test(integration): add start of integration testing framework (#477)

README.md

@@ -192,6 +192,18 @@ Run the unit tests:
 npm test
 ```
 
+The integration tests use the `current-context` in your kubeconfig file. Run the integration tests:
+
+```
+npm run test-integration
+```
+
+Run integration tests with the `@kubernetes/client-node` backend:
+
+```
+KUBERNETES_CLIENT_BACKEND=client-node npm run test-integration
+```
+
 ## References
 
 * [An Intuitive Node.js Client for the Kubernetes API](https://godaddy.github.io/2018/04/10/an-intuitive-nodejs-client-for-the-kubernetes-api/)

package.json

@@ -12,6 +12,7 @@
     "release": "standard-version --tag-prefix=''",
     "test": "standard && mocha 'lib/**/*.test.js' 'backends/**/*.test.js' && npm run test-typings && npm run test-generated",
     "test-generated": "scripts/test-generated.sh",
+    "test-integration": "mocha test-integration/ --timeout 30000",
     "test-typings": "tsc --project ./typings"
   },
   "repository": "godaddy/kubernetes-client",

test-integration/basic.js

@@ -0,0 +1,12 @@
+/* eslint-disable max-nested-callbacks */
+/* eslint-env mocha */
+'use strict'
+
+const env = require('./env')
+
+describe('test-integration/basic', () => {
+  it('creates and deletes Namespaces', async () => {
+    await env.setupNamespace()
+    await env.tearDownNamespace()
+  })
+})

test-integration/env.js

@@ -0,0 +1,59 @@
+/* eslint-disable max-nested-callbacks */
+/* eslint-env mocha */
+'use strict'
+
+const k8s = require('@kubernetes/client-node')
+
+const Client = require('../').Client
+const Request = require('../backends/request')
+
+const ClientNodeBackend = require('../backends/kubernetes-client-node')
+
+async function getClient () {
+  if (process.env.KUBERNETES_CLIENT_BACKEND === 'client-node') {
+    const kubeconfig = new k8s.KubeConfig()
+    kubeconfig.loadFromDefault()
+    const backend = new ClientNodeBackend({ client: k8s, kubeconfig })
+    const client = new Client({ backend, version: '1.13' })
+    return client
+  } else {
+    const backend = new Request(Request.config.fromKubeconfig())
+    const client = new Client({ backend })
+    await client.loadSpec()
+    return client
+  }
+}
+
+let lastNamespace = null
+
+async function setupNamespace (options) {
+  options = options || {}
+  const client = options.client || await getClient()
+
+  const namespace = `test-${Math.floor(Math.random() * 900000 + 100000)}`
+  lastNamespace = namespace
+
+  await client.api.v1.namespaces.post({
+    body: {
+      metadata: {
+        name: namespace
+      }
+    }
+  })
+
+  return namespace
+}
+
+async function tearDownNamespace (options) {
+  options = options || {}
+  const client = options.clent || await getClient()
+  const namespace = options.namespace || lastNamespace
+
+  await client.api.v1.namespaces(namespace).delete()
+}
+
+module.exports = {
+  getClient,
+  setupNamespace,
+  tearDownNamespace
+}