From c99fd72f1c2bf55b9120cc2887ab51451d016b76 Mon Sep 17 00:00:00 2001
From: Larry Gregory <larry.gregory@elastic.co>
Date: Wed, 30 Sep 2020 21:23:05 -0400
Subject: [PATCH] adding unit test

---
 .../server/routes/indices/get_fields.test.ts  | 58 +++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 x-pack/plugins/security/server/routes/indices/get_fields.test.ts

diff --git a/x-pack/plugins/security/server/routes/indices/get_fields.test.ts b/x-pack/plugins/security/server/routes/indices/get_fields.test.ts
new file mode 100644
index 0000000000000..4c6182e99431d
--- /dev/null
+++ b/x-pack/plugins/security/server/routes/indices/get_fields.test.ts
@@ -0,0 +1,58 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { httpServerMock, elasticsearchServiceMock } from '../../../../../../src/core/server/mocks';
+import { kibanaResponseFactory } from '../../../../../../src/core/server';
+
+import { routeDefinitionParamsMock } from '../index.mock';
+import { defineGetFieldsRoutes } from './get_fields';
+
+const createFieldMapping = (field: string, type: string) => ({
+  [field]: { mapping: { [field]: { type } } },
+});
+
+const createEmptyFieldMapping = (field: string) => ({ [field]: { mapping: {} } });
+
+const mockFieldMappingResponse = {
+  foo: {
+    mappings: {
+      ...createFieldMapping('fooField', 'keyword'),
+      ...createFieldMapping('commonField', 'keyword'),
+      ...createEmptyFieldMapping('emptyField'),
+    },
+  },
+  bar: {
+    mappings: {
+      ...createFieldMapping('commonField', 'keyword'),
+      ...createFieldMapping('barField', 'keyword'),
+      ...createFieldMapping('runtimeField', 'runtime'),
+    },
+  },
+};
+
+describe('GET /internal/security/fields/{query}', () => {
+  it('returns a list of deduplicated fields, omitting empty and runtime fields', async () => {
+    const mockRouteDefinitionParams = routeDefinitionParamsMock.create();
+
+    const scopedClient = elasticsearchServiceMock.createLegacyScopedClusterClient();
+    scopedClient.callAsCurrentUser.mockResolvedValue(mockFieldMappingResponse);
+    mockRouteDefinitionParams.clusterClient.asScoped.mockReturnValue(scopedClient);
+
+    defineGetFieldsRoutes(mockRouteDefinitionParams);
+
+    const [[, handler]] = mockRouteDefinitionParams.router.get.mock.calls;
+
+    const headers = { authorization: 'foo' };
+    const mockRequest = httpServerMock.createKibanaRequest({
+      method: 'get',
+      path: `/internal/security/fields/foo`,
+      headers,
+    });
+    const response = await handler({} as any, mockRequest, kibanaResponseFactory);
+    expect(response.status).toBe(200);
+    expect(response.payload).toEqual(['fooField', 'commonField', 'barField']);
+  });
+});