[Vis Augmenter] Fix bug of undefined tooltip when all plugin layers a…

…re empty (opensearch-project#4577) (opensearch-project#4579)

(cherry picked from commit 1249d3d)

Signed-off-by: Tyler Ohlsen <[email protected]>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

src/plugins/vis_augmenter/public/test_constants.ts

@@ -171,6 +171,55 @@ const TEST_VALUES_MULTIPLE_VIS_LAYERS = [
   },
 ];
 
+const TEST_VALUES_MULTIPLE_VIS_LAYERS_ONE_EMPTY = [
+  {
+    [TEST_X_AXIS_ID]: 0,
+    [TEST_VALUE_AXIS_ID]: 5,
+    [TEST_PLUGIN_EVENT_TYPE]: 0,
+    [TEST_PLUGIN_EVENT_TYPE_2]: 0,
+  },
+  {
+    [TEST_X_AXIS_ID]: 5,
+    [TEST_VALUE_AXIS_ID]: 10,
+    [TEST_PLUGIN_EVENT_TYPE]: 2,
+    [TEST_PLUGIN_EVENT_TYPE_2]: 0,
+  },
+  {
+    [TEST_X_AXIS_ID]: 10,
+    [TEST_VALUE_AXIS_ID]: 6,
+    [TEST_PLUGIN_EVENT_TYPE]: 0,
+    [TEST_PLUGIN_EVENT_TYPE_2]: 0,
+  },
+  {
+    [TEST_X_AXIS_ID]: 15,
+    [TEST_VALUE_AXIS_ID]: 4,
+    [TEST_PLUGIN_EVENT_TYPE]: 0,
+    [TEST_PLUGIN_EVENT_TYPE_2]: 0,
+  },
+  {
+    [TEST_X_AXIS_ID]: 20,
+    [TEST_VALUE_AXIS_ID]: 5,
+    [TEST_PLUGIN_EVENT_TYPE]: 0,
+    [TEST_PLUGIN_EVENT_TYPE_2]: 0,
+  },
+  { [TEST_X_AXIS_ID]: 25, [TEST_PLUGIN_EVENT_TYPE]: 0, [TEST_PLUGIN_EVENT_TYPE_2]: 0 },
+  { [TEST_X_AXIS_ID]: 30, [TEST_PLUGIN_EVENT_TYPE]: 0, [TEST_PLUGIN_EVENT_TYPE_2]: 0 },
+  { [TEST_X_AXIS_ID]: 35, [TEST_PLUGIN_EVENT_TYPE]: 1, [TEST_PLUGIN_EVENT_TYPE_2]: 0 },
+  { [TEST_X_AXIS_ID]: 40, [TEST_PLUGIN_EVENT_TYPE]: 0, [TEST_PLUGIN_EVENT_TYPE_2]: 0 },
+  {
+    [TEST_X_AXIS_ID]: 45,
+    [TEST_VALUE_AXIS_ID]: 3,
+    [TEST_PLUGIN_EVENT_TYPE]: 0,
+    [TEST_PLUGIN_EVENT_TYPE_2]: 0,
+  },
+  {
+    [TEST_X_AXIS_ID]: 50,
+    [TEST_VALUE_AXIS_ID]: 5,
+    [TEST_PLUGIN_EVENT_TYPE]: 0,
+    [TEST_PLUGIN_EVENT_TYPE_2]: 0,
+  },
+];
+
 export const TEST_COLUMNS_NO_VIS_LAYERS = [
   {
     id: TEST_X_AXIS_ID,
@@ -269,6 +318,12 @@ export const TEST_DATATABLE_MULTIPLE_VIS_LAYERS = {
   rows: TEST_VALUES_MULTIPLE_VIS_LAYERS,
 } as OpenSearchDashboardsDatatable;
 
+export const TEST_DATATABLE_MULTIPLE_VIS_LAYERS_ONE_EMPTY = {
+  type: 'opensearch_dashboards_datatable',
+  columns: TEST_COLUMNS_MULTIPLE_VIS_LAYERS,
+  rows: TEST_VALUES_MULTIPLE_VIS_LAYERS_ONE_EMPTY,
+} as OpenSearchDashboardsDatatable;
+
 const TEST_BASE_CONFIG = {
   view: { stroke: null },
   concat: { spacing: 0 },
@@ -510,6 +565,22 @@ export const TEST_VIS_LAYERS_MULTIPLE = [
   },
 ];
 
+export const TEST_VIS_LAYERS_MULTIPLE_ONE_EMPTY = [
+  ...TEST_VIS_LAYERS_SINGLE,
+  {
+    originPlugin: TEST_PLUGIN,
+    type: VisLayerTypes.PointInTimeEvents,
+    pluginResource: {
+      type: TEST_PLUGIN_RESOURCE_TYPE,
+      id: TEST_PLUGIN_RESOURCE_ID_2,
+      name: TEST_PLUGIN_RESOURCE_NAME_2,
+      urlPath: TEST_PLUGIN_RESOURCE_PATH_2,
+    },
+    pluginEventType: TEST_PLUGIN_EVENT_TYPE_2,
+    events: [],
+  },
+];
+
 const TEST_RULE_LAYER_SINGLE_VIS_LAYER = {
   mark: { type: 'rule', color: EVENT_COLOR, opacity: 1 },
   transform: [{ filter: `datum['${TEST_PLUGIN_EVENT_TYPE}'] > 0` }],

src/plugins/vis_augmenter/public/vega/helpers.test.ts

@@ -31,6 +31,7 @@ import {
 } from '../';
 import {
   TEST_DATATABLE_MULTIPLE_VIS_LAYERS,
+  TEST_DATATABLE_MULTIPLE_VIS_LAYERS_ONE_EMPTY,
   TEST_DATATABLE_NO_VIS_LAYERS,
   TEST_DATATABLE_ONLY_VIS_LAYERS,
   TEST_DATATABLE_SINGLE_ROW_NO_VIS_LAYERS,
@@ -48,6 +49,7 @@ import {
   TEST_SPEC_NO_VIS_LAYERS,
   TEST_SPEC_SINGLE_VIS_LAYER,
   TEST_VIS_LAYERS_MULTIPLE,
+  TEST_VIS_LAYERS_MULTIPLE_ONE_EMPTY,
   TEST_VIS_LAYERS_SINGLE,
   TEST_VIS_LAYERS_SINGLE_INVALID_BOUNDS,
   TEST_VIS_LAYERS_SINGLE_ON_BOUNDS,
@@ -410,6 +412,16 @@ describe('helpers', function () {
         )
       ).toStrictEqual(TEST_DATATABLE_ONLY_VIS_LAYERS);
     });
+    it('vis layers with one having events and the other empty are added correctly', function () {
+      expect(
+        addPointInTimeEventsLayersToTable(
+          TEST_DATATABLE_NO_VIS_LAYERS,
+
+          TEST_DIMENSIONS,
+          TEST_VIS_LAYERS_MULTIPLE_ONE_EMPTY
+        )
+      ).toStrictEqual(TEST_DATATABLE_MULTIPLE_VIS_LAYERS_ONE_EMPTY);
+    });
     it('vis layer with out-of-bounds timestamps are not added', function () {
       expect(
         addPointInTimeEventsLayersToTable(

src/plugins/vis_augmenter/public/vega/helpers.ts

@@ -224,7 +224,6 @@ export const addPointInTimeEventsLayersToTable = (
   });
 
   visLayers.forEach((visLayer: PointInTimeEventsVisLayer) => {
-    if (isEmpty(visLayer.events)) return;
     const visLayerColumnId = `${visLayer.pluginEventType}`;
 
     // Add placeholder values of 0 for every event value. This is so the tooltip