Add test to check custom pipeline api call (#143757)

x-pack/plugins/enterprise_search/public/applications/enterprise_search_content/api/index/create_custom_pipeline_api_logic.test.ts

@@ -0,0 +1,35 @@
+/*
+ * 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 { mockHttpValues } from '../../../__mocks__/kea_logic';
+
+import { nextTick } from '@kbn/test-jest-helpers';
+
+import { createCustomPipeline } from './create_custom_pipeline_api_logic';
+
+describe('createCustomPipelineApiLogic', () => {
+  const { http } = mockHttpValues;
+  beforeEach(() => {
+    jest.clearAllMocks();
+  });
+
+  describe('createCustomPipeline', () => {
+    it('calls correct pipeline route', async () => {
+      const responsePromise = Promise.resolve({ created: ['my-custom-pipeline'] });
+      http.post.mockReturnValue(responsePromise);
+      const result = await createCustomPipeline({ indexName: 'indexName' });
+
+      await nextTick();
+
+      expect(http.post).toHaveBeenCalledWith(
+        '/internal/enterprise_search/indices/indexName/pipelines'
+      );
+
+      expect(result).toEqual({ created: ['my-custom-pipeline'] });
+    });
+  });
+});