ui: Enable blocking queries by default (#6194)

-Enable blocking queries by default
-Change assertion to check for the last PUT request, not just any request for session destruction from a node page.

Since we've now turned on blocking queries by default this means that a
second GET request is made after the PUT request that we are asserting
for but before the assertion itself, this meant the assertion failed. We
double checked this by turning off blocking queries for this test using

```
And settings from yaml
---
consul:client:
  blocking: 0
---
```

which made the test pass again.

As moving forwards blocking queries will be on by default, we didn't
want to disable blocking queries for this test, so we now assert the
last PUT request specifically. This means we continue to assert that the
session has been destroyed but means we don't get into problems of
ordering of requests here

ui-v2/app/controllers/settings.js

@@ -34,9 +34,6 @@ export default Controller.extend({
       const blocking = get(this, 'item.client.blocking');
       switch (target.name) {
         case 'client[blocking]':
-          if (typeof blocking === 'undefined') {
-            set(this, 'item.client', {});
-          }
           set(this, 'item.client.blocking', !blocking);
           this.send('update', get(this, 'item'));
           break;

ui-v2/app/routes/settings.js

@@ -1,7 +1,7 @@
 import Route from '@ember/routing/route';
 import { inject as service } from '@ember/service';
 import { hash } from 'rsvp';
-import { get } from '@ember/object';
+import { get, set } from '@ember/object';
 
 export default Route.extend({
   client: service('client/http'),
@@ -12,6 +12,9 @@ export default Route.extend({
       item: get(this, 'repo').findAll(),
       dcs: get(this, 'dcRepo').findAll(),
     }).then(model => {
+      if (typeof get(model.item, 'client.blocking') === 'undefined') {
+        set(model, 'item.client', { blocking: true });
+      }
       return hash({
         ...model,
         ...{

ui-v2/app/services/repository/type/event-source.js

@@ -65,7 +65,7 @@ const createProxy = function(repo, find, settings, cache, serialize = JSON.strin
         key: key,
         type: BlockingEventSource,
         settings: {
-          enabled: settings.blocking,
+          enabled: typeof settings.blocking === 'undefined' || settings.blocking,
         },
         createEvent: createEvent,
       }

ui-v2/tests/acceptance/dc/list-blocking.feature

@@ -5,11 +5,6 @@ Feature: dc / list-blocking
   I want to see changes if I change consul externally
   Background:
     Given 1 datacenter model with the value "dc-1"
-    And settings from yaml
-    ---
-    consul:client:
-      blocking: 1
-    ---
   Scenario: Viewing the listing pages
     Given 3 [Model] models
     And a network latency of 100

ui-v2/tests/acceptance/dc/nodes/sessions/invalidate.feature

@@ -25,7 +25,7 @@ Feature: dc / nodes / sessions / invalidate: Invalidate Lock Sessions
   Scenario: Invalidating the lock session
     And I click delete on the sessions
     And I click confirmDelete on the sessions
-    Then a PUT request is made to "/v1/session/destroy/7bbbd8bb-fff3-4292-b6e3-cfedd788546a?dc=dc1"
+    Then the last PUT request was made to "/v1/session/destroy/7bbbd8bb-fff3-4292-b6e3-cfedd788546a?dc=dc1"
     Then the url should be /dc1/nodes/node-0
     And "[data-notification]" has the "notification-delete" class
     And "[data-notification]" has the "success" class