrue(uut.eventResolvers.has(mockKind1Event.id))

      // Clean up
      uut.eventResolvers.delete(mockKind1Event.id)
      // Prevent timeout error
      sendPromise.catch(() => {})
    })

    // Note: Full sendEvent testing with WebSocket responses requires integration tests
  })

  describe('#sendReq()', () => {
    it('should store handlers for subscription', async () => {
      uut.isConnected = true
      uut.ws = { send: sandbox.stub() }
      uut.connect = sandbox.stub().resolves()

      const subscriptionId = 'test-sub-123'
      const filters = [{ kinds: [1] }]
      const handlers = {
        onEvent: sandbox.stub(),
        onEose: sandbox.stub(),
        onClosed: sandbox.stub()
      }

      await uut.sendReq(subscriptionId, filters, handlers)

      // Assert handlers were stored
      assert.isTrue(uut.subscriptionHandlers.has(subscriptionId))
      assert.deepEqual(uut.subscriptionHandlers.get(subscriptionId), handlers)
    })

    it('should connect before sending if disconnected', async () => {
      uut.isConnected = false
      uut.connect = sandbox.stub().resolves()

      const subscriptionId = 'test-sub-123'
      const filters = [{ kinds: [1] }]
      const handlers = {}

      await uut.sendReq(subscriptionId, filters, handlers)

      assert.isTrue(uut.connect.called)
    })
  })

  describe('#sendClose()', () => {
    it('should clean up handlers for subscription', async () => {
      uut.isConnected = true
      uut.ws = { send: sandbox.stub() }

      const subscriptionId = 'test-sub-123'
      uut.subscriptionHandlers.set(subscriptionId, {})
      uut.messageHandlers.set(subscriptionId, {})

      await uut.sendClose(subscriptionId)

      // Assert handlers were cleaned up
      assert.isFalse(uut.subscriptionHandlers.has(subscriptionId))
      assert.isFalse(uut.messageHandlers.has(subscriptionId))
    })
  })

  describe('#handleMessage()', () => {
    it('should handle EVENT message', () => {
      // Use the subscription ID from the mock message
      const subscriptionId = 'subscription-id-123'
      const onEventHandler = sandbox.stub()
      uut.subscriptionHandlers.set(subscriptionId, {
        onEvent: onEventHandler
      })

      const message = mockEventMessage
      uut.handleMessage(message)

      assert.isTrue(onEventHandler.calledOnce)
      assert.deepEqual(onEventHandler.getCall(0).args[0], mockKind1Event)
    })

    it('should handle EOSE message', () => {
      // Use the subscription ID from the mock message
      const subscriptionId = 'subscription-id-123'
      const onEoseHandler = sandbox.stub()
      uut.subscriptionHandlers.set(subscriptionId, {
        onEose: onEoseHandler
      })

      const message = mockEoseMessage
      uut.handleMessage(message)

      assert.isTrue(onEoseHandler.calledOnce)
    })

    it('should handle CLOSED message', () => {
      // Use the subscription ID from the mock message
      const subscriptionId = 'subscription-id-123'
      const onClosedHandler = sandbox.stub()
      uut.subscriptionHandlers.set(subscriptionId, {
        onClosed: onClosedHandler
      })

      const message = mockClosedMessage
      uut.handleMessage(message)

      assert.isTrue(onClosedHandler.calledOnce)
      assert.equal(onClosedHandler.getCall(0).args[0], 'subscription closed')
    })

    it('should handle OK message', () => {
      const eventId = validEventId
      let resolver = null
      uut.eventResolvers.set(eventId, (result) => {
        resolver = result
      })

      const message = mockOkAccepted
      uut.handleMessage(message)

      assert.isNotNull(resolver)
      assert.isTrue(resolver.accepted)
      assert.isFalse(uut.eventResolvers.has(eventId))
    })

    it('should handle NOTICE message', () => {
      const message = ['NOTICE', 'rate limited']
      // Should not throw
      uut.handleMessage(message)
    })

    it('should ignore invalid message format', () => {
      const message = 'invalid'
      // Should not throw
      uut.handleMessage(message)
    })

    it('should ignore empty messages', () => {
      const message = []
      // Should not throw
      uut.handleMessage(message)
    })
  })

  describe('#disconnect()', () => {
    it('should disconnect from relay', async () => {
      const mockWs = { close: sandbox.stub() }
      uut.isConnected = true
      uut.ws = mockWs

      await uut.disconnect()

      assert.isTrue(mockWs.close.called)
      assert.isFalse(uut.isConnected)
      assert.isNull(uut.ws)
    })

    it('should handle disconnect when already disconnected', async () => {
      uut.isConnected = false
      uut.ws = null

      await uut.disconnect()

      assert.isFalse(uut.isConnected)
    })
  })

  describe('#handleError()', () => {
    it('should handle WebSocket errors', () => {
      uut.isConnected = true
      const error = new Error('WebSocket error')

      uut.handleError(error)

      assert.isFalse(uut.isConnected)
    })
  })

  describe('#handleClose()', () => {
    it('should attempt reconnection on close', async () => {
      uut.isConnected = true
      uut.reconnectAttempts = 0
      uut.maxReconnectAttempts = 5

      // Mock connect to avoid actual connection
      uut.connect = sandbox.stub().resolves()

      uut.handleClose()

      // Wait for reconnection attempt
      await new Promise(resolve => setTimeout(resolve, 110))

      // Should attempt reconnection
      assert.equal(uut.reconnectAttempts, 1)
    })

    it('should stop reconnecting after max attempts', async () => {
      uut.isConnected = true
      uut.reconnectAttempts = 5
      uut.maxReconnectAttempts = 5

      uut.connect = sandbox.stub().resolves()

      uut.handleClose()

      await new Promise(resolve => setTimeout(resolve, 110))

      // Should not increment beyond max
      assert.equal(uut.reconnectAttempts, 5)
    })
  })
})

*/