Add test

src/plugins/discover/public/__mocks__/es_hits.ts

@@ -0,0 +1,55 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+export const esHits = [
+  {
+    _index: 'i',
+    _id: '1',
+    _score: 1,
+    _type: '_doc',
+    _source: { date: '2020-20-01T12:12:12.123', message: 'test1', bytes: 20 },
+  },
+  {
+    _index: 'i',
+    _id: '2',
+    _score: 1,
+    _type: '_doc',
+    _source: { date: '2020-20-01T12:12:12.124', name: 'test2', extension: 'jpg' },
+  },
+  {
+    _index: 'i',
+    _id: '3',
+    _score: 1,
+    _type: '_doc',
+    _source: { date: '2020-20-01T12:12:12.124', name: 'test3', extension: 'gif', bytes: 50 },
+  },
+  {
+    _index: 'i',
+    _id: '4',
+    _score: 1,
+    _type: '_doc',
+    _source: { date: '2020-20-01T12:12:12.125', name: 'test4', extension: 'png', bytes: 50 },
+  },
+  {
+    _index: 'i',
+    _id: '5',
+    _score: 1,
+    _type: '_doc',
+    _source: { date: '2020-20-01T12:12:12.128', name: 'test5', extension: 'doc', bytes: 50 },
+  },
+];

src/plugins/discover/public/__mocks__/index_pattern.ts

@@ -17,8 +17,9 @@
  * under the License.
  */
 
-import { IndexPattern, indexPatterns } from '../kibana_services';
 import { IIndexPatternFieldList } from '../../../data/common/index_patterns/fields';
+import { IndexPattern } from '../../../data/common';
+import { indexPatterns } from '../../../data/public';
 
 const fields = [
   {
@@ -67,8 +68,10 @@ const indexPattern = ({
   getComputedFields: () => ({}),
   getSourceFiltering: () => ({}),
   getFieldByName: () => ({}),
+  timeFieldName: '',
 } as unknown) as IndexPattern;
 
 indexPattern.flattenHit = indexPatterns.flattenHitWrapper(indexPattern, indexPattern.metaFields);
+indexPattern.isTimeBased = () => !!indexPattern.timeFieldName;
 
 export const indexPatternMock = indexPattern;

src/plugins/discover/public/__mocks__/index_pattern_with_timefield.ts

@@ -0,0 +1,83 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { IIndexPatternFieldList } from '../../../data/common/index_patterns/fields';
+import { IndexPattern } from '../../../data/common';
+import { indexPatterns } from '../../../data/public';
+
+const fields = [
+  {
+    name: '_index',
+    type: 'string',
+    scripted: false,
+    filterable: true,
+  },
+  {
+    name: 'timestamp',
+    type: 'date',
+    scripted: false,
+    filterable: true,
+  },
+  {
+    name: 'message',
+    type: 'string',
+    scripted: false,
+    filterable: false,
+  },
+  {
+    name: 'extension',
+    type: 'string',
+    scripted: false,
+    filterable: true,
+  },
+  {
+    name: 'bytes',
+    type: 'number',
+    scripted: false,
+    filterable: true,
+  },
+  {
+    name: 'scripted',
+    type: 'number',
+    scripted: true,
+    filterable: false,
+  },
+] as IIndexPatternFieldList;
+
+fields.getByName = (name: string) => {
+  return fields.find((field) => field.name === name);
+};
+
+const indexPattern = ({
+  id: 'index-pattern-with-timefield-id',
+  title: 'index-pattern-without-timefield',
+  metaFields: ['_index', '_score'],
+  flattenHit: undefined,
+  formatHit: jest.fn((hit) => hit._source),
+  fields,
+  getComputedFields: () => ({}),
+  getSourceFiltering: () => ({}),
+  getFieldByName: () => ({}),
+  timeFieldName: 'timestamp',
+} as unknown) as IndexPattern;
+
+indexPattern.flattenHit = indexPatterns.flattenHitWrapper(indexPattern, indexPattern.metaFields);
+indexPattern.isTimeBased = () => !!indexPattern.timeFieldName;
+
+export const indexPatternWithTimefieldMock = indexPattern;

src/plugins/discover/public/__mocks__/ui_settings.ts

@@ -0,0 +1,29 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import { IUiSettingsClient } from 'kibana/public';
+import { SAMPLE_SIZE_SETTING } from '../../common';
+
+export const uiSettingsMock = ({
+  get: (key: string) => {
+    if (key === SAMPLE_SIZE_SETTING) {
+      return 10;
+    }
+    return false;
+  },
+} as unknown) as IUiSettingsClient;

src/plugins/discover/public/application/components/discover_legacy.test.tsx

@@ -0,0 +1,130 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import React from 'react';
+import { shallowWithIntl } from '@kbn/test/jest';
+import { DiscoverLegacy } from './discover_legacy';
+import { inspectorPluginMock } from '../../../../inspector/public/mocks';
+import { esHits } from '../../__mocks__/es_hits';
+import { indexPatternMock } from '../../__mocks__/index_pattern';
+import { getTopNavLinks } from './top_nav/get_top_nav_links';
+import { DiscoverServices } from '../../build_services';
+import { GetStateReturn } from '../angular/discover_state';
+import { savedSearchMock } from '../../__mocks__/saved_search';
+import { createSearchSourceMock } from '../../../../data/common/search/search_source/mocks';
+import { dataPluginMock } from '../../../../data/public/mocks';
+import { createFilterManagerMock } from '../../../../data/public/query/filter_manager/filter_manager.mock';
+import { uiSettingsMock } from '../../__mocks__/ui_settings';
+import { IndexPattern, IndexPatternAttributes } from '../../../../data/common/index_patterns';
+import { SavedObject } from '../../../../../core/types';
+import { navigationPluginMock } from '../../../../navigation/public/mocks';
+import { indexPatternWithTimefieldMock } from '../../__mocks__/index_pattern_with_timefield';
+import { calcFieldCounts } from '../helpers/calc_field_counts';
+
+const mockNavigation = navigationPluginMock.createStartContract();
+
+jest.mock('../../kibana_services', () => {
+  return {
+    getServices: () => ({
+      metadata: {
+        branch: 'test',
+      },
+      capabilities: {
+        discover: {
+          save: true,
+        },
+      },
+      navigation: mockNavigation,
+    }),
+  };
+});
+
+function getProps(indexPattern: IndexPattern) {
+  const searchSourceMock = createSearchSourceMock({});
+  const state = ({} as unknown) as GetStateReturn;
+  const services = ({
+    capabilities: {
+      discover: {
+        save: true,
+      },
+    },
+  } as unknown) as DiscoverServices;
+
+  return {
+    addColumn: jest.fn(),
+    fetch: jest.fn(),
+    fetchCounter: 0,
+    fetchError: undefined,
+    fieldCounts: calcFieldCounts({}, esHits, indexPattern),
+    hits: esHits.length,
+    indexPattern,
+    minimumVisibleRows: 10,
+    onAddFilter: jest.fn(),
+    onChangeInterval: jest.fn(),
+    onMoveColumn: jest.fn(),
+    onRemoveColumn: jest.fn(),
+    onSetColumns: jest.fn(),
+    onSkipBottomButtonClick: jest.fn(),
+    onSort: jest.fn(),
+    opts: {
+      config: uiSettingsMock,
+      data: dataPluginMock.createStartContract(),
+      fixedScroll: jest.fn(),
+      filterManager: createFilterManagerMock(),
+      indexPatternList: (indexPattern as unknown) as Array<SavedObject<IndexPatternAttributes>>,
+      sampleSize: 10,
+      savedSearch: savedSearchMock,
+      setHeaderActionMenu: jest.fn(),
+      timefield: indexPattern.timeFieldName || '',
+      setAppState: jest.fn(),
+    },
+    resetQuery: jest.fn(),
+    resultState: 'ready',
+    rows: esHits,
+    searchSource: searchSourceMock,
+    setIndexPattern: jest.fn(),
+    showSaveQuery: true,
+    state: { columns: [] },
+    timefilterUpdateHandler: jest.fn(),
+    topNavMenu: getTopNavLinks({
+      getFieldCounts: jest.fn(),
+      indexPattern,
+      inspectorAdapters: inspectorPluginMock,
+      navigateTo: jest.fn(),
+      savedSearch: savedSearchMock,
+      services,
+      state,
+    }),
+    updateQuery: jest.fn(),
+    updateSavedQueryId: jest.fn(),
+  };
+}
+
+describe('Descover legacy component', () => {
+  test('selected index pattern without time field displays no chart toggle', () => {
+    const component = shallowWithIntl(<DiscoverLegacy {...getProps(indexPatternMock)} />);
+    expect(component.find('[data-test-subj="discoverChartToggle"]').length).toBe(0);
+  });
+  test('selected index pattern with time field displays chart toggle', () => {
+    const component = shallowWithIntl(
+      <DiscoverLegacy {...getProps(indexPatternWithTimefieldMock)} />
+    );
+    expect(component.find('[data-test-subj="discoverChartToggle"]').length).toBe(1);
+  });
+});

src/plugins/discover/public/application/components/discover_legacy.tsx

@@ -66,9 +66,9 @@ export interface DiscoverProps {
   addColumn: (column: string) => void;
   fetch: () => void;
   fetchCounter: number;
-  fetchError: Error;
+  fetchError?: Error;
   fieldCounts: Record<string, number>;
-  histogramData: Chart;
+  histogramData?: Chart;
   hits: number;
   indexPattern: IndexPattern;
   minimumVisibleRows: number;
@@ -300,7 +300,7 @@ export function DiscoverLegacy({
                           )}
                           className="dscTimechart"
                         >
-                          {opts.chartAggConfigs && rows.length !== 0 && (
+                          {opts.chartAggConfigs && rows.length !== 0 && histogramData && (
                             <div className="dscHistogram" data-test-subj="discoverChart">
                               <DiscoverHistogram
                                 chartData={histogramData}