x402-base-facilitator/test/unit/controllers/rest-api/supported/supported.rest.controller.unit.js

/*
  Unit tests for the REST API handler for the /supported endpoints.
*/

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

import sinon from 'sinon'

// Local support libraries
import adapters from '../../../mocks/adapters/index.js'

import UseCasesMock from '../../../mocks/use-cases/index.js'

// const app = require('../../../mocks/app-mock')

import SupportedRESTController from '../../../../../src/controllers/rest-api/supported/controller.js'

import { context as mockContext } from '../../../mocks/ctx-mock.js'

let uut
let sandbox
let ctx

describe('#Supported-REST-Controller', () => {
  // const testUser = {}

  beforeEach(() => {
    const useCases = new UseCasesMock()
    uut = new SupportedRESTController({ adapters, useCases })

    sandbox = sinon.createSandbox()

    // Mock the context object.
    ctx = mockContext()
  })

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

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

        assert.fail('Unexpected code path')
      } catch (err) {
        assert.include(
          err.message,
          'Instance of Adapters library required when instantiating /supported REST Controller.'
        )
      }
    })

    it('should throw an error if useCases are not passed in', () => {
      try {
        uut = new SupportedRESTController({ adapters })

        assert.fail('Unexpected code path')
      } catch (err) {
        assert.include(
          err.message,
          'Instance of Use Cases library required when instantifying /supported REST Controller.'
        )
      }
    })
  })

  describe('#supported', () => {
    it('should return the supported payment kinds and extensions', async () => {
      // Mock dependencies
      ctx.body = {}
      const result = {
        paymentKinds: ['x402'],
        extensions: ['x402']
      }
      sandbox.stub(uut.useCases.supported, 'supported').resolves(result)

      await uut.supported(ctx)

      assert.isObject(ctx.body)
      assert.property(ctx.body, 'paymentKinds')
      assert.property(ctx.body, 'extensions')
    })

    it('should catch and throw  useCases error', async () => {
      try {
        // Force an error
        sandbox.stub(uut.useCases.supported, 'supported').throws(new Error('test error'))

        await uut.supported(ctx)
      } catch (err) {
        // console.log('err: ', err)
        assert.include(err.message, 'test error')
      }
    })
  })
  describe('#handleError', () => {
    it('should still throw error if there is no message', () => {
      try {
        const err = {
          status: 404
        }

        uut.handleError(ctx, err)
      } catch (err) {
        assert.include(err.message, 'Not Found')
      }
    })

    it('should throw error with message', () => {
      try {
        const err = {
          status: 422,
          message: 'test error'
        }

        uut.handleError(ctx, err)
      } catch (err) {
        assert.include(err.message, 'test error')
      }
    })
  })
})