Fix Datasource testing connection don't validate endpoints with path

CHANGELOG.md

@@ -42,6 +42,7 @@ Inspired from [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 - [BUG][Discover] Fix what is displayed in `selected fields` when removing columns from canvas [#5537](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5537)
 - [BUG][Discover] Fix advanced setting `discover:modifyColumnsOnSwitch` ([#5508](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5508))
 - [Discover] Fix missing index pattern field from breaking Discover [#5626](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5626)
+- [BUG][Multiple Datasource] fix Datasource testing connection don't validate endpoints with path [#5663](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/5663)
 
 ### 🚞 Infrastructure
 

src/plugins/data_source_management/public/components/utils.test.ts

@@ -212,6 +212,9 @@ describe('DataSourceManagement: Utils.ts', () => {
     expect(isValidUrl('')).toBeFalsy();
     expect(isValidUrl('test')).toBeFalsy();
 
+    /* False cases: path name scenario*/
+    expect(isValidUrl('https://test.com/_somepath')).toBeFalsy();
+
     /* True cases */
     expect(isValidUrl('https://test.com')).toBeTruthy();
     expect(isValidUrl('http://test.com')).toBeTruthy();

src/plugins/data_source_management/public/components/utils.ts

@@ -103,7 +103,11 @@ export async function testConnection(
 export const isValidUrl = (endpoint: string) => {
   try {
     const url = new URL(endpoint);
-    return Boolean(url) && (url.protocol === 'http:' || url.protocol === 'https:');
+    return (
+      Boolean(url) &&
+      (url.protocol === 'http:' || url.protocol === 'https:') &&
+      (!url.pathname || url.pathname.length === 0 || url.pathname === '/')
+    );
   } catch (e) {
     return false;
   }

src/plugins/data_source_management/public/components/validation/datasource_form_validation.test.ts

@@ -7,7 +7,11 @@ import { AuthType } from '../../types';
 import { CreateDataSourceState } from '../create_data_source_wizard/components/create_form/create_data_source_form';
 import { EditDataSourceState } from '../edit_data_source/components/edit_form/edit_data_source_form';
 import { defaultValidation, performDataSourceFormValidation } from './datasource_form_validation';
-import { mockDataSourceAttributesWithAuth } from '../../mocks';
+import {
+  mockDataSourceAttributesWithAuth,
+  mockDataSourceAttributesWithValidEndpoint,
+  mockDataSourceAttributesWithInvalidEndpoint,
+} from '../../mocks';
 
 describe('DataSourceManagement: Form Validation', () => {
   describe('validate create/edit datasource', () => {
@@ -49,6 +53,18 @@ describe('DataSourceManagement: Form Validation', () => {
       const result = performDataSourceFormValidation(form, [], '');
       expect(result).toBe(false);
     });
+    test('should fail validation when endpoint path is not empty', () => {
+      form.endpoint = mockDataSourceAttributesWithInvalidEndpoint.endpoint;
+      const result = performDataSourceFormValidation(form, [], '');
+      expect(result).toBe(false);
+    });
+    test('should NOT fail validation when endpoint path is empty', () => {
+      form.auth.type = AuthType.NoAuth;
+      form.title = 'test';
+      form.endpoint = mockDataSourceAttributesWithValidEndpoint.endpoint;
+      const result = performDataSourceFormValidation(form, [], '');
+      expect(result).toBe(true);
+    });
     test('should NOT fail validation on empty username/password when  No Auth is selected', () => {
       form.auth.type = AuthType.NoAuth;
       form.title = 'test';

src/plugins/data_source_management/public/mocks.ts

@@ -131,6 +131,34 @@ export const getMappedDataSources = [
   },
 ];
 
+export const mockDataSourceAttributesWithValidEndpoint = {
+  id: 'test',
+  title: 'create-test-ds',
+  description: 'jest testing',
+  endpoint: 'https://test.com',
+  auth: {
+    type: AuthType.UsernamePasswordType,
+    credentials: {
+      username: 'test123',
+      password: 'test123',
+    },
+  },
+};
+
+export const mockDataSourceAttributesWithInvalidEndpoint = {
+  id: 'test',
+  title: 'create-test-ds',
+  description: 'jest testing',
+  endpoint: 'https://test.com/_somepath',
+  auth: {
+    type: AuthType.UsernamePasswordType,
+    credentials: {
+      username: 'test123',
+      password: 'test123',
+    },
+  },
+};
+
 export const mockDataSourceAttributesWithAuth = {
   id: 'test',
   title: 'create-test-ds',