[Tests] Migrate mocha tests to jest (opensearch-project#1553)

- `src/dev`
  - migrate mocha tests to jest
- `src/test_utils`
  - migrate mocha tests to jest
- `src/dev/license_checker`
  - migrate mocha tests to jest
- `src/legacy/utils`
  - migrate mocha tests to jest
  - convert to typescript
  - add unit test for `version.ts`
- `src/plugins/console/server`
  - migrate mocha tests to jest
  - convert to typescript
  - fix type errors
  - improve test cases
  - update URL parsing
- `packages/opensearch-datemath
  - migrate mocha tests to jest
  - convert to typescript
- `packages/osd-eslint-plugin-eslint`
  - migrate mocha tests to jest
  - rename test file directory
- `packages/osd-opensearch-archiver`
  - migrate mocha tests to jest
  - rename stub directory
- `packages/osd-test`
  - migrate mocha tests to jest
  - remove mocha timeouts (not needed in jest)
  - linting fixes
- `packages/osd-test-subject-selector`
  - migrate mocha tests to jest
  - convert to typescript
  - update tsconfig to transpile ts
  - switch to named exports/imports

Verified that 410 of previous 411 mocha test cases are correctly ran by jest.
Mocha: 1 passing test (mocha report generation, which will be removed in opensearch-project#1572)
Jest: 11155 passing tests (11155 = 10741 previous jest tests + 4 newly added jest test + 410 migrated mocha tests)

Resolves opensearch-project#215 

Signed-off-by: Josh Romero <rmerqg@amazon.com>

packages/opensearch-datemath/__tests__/index.js → packages/opensearch-datemath/index.test.ts

@@ -28,10 +28,10 @@
  * under the License.
  */
 
-const dateMath = require('../index');
-const moment = require('moment');
-const sinon = require('sinon');
-const expect = require('@osd/expect');
+import dateMath from './index';
+import moment from 'moment';
+import sinon from 'sinon';
+import expect from '@osd/expect';
 
 /**
  * Require a new instance of the moment library, bypassing the require cache.
@@ -43,6 +43,7 @@ const expect = require('@osd/expect');
  * of moment, by deleting the require cache and require the library again.
  */
 function momentClone() {
+  jest.resetModules();
   delete require.cache[require.resolve('moment')];
   return require('moment');
 }
@@ -58,7 +59,7 @@ describe('dateMath', function () {
 
   describe('errors', function () {
     it('should return undefined if passed something falsy', function () {
-      expect(dateMath.parse()).to.be(undefined);
+      expect(dateMath.parse('')).to.be(undefined);
     });
 
     it('should return undefined if I pass an operator besides [+-/]', function () {
@@ -82,11 +83,13 @@ describe('dateMath', function () {
 
     describe('forceNow', function () {
       it('should throw an Error if passed a string', function () {
+        // @ts-ignore bad arg
         const fn = () => dateMath.parse('now', { forceNow: '2000-01-01T00:00:00.000Z' });
         expect(fn).to.throwError();
       });
 
       it('should throw an Error if passed a moment', function () {
+        // @ts-ignore bad arg
         expect(() => dateMath.parse('now', { forceNow: moment() })).to.throwError();
       });
 

packages/osd-eslint-plugin-eslint/rules/__tests__/disallow_license_headers.js → packages/osd-eslint-plugin-eslint/rules/disallow_license_headers.test.js

@@ -29,7 +29,7 @@
  */
 
 const { RuleTester } = require('eslint');
-const rule = require('../disallow_license_headers');
+const rule = require('./disallow_license_headers');
 const dedent = require('dedent');
 
 const ruleTester = new RuleTester({

packages/osd-eslint-plugin-eslint/rules/__tests__/no_restricted_paths.js → packages/osd-eslint-plugin-eslint/rules/no_restricted_paths.test.js

@@ -40,7 +40,7 @@
 
 const path = require('path');
 const { RuleTester } = require('eslint');
-const rule = require('../no_restricted_paths');
+const rule = require('./no_restricted_paths');
 
 const ruleTester = new RuleTester({
   parser: require.resolve('babel-eslint'),
@@ -54,37 +54,37 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
   valid: [
     {
       code: 'import a from "../client/a.js"',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/server/**/*',
-              from: 'files/no_restricted_paths/other/**/*',
+              target: 'testfiles/no_restricted_paths/server/**/*',
+              from: 'testfiles/no_restricted_paths/other/**/*',
             },
           ],
         },
       ],
     },
     {
       code: 'const a = require("../client/a.js")',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/server/**/*',
-              from: 'files/no_restricted_paths/other/**/*',
+              target: 'testfiles/no_restricted_paths/server/**/*',
+              from: 'testfiles/no_restricted_paths/other/**/*',
             },
           ],
         },
       ],
     },
     {
       code: 'import b from "../server/b.js"',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
@@ -109,14 +109,14 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     },
     {
       code: 'notrequire("../server/b.js")',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/client/**/*',
-              from: 'files/no_restricted_paths/server/**/*',
+              target: 'testfiles/no_restricted_paths/client/**/*',
+              from: 'testfiles/no_restricted_paths/server/**/*',
             },
           ],
         },
@@ -153,31 +153,34 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
 
     {
       code: 'const d = require("./deep/d.js")',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
               allowSameFolder: true,
-              target: 'files/no_restricted_paths/**/*',
-              from: 'files/no_restricted_paths/**/*',
+              target: 'testfiles/no_restricted_paths/**/*',
+              from: 'testfiles/no_restricted_paths/**/*',
             },
           ],
         },
       ],
     },
     {
       code: 'const d = require("./deep/d.js")',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
               allowSameFolder: true,
-              target: 'files/no_restricted_paths/**/*',
-              from: ['files/no_restricted_paths/**/*', '!files/no_restricted_paths/server/b*'],
+              target: 'testfiles/no_restricted_paths/**/*',
+              from: [
+                'testfiles/no_restricted_paths/**/*',
+                '!testfiles/no_restricted_paths/server/b*',
+              ],
             },
           ],
         },
@@ -187,16 +190,16 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     {
       // Check if dirs that start with 'index' work correctly.
       code: 'import { X } from "./index_patterns"',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: ['files/no_restricted_paths/(public|server)/**/*'],
+              target: ['testfiles/no_restricted_paths/(public|server)/**/*'],
               from: [
-                'files/no_restricted_paths/server/**/*',
-                '!files/no_restricted_paths/server/index.{ts,tsx}',
+                'testfiles/no_restricted_paths/server/**/*',
+                '!testfiles/no_restricted_paths/server/index.{ts,tsx}',
               ],
               allowSameFolder: true,
             },
@@ -209,14 +212,14 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
   invalid: [
     {
       code: 'export { b } from "../server/b.js"',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/client/**/*',
-              from: 'files/no_restricted_paths/server/**/*',
+              target: 'testfiles/no_restricted_paths/client/**/*',
+              from: 'testfiles/no_restricted_paths/server/**/*',
             },
           ],
         },
@@ -231,14 +234,14 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     },
     {
       code: 'import b from "../server/b.js"',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/client/**/*',
-              from: 'files/no_restricted_paths/server/**/*',
+              target: 'testfiles/no_restricted_paths/client/**/*',
+              from: 'testfiles/no_restricted_paths/server/**/*',
             },
           ],
         },
@@ -253,18 +256,18 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     },
     {
       code: 'import a from "../client/a"\nimport c from "./c"',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/server/**/*',
-              from: 'files/no_restricted_paths/client/**/*',
+              target: 'testfiles/no_restricted_paths/server/**/*',
+              from: 'testfiles/no_restricted_paths/client/**/*',
             },
             {
-              target: 'files/no_restricted_paths/server/**/*',
-              from: 'files/no_restricted_paths/server/c.js',
+              target: 'testfiles/no_restricted_paths/server/**/*',
+              from: 'testfiles/no_restricted_paths/server/c.js',
             },
           ],
         },
@@ -284,7 +287,7 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     },
     {
       code: 'const b = require("../server/b.js")',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
@@ -306,10 +309,10 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     },
     {
       code: 'const b = require("../server/b.js")',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
-          basePath: path.join(__dirname, 'files', 'no_restricted_paths'),
+          basePath: path.join(__dirname, 'testfiles', 'no_restricted_paths'),
           zones: [
             {
               target: 'client/**/*',
@@ -329,14 +332,14 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
 
     {
       code: 'const d = require("./deep/d.js")',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/**/*',
-              from: 'files/no_restricted_paths/**/*',
+              target: 'testfiles/no_restricted_paths/**/*',
+              from: 'testfiles/no_restricted_paths/**/*',
             },
           ],
         },
@@ -353,13 +356,13 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     {
       // Does not allow to import deeply within Core, using "src/core/..." Webpack alias.
       code: 'const d = require("src/core/server/saved_objects")',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: 'files/no_restricted_paths/**/*',
+              target: 'testfiles/no_restricted_paths/**/*',
               from: 'src/core/server/**/*',
             },
           ],
@@ -377,14 +380,14 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     {
       // Does not allow to import "ui/kfetch".
       code: 'const d = require("ui/kfetch")',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
               from: ['src/legacy/ui/**/*', 'ui/**/*'],
-              target: 'files/no_restricted_paths/**/*',
+              target: 'testfiles/no_restricted_paths/**/*',
               allowSameFolder: true,
             },
           ],
@@ -402,14 +405,14 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
     {
       // Does not allow to import deeply "ui/kfetch/public/index".
       code: 'const d = require("ui/kfetch/public/index")',
-      filename: path.join(__dirname, './files/no_restricted_paths/client/a.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/client/a.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
               from: ['src/legacy/ui/**/*', 'ui/**/*'],
-              target: 'files/no_restricted_paths/**/*',
+              target: 'testfiles/no_restricted_paths/**/*',
               allowSameFolder: true,
             },
           ],
@@ -428,16 +431,16 @@ ruleTester.run('@osd/eslint/no-restricted-paths', rule, {
       // Don't use index*.
       // It won't work with dirs that start with 'index'.
       code: 'import { X } from "./index_patterns"',
-      filename: path.join(__dirname, './files/no_restricted_paths/server/b.js'),
+      filename: path.join(__dirname, './testfiles/no_restricted_paths/server/b.js'),
       options: [
         {
           basePath: __dirname,
           zones: [
             {
-              target: ['files/no_restricted_paths/(public|server)/**/*'],
+              target: ['testfiles/no_restricted_paths/(public|server)/**/*'],
               from: [
-                'files/no_restricted_paths/server/**/*',
-                '!files/no_restricted_paths/server/index*',
+                'testfiles/no_restricted_paths/server/**/*',
+                '!testfiles/no_restricted_paths/server/index*',
               ],
               allowSameFolder: true,
             },

packages/osd-eslint-plugin-eslint/rules/__tests__/require_license_header.js → packages/osd-eslint-plugin-eslint/rules/require_license_header.test.js

@@ -29,7 +29,7 @@
  */
 
 const { RuleTester } = require('eslint');
-const rule = require('../require_license_header');
+const rule = require('./require_license_header');
 const dedent = require('dedent');
 
 const ruleTester = new RuleTester({

packages/osd-opensearch-archiver/src/lib/archives/__tests__/format.ts → packages/osd-opensearch-archiver/src/lib/archives/format.test.ts

@@ -33,9 +33,9 @@ import { createGunzip } from 'zlib';
 
 import expect from '@osd/expect';
 
-import { createListStream, createPromiseFromStreams, createConcatStream } from '../../streams';
+import { createListStream, createPromiseFromStreams, createConcatStream } from '../streams';
 
-import { createFormatArchiveStreams } from '../format';
+import { createFormatArchiveStreams } from './format';
 
 const INPUTS = [1, 2, { foo: 'bar' }, [1, 2]];
 const INPUT_JSON = INPUTS.map((i) => JSON.stringify(i, null, 2)).join('\n\n');