[Fleet] Add unit test for mapping generation (#141795)

x-pack/plugins/fleet/server/services/epm/elasticsearch/template/mappings.test.ts

@@ -0,0 +1,50 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { keyword } from './mappings';
+
+describe('mappings', () => {
+  describe('keyword', () => {
+    it('should set ignore_above:1024 by default for indexed field', () => {
+      const mappings = keyword({
+        name: 'test',
+        type: 'keyword',
+      });
+
+      expect(mappings).toEqual({
+        ignore_above: 1024,
+        type: 'keyword',
+      });
+    });
+
+    it('should not set ignore_above for non indexed field', () => {
+      const mappings = keyword({
+        name: 'test',
+        type: 'keyword',
+        index: false,
+      });
+
+      expect(mappings).toEqual({
+        type: 'keyword',
+        index: false,
+      });
+    });
+
+    it('should not set ignore_above field with doc_values:false', () => {
+      const mappings = keyword({
+        name: 'test',
+        type: 'keyword',
+        doc_values: false,
+      });
+
+      expect(mappings).toEqual({
+        type: 'keyword',
+        doc_values: false,
+      });
+    });
+  });
+});