feat: auto choose speech synthezier from account/service level for createCall (#60)

* feat: auto choose speech synthezier from account/service level

* wip: add integration test

* fix: review comment

* fix: review comment

test/call-test.js

@@ -0,0 +1,82 @@
+const test = require('tape');
+const jwt = require('jsonwebtoken');
+const request = require('request-promise-native').defaults({
+  baseUrl: 'http://127.0.0.1:3000/v1'
+});
+const consoleLogger = { debug: console.log, info: console.log, error: console.error }
+const {
+  createServiceProvider,
+  createAccount,
+  createGoogleSpeechCredentials,
+  getLastRequestFromFeatureServer
+} = require('./utils');
+
+test('Create Call Success With Synthesizer in Payload', async (t) => {
+  // GIVEN
+  const app = require('../app');
+  let result;
+  const service_provider_sid = await createServiceProvider(request, 'account_has_synthesizer');
+  const account_sid = await createAccount(request, service_provider_sid, 'account_has_synthesizer');
+  const token = jwt.sign({
+    account_sid
+  }, process.env.JWT_SECRET, { expiresIn: '1h' });
+  const authUser = { bearer: token };
+  const speech_sid = await createGoogleSpeechCredentials(request, account_sid, null, authUser, true, true)
+
+  // WHEN
+  result = await request.post(`/Accounts/${account_sid}/Calls`, {
+    resolveWithFullResponse: true,
+    auth: authUser,
+    json: true,
+    body: {
+      call_hook: "https://public-apps.jambonz.us/hello-world",
+      call_status_hook: "https://public-apps.jambonz.us/call-status",
+      from: "15083778299",
+      to: {
+        type: "phone",
+        number: "15089084809"
+      },
+      speech_synthesis_vendor: "google",
+      speech_synthesis_language: "en-US",
+      speech_synthesis_voice: "en-US-Standard-C",
+      speech_recognizer_vendor: "google",
+      speech_recognizer_language: "en-US"
+    }
+  });
+  // THEN
+  t.ok(result.statusCode === 201, 'successfully created Call without Synthesizer && application_sid');
+  const fs_request = await getLastRequestFromFeatureServer('15083778299_createCall');
+  const obj = JSON.parse(fs_request);
+  t.ok(obj.body.speech_synthesis_vendor == 'google', 'speech synthesizer successfully added')
+  t.ok(obj.body.speech_recognizer_vendor == 'google', 'speech recognizer successfully added')
+});
+
+test('Create Call Success Without Synthesizer in Payload', async (t) => {
+  // GIVEN
+  const app = require('../app');
+  let result;
+  const service_provider_sid = await createServiceProvider(request, 'account2_has_synthesizer');
+  const account_sid = await createAccount(request, service_provider_sid, 'account2_has_synthesizer');
+  const token = jwt.sign({
+    account_sid
+  }, process.env.JWT_SECRET, { expiresIn: '1h' });
+  const authUser = { bearer: token };
+  const speech_sid = await createGoogleSpeechCredentials(request, account_sid, null, authUser, true, true)
+
+  // WHEN
+  result = await request.post(`/Accounts/${account_sid}/Calls`, {
+    resolveWithFullResponse: true,
+    auth: authUser,
+    json: true,
+    body: {
+      call_hook: "https://public-apps.jambonz.us/hello-world",
+      call_status_hook: "https://public-apps.jambonz.us/call-status",
+      from: "15083778299",
+      to: {
+        type: "phone",
+        number: "15089084809"
+      }
+    }
+  }).then(data => { t.ok(false, 'Create Call should not be success') })
+    .catch(error => { t.ok(error.response.statusCode === 400, 'Call failed for no synthesizer') });
+});