Add test for capturing error details

tests/integration/adapter/rest-adapter-test.js

@@ -2551,7 +2551,7 @@ test('gracefully handles exceptions in handleResponse where the ajax request err
 });
 
 test('treats status code 0 as an abort', function(assert) {
-  assert.expect(1);
+  assert.expect(3);
 
   adapter._ajaxRequest = function(hash) {
     hash.error({
@@ -2568,6 +2568,13 @@ test('treats status code 0 as an abort', function(assert) {
   return run(() => {
     return store.findRecord('post', '1').catch(err => {
       assert.ok(err instanceof DS.AbortError, 'reason should be an instance of DS.AbortError');
+      assert.equal(err.errors.length, 1, 'AbortError includes errors with request/response details');
+      let expectedError = {
+        title: "Adapter Error",
+        detail: "Request failed: GET /posts/1",
+        status: 0
+      };
+      assert.deepEqual(err.errors[0], expectedError, 'method, url and, status are captured as details');
     });
   });
 });