test(instrumentation/https): cover with tests

Author: Peter Marton

Diff for: src/instrumentation/httpsClient.spec.js

@@ -0,0 +1,35 @@
+'use strict'
+
+const https = require('https')
+const { expect } = require('chai')
+const { Tracer } = require('opentracing')
+const instrumentation = require('./httpsClient')
+const httpClient = require('./httpClient')
+
+describe('instrumentation: httpsClient', () => {
+  let tracer
+
+  beforeEach(() => {
+    tracer = new Tracer()
+  })
+
+  describe('#patch', () => {
+    it('should call httpClient\'s patch', function () {
+      this.sandbox.stub(httpClient, 'patch')
+
+      instrumentation.patch(https, tracer)
+
+      expect(httpClient.patch).to.be.calledWith(https, tracer)
+    })
+  })
+
+  describe('#unpatch', () => {
+    it('should call httpClient\'s unpatch', function () {
+      this.sandbox.stub(httpClient, 'unpatch')
+
+      instrumentation.unpatch(https, tracer)
+
+      expect(httpClient.unpatch).to.be.calledWith(https)
+    })
+  })
+})