Add totalDuration to mock_data and spec

spec/frontend/projects/pipelines/charts/components/__snapshots__/statistics_list_spec.js.snap

@@ -11,7 +11,6 @@ exports[`StatisticsList matches the snapshot 1`] = `
       4 pipelines
     </strong>
   </li>
-   
   <li>
     <span>
       Successful:
@@ -21,7 +20,6 @@ exports[`StatisticsList matches the snapshot 1`] = `
       2 pipelines
     </strong>
   </li>
-   
   <li>
     <span>
       Failed:
@@ -31,7 +29,6 @@ exports[`StatisticsList matches the snapshot 1`] = `
       2 pipelines
     </strong>
   </li>
-   
   <li>
     <span>
       Success ratio:
@@ -41,5 +38,14 @@ exports[`StatisticsList matches the snapshot 1`] = `
       50%
     </strong>
   </li>
+  <li>
+    <span>
+      Total duration:
+    </span>
+     
+    <strong>
+      32:15:58
+    </strong>
+  </li>
 </ul>
 `;

spec/frontend/projects/pipelines/charts/mock_data.js

@@ -3,6 +3,7 @@ export const counts = {
   success: 2,
   total: 4,
   successRatio: 50,
+  totalDuration: 116158,
 };
 
 export const timesChartData = {