[Discover] Refactor discover.js controller topnav code

src/plugins/data/common/search/search_source/mocks.ts

@@ -28,6 +28,7 @@ export const searchSourceInstanceMock: MockedKeys<ISearchSource> = {
   setPreferredSearchStrategyId: jest.fn(),
   setFields: jest.fn().mockReturnThis(),
   setField: jest.fn().mockReturnThis(),
+  removeField: jest.fn().mockReturnThis(),
   getId: jest.fn(),
   getFields: jest.fn(),
   getField: jest.fn(),

src/plugins/data/common/search/search_source/search_source.ts

@@ -142,13 +142,22 @@ export class SearchSource {
    */
   setField<K extends keyof SearchSourceFields>(field: K, value: SearchSourceFields[K]) {
     if (value == null) {
-      delete this.fields[field];
+      return this.removeField(field);
     } else {
       this.fields[field] = value;
     }
     return this;
   }
 
+  /**
+   * remove field
+   * @param field: field name
+   */
+  removeField<K extends keyof SearchSourceFields>(field: K) {
+    delete this.fields[field];
+    return this;
+  }
+
   /**
    * Internal, do not use. Overrides all search source fields with the new field array.
    *

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

@@ -0,0 +1,30 @@
+/*
+ * 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 '../../../../core/public';
+
+export const configMock = ({
+  get: (key: string) => {
+    if (key === 'defaultIndex') {
+      return 'the-index-pattern-id';
+    }
+
+    return '';
+  },
+} as unknown) as IUiSettingsClient;

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

@@ -0,0 +1,74 @@
+/*
+ * 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 { IndexPattern, indexPatterns } from '../kibana_services';
+import { IIndexPatternFieldList } from '../../../data/common/index_patterns/fields';
+
+const fields = [
+  {
+    name: '_index',
+    type: 'string',
+    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: 'the-index-pattern-id',
+  title: 'the-index-pattern-title',
+  metaFields: ['_index', '_score'],
+  flattenHit: undefined,
+  formatHit: jest.fn((hit) => hit._source),
+  fields,
+  getComputedFields: () => ({}),
+  getSourceFiltering: () => ({}),
+  getFieldByName: () => ({}),
+} as unknown) as IndexPattern;
+
+indexPattern.flattenHit = indexPatterns.flattenHitWrapper(indexPattern, indexPattern.metaFields);
+
+export const indexPatternMock = indexPattern;

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

@@ -0,0 +1,32 @@
+/*
+ * 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 { IndexPatternsService } from '../../../data/common';
+import { indexPatternMock } from './index_pattern';
+
+export const indexPatternsMock = ({
+  getCache: () => {
+    return [indexPatternMock];
+  },
+  get: (id: string) => {
+    if (id === 'the-index-pattern-id') {
+      return indexPatternMock;
+    }
+  },
+} as unknown) as IndexPatternsService;

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

@@ -0,0 +1,41 @@
+/*
+ * 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 { SavedSearch } from '../saved_searches';
+
+export const savedSearchMock = ({
+  id: 'the-saved-search-id',
+  type: 'search',
+  attributes: {
+    title: 'the-saved-search-title',
+    kibanaSavedObjectMeta: {
+      searchSourceJSON:
+        '{"highlightAll":true,"version":true,"query":{"query":"foo : \\"bar\\" ","language":"kuery"},"filter":[],"indexRefName":"kibanaSavedObjectMeta.searchSourceJSON.index"}',
+    },
+  },
+  references: [
+    {
+      name: 'kibanaSavedObjectMeta.searchSourceJSON.index',
+      type: 'index-pattern',
+      id: 'the-index-pattern-id',
+    },
+  ],
+  migrationVersion: { search: '7.5.0' },
+  error: undefined,
+} as unknown) as SavedSearch;