FIX: makes dashboard more resilient to errors (#6217)

This commit is an attempt to limit cases where the dashboard will generate a full exception page and also make it easier to track the error.

test/javascripts/components/admin-report-test.js.es6

@@ -112,7 +112,7 @@ componentTest("timeout", {
   template: "{{admin-report dataSourceName='signups_timeout'}}",
 
   test(assert) {
-    assert.ok(exists(".alert-error"), "it displays a timeout error");
+    assert.ok(exists(".alert-error.timeout"), "it displays a timeout error");
   }
 });
 
@@ -120,6 +120,14 @@ componentTest("no data", {
   template: "{{admin-report dataSourceName='posts'}}",
 
   test(assert) {
-    assert.ok(exists(".no-data-alert"), "it displays a no data alert");
+    assert.ok(exists(".no-data"), "it displays a no data alert");
+  }
+});
+
+componentTest("exception", {
+  template: "{{admin-report dataSourceName='signups_exception'}}",
+
+  test(assert) {
+    assert.ok(exists(".alert-error.exception"), "it displays an error");
   }
 });

test/javascripts/fixtures/signups_exception.js.es6

@@ -0,0 +1,11 @@
+import signups from "fixtures/signups";
+
+const signupsExceptionKey = "/admin/reports/signups_exception";
+const signupsKey = "/admin/reports/signups";
+
+let fixture = {};
+
+fixture[signupsExceptionKey] = JSON.parse(JSON.stringify(signups[signupsKey]));
+fixture[signupsExceptionKey].report.error = "exception";
+
+export default fixture;

test/javascripts/fixtures/signups_timeout.js.es6

@@ -1,35 +1,11 @@
-export default {
-  "/admin/reports/signups_timeout": {
-    report: {
-      type: "signups",
-      title: "Signups",
-      xaxis: "Day",
-      yaxis: "Number of signups",
-      description: "New account registrations for this period",
-      data: null,
-      start_date: "2018-06-16T00:00:00Z",
-      end_date: "2018-07-16T23:59:59Z",
-      prev_data: null,
-      prev_start_date: "2018-05-17T00:00:00Z",
-      prev_end_date: "2018-06-17T00:00:00Z",
-      category_id: null,
-      group_id: null,
-      prev30Days: null,
-      dates_filtering: true,
-      report_key: "reports:signups_timeout::20180616:20180716::[:prev_period]:",
-      labels: [
-        { type: "date", properties: ["x"], title: "Day" },
-        { type: "number", properties: ["y"], title: "Count" }
-      ],
-      processing: false,
-      average: false,
-      percent: false,
-      higher_is_better: true,
-      category_filtering: false,
-      group_filtering: true,
-      modes: ["table", "chart"],
-      prev_period: 961,
-      timeout: true
-    }
-  }
-};
+import signups from "fixtures/signups";
+
+const signupsTimeoutKey = "/admin/reports/signups_timeout";
+const signupsKey = "/admin/reports/signups";
+
+let fixture = {};
+
+fixture[signupsTimeoutKey] = JSON.parse(JSON.stringify(signups[signupsKey]));
+fixture[signupsTimeoutKey].report.error = "timeout";
+
+export default fixture;