Add error handling to retrieval service

awx/ui/static/js/services/job-status-graph-data.js

@@ -22,6 +22,18 @@ function JobStatusGraphData(Rest, getBasePath, processErrors, $rootScope, $q) {
          $rootScope.
            $broadcast('DataReceived:JobStatusGraph',
                       result);
+          return result;
+       }).catch(function(response) {
+         var errorMessage = 'Failed to get: ' + url + ' GET returned: ' + status;
+
+         ProcessErrors(null,
+                       response.data,
+                       response.status,
+                       null, {
+                         hdr: 'Error!',
+                         msg: errorMessage
+                       });
+         return response;
        });
      });
    },

awx/ui/tests/unit/services/job-status-graph-data-test.js

@@ -71,6 +71,17 @@ describe('Job Status Graph Data Service', function() {
     return expect(result).to.eventually.equal(firstResult);;
   });
 
+  it('processes errors through error handler', function() {
+    var expected = { data: "error", status: "bad" };
+    var actual = jobStatusGraphData.get();
+
+    restStub.fail(expected);
+
+    flushPromises();
+
+    return expect(actual).to.be.rejectedWith(expected);
+  });
+
   it('broadcasts event when data is received', function() {
     var expected = "value";
     var result = q.defer();
@@ -88,7 +99,4 @@ describe('Job Status Graph Data Service', function() {
     return expect(result.promise).to.eventually.equal(expected);
   });
 
-  xit('processes errors through error handler', function() {
-  });
-
 });