Adding LUIS app delete command (#352)

* Adding LUIS app delete command

* Check status code before printing confirmation

Author: JSpru

packages/luis/src/commands/luis/application/delete.ts

@@ -0,0 +1,49 @@
+/*!
+ * Copyright (c) Microsoft Corporation. All rights reserved.
+ * Licensed under the MIT License.
+ */
+
+import {CLIError, Command, flags} from '@microsoft/bf-cli-command'
+
+const utils = require('../../../utils/index')
+
+export default class LuisApplicationDelete extends Command {
+  static description = 'Deletes a LUIS application'
+
+  static examples = [`
+    $ bf luis:application:delete --appId {APP_ID} --endpoint {ENDPOINT} --subscriptionKey {SUBSCRIPTION_KEY}
+  `]
+
+  static flags = {
+    help: flags.help({char: 'h'}),
+    appId: flags.string({description: 'LUIS application Id'}),
+    endpoint: flags.string({description: 'LUIS endpoint hostname'}),
+    subscriptionKey: flags.string({description: 'LUIS cognitive services subscription key (aka Ocp-Apim-Subscription-Key)'}),
+  }
+
+  async run() {
+    const {flags} = this.parse(LuisApplicationDelete)
+    const flagLabels = Object.keys(LuisApplicationDelete.flags)
+    const configDir = this.config.configDir
+
+    const {
+      appId,
+      endpoint,
+      subscriptionKey,
+    } = await utils.processInputs(flags, flagLabels, configDir)
+
+    const requiredProps = {appId, endpoint, subscriptionKey}
+    utils.validateRequiredProps(requiredProps)
+
+    const client = utils.getLUISClient(subscriptionKey, endpoint)
+
+    try {
+      const result = await client.apps.deleteMethod(appId)
+      if (result.code === 'Success') {
+        this.log('App successfully deleted.')
+      }
+    } catch (err) {
+      throw new CLIError(`Failed to delete app: ${err}`)
+    }
+  }
+}

packages/luis/test/commands/luis/application/delete.test.ts

@@ -0,0 +1,58 @@
+import {expect, test} from '@oclif/test'
+const sinon = require('sinon')
+const uuidv1 = require('uuid/v1')
+const utils = require('../../../../src/utils/index')
+
+describe('luis:application:delete', () => {
+
+  beforeEach(() => {
+    sinon.stub(utils, 'processInputs').returnsArg(0)
+  })
+
+  afterEach(() => {
+    sinon.restore();
+  });
+
+  test
+  .stdout()
+  .command(['luis:application:delete', '--help'])
+  .it('should print the help contents when --help is passed as an argument', ctx => {
+    expect(ctx.stdout).to.contain('Deletes a LUIS application')
+  })
+
+  test
+  .stdout()
+  .stderr()
+  .command(['luis:application:delete', '--endpoint', 'https://westus.api.cognitive.microsoft.com', '--subscriptionKey', uuidv1()])
+  .it('displays an error if any required input parameters are missing', ctx => {
+    expect(ctx.stderr).to.contain(`Required input property 'appId' missing.`)
+  })
+
+  test
+  .stdout()
+  .stderr()
+  .command(['luis:application:delete', '--appId', uuidv1(), '--subscriptionKey', uuidv1()])
+  .it('displays an error if any required input parameters are missing', ctx => {
+    expect(ctx.stderr).to.contain(`Required input property 'endpoint' missing.`)
+  })
+
+  test
+  .nock('https://westus.api.cognitive.microsoft.com', api => api
+  .delete(uri => uri.includes('apps'))
+  .reply(200, {'code': 'Success'})
+  )
+  .stdout()
+  .command(['luis:application:delete', '--appId', uuidv1(), '--endpoint', 'https://westus.api.cognitive.microsoft.com', '--subscriptionKey', uuidv1()])
+  .it('deletes a luis app and displays a success message', ctx => {
+    expect(ctx.stdout).to.contain('App successfully deleted')
+  })
+
+  test
+  .stdout()
+  .stderr()
+  .command(['luis:application:delete', '--appId', uuidv1(), '--endpoint', 'undefined', '--subscriptionKey', uuidv1()])
+  .it('fails to delete an app and displays an error message if the endpoint is undefined', ctx => {
+    expect(ctx.stderr).to.contain('Failed to delete app')
+  })
+
+})