Move service tests alongside code (#1563)

Per discussion in #1543

services/bitrise/bitrise.tester.js

@@ -0,0 +1,53 @@
+'use strict';
+
+const Joi = require('joi');
+const ServiceTester = require('../service-tester');
+
+const t = new ServiceTester({ id: 'bitrise', title: 'Bitrise' });
+module.exports = t;
+
+t.create('deploy status')
+  .get('/cde737473028420d/master.json?token=GCIdEzacE4GW32jLVrZb7A')
+  .expectJSONTypes(Joi.object().keys({
+    name: 'bitrise',
+    value: Joi.equal(
+      'success',
+      'error',
+      'unknown'
+    )
+  }));
+
+t.create('deploy status without branch')
+  .get('/cde737473028420d.json?token=GCIdEzacE4GW32jLVrZb7A')
+  .expectJSONTypes(Joi.object().keys({
+    name: 'bitrise',
+    value: Joi.equal(
+      'success',
+      'error',
+      'unknown'
+    )
+  }));
+
+t.create('unknown branch')
+  .get('/cde737473028420d/unknown.json?token=GCIdEzacE4GW32jLVrZb7A')
+  .expectJSON({ name: 'bitrise', value: 'unknown' });
+
+t.create('invalid token')
+  .get('/cde737473028420d/unknown.json?token=token')
+  .expectJSON({ name: 'bitrise', value: 'inaccessible' });
+
+t.create('invalid App ID')
+  .get('/invalid/master.json?token=GCIdEzacE4GW32jLVrZb7A')
+  .expectJSON({ name: 'bitrise', value: 'inaccessible' });
+
+t.create('server error')
+  .get('/AppID/branch.json?token=token')
+  .intercept(nock => nock('https://www.bitrise.io')
+    .get('/app/AppID/status.json?token=token&branch=branch')
+    .reply(500, 'Something went wrong'))
+  .expectJSON({ name: 'bitrise', value: 'inaccessible' });
+
+t.create('connection error')
+  .get('/AppID/branch.json?token=token')
+  .networkOff()
+  .expectJSON({ name: 'bitrise', value: 'inaccessible' });