x402-base-facilitator/test/unit/use-cases/settle.js

/*
  Unit tests for the src/use-cases/settle.js business logic library.

*/

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

import SettleUseCases from '../../../src/use-cases/settle.js'

import adapters from '../mocks/adapters/index.js'
describe('#settle-use-case', () => {
  let uut
  let sandbox

  before(async () => {

  })

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

    uut = new SettleUseCases({ adapters })
    console.log('SupportedLib adapters: ', adapters.facilitatorMock)
  })

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

  describe('#constructor', () => {
    it('should throw an error if adapters are not passed in', () => {
      try {
        uut = new SettleUseCases()

        assert.fail('Unexpected code path')
      } catch (err) {
        assert.include(
          err.message,
          'Instance of adapters must be passed in when instantiating Settle Use Cases library.'
        )
      }
    })
  })

  describe('#settle', () => {
    it('should return the supported payment kinds and extensions', async () => {
      const result = await uut.settle({ paymentPayload: {}, paymentRequirements: {} })

      assert.isObject(result)
    })
    it('should throw an error if paymentPayload  are not provided', async () => {
      try {
        await uut.settle({})
        assert.fail('Unexpected code path')
      } catch (error) {
        assert.include(error.message, 'Missing paymentPayload or paymentRequirements')
      }
    })
    it('should throw an error if paymentRequirements are not provided', async () => {
      try {
        await uut.settle({ paymentPayload: {} })
        assert.fail('Unexpected code path')
      } catch (error) {
        assert.include(error.message, 'Missing paymentPayload or paymentRequirements')
      }
    })
    it('should handle facilitator errors', async () => {
      try {
        sandbox.stub(uut.facilitator, 'settle').throws(new Error('test error'))
        await uut.settle({ paymentPayload: {}, paymentRequirements: {} })
        assert.fail('Unexpected code path')
      } catch (error) {
        assert.include(error.message, 'test error')
      }
    })
  })
})