feat(x402): Implemented x402 Base facilitator

test/unit/use-cases/verify.js

@@ -0,0 +1,77 @@
+/*
+  Unit tests for the src/use-cases/verify.js business logic library.
+
+*/
+
+// Public npm libraries
+import { assert } from 'chai'
+import sinon from 'sinon'
+
+import VerifyUseCases from '../../../src/use-cases/verify.js'
+
+import adapters from '../mocks/adapters/index.js'
+describe('#verify-use-case', () => {
+  let uut
+  let sandbox
+
+  before(async () => {
+
+  })
+
+  beforeEach(() => {
+    sandbox = sinon.createSandbox()
+
+    uut = new VerifyUseCases({ 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 VerifyUseCases()
+
+        assert.fail('Unexpected code path')
+      } catch (err) {
+        assert.include(
+          err.message,
+          'Instance of adapters must be passed in when instantiating Verify Use Cases library.'
+        )
+      }
+    })
+  })
+
+  describe('#verify', () => {
+    it('should return the supported payment kinds and extensions', async () => {
+      const result = await uut.verify({ paymentPayload: {}, paymentRequirements: {} })
+
+      assert.isObject(result)
+    })
+    it('should throw an error if paymentPayload  are not provided', async () => {
+      try {
+        await uut.verify({})
+        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.verify({ 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, 'verify').throws(new Error('test error'))
+        await uut.verify({ paymentPayload: {}, paymentRequirements: {} })
+        assert.fail('Unexpected code path')
+      } catch (error) {
+        assert.include(error.message, 'test error')
+      }
+    })
+  })
+})