[FTR] Refactor mocha under @kbn/test (#42862)

* Run prettier on the files that will be refactored under @kbn/test, in a follow-up pr.

* Fixup all paths to mocha,
under kbn-test, with needed
exports/imports.

* Fixed borked path (bad refactor).

* Fixup one more borked path.

* Fixup tsconfig for xml.ts

* Drop setup_node_env as it's already
in KIBANA/scripts/mocha.js.
Also, fixup cwd for globby as we are
exec-ing from a different directory.

packages/kbn-test/src/functional_test_runner/lib/mocha/reporter/reporter.js

@@ -23,12 +23,11 @@ import Mocha from 'mocha';
 import { ToolingLogTextWriter } from '@kbn/dev-utils';
 import moment from 'moment';
 
-import { setupJUnitReportGeneration } from '../../../../../../../src/dev';
+import { recordLog, snapshotLogsForRunnable, setupJUnitReportGeneration } from '../../../../mocha';
 import * as colors from './colors';
 import * as symbols from './symbols';
 import { ms } from './ms';
 import { writeEpilogue } from './write_epilogue';
-import { recordLog, snapshotLogsForRunnable } from '../../../../../../../src/dev/mocha/log_cache';
 
 export function MochaReporterProvider({ getService }) {
   const log = getService('log');

packages/kbn-test/src/index.js

@@ -32,3 +32,10 @@ export { setupUsers, DEFAULT_SUPERUSER_PASS } from './functional_tests/lib/auth'
 export { readConfigFile } from './functional_test_runner/lib/config/read_config_file';
 
 export { runFtrCli } from './functional_test_runner/cli';
+
+export {
+  createAutoJUnitReporter,
+  runMochaCli,
+  setupJUnitReportGeneration,
+  escapeCdata,
+} from './mocha';

src/dev/mocha/index.js → packages/kbn-test/src/mocha/index.js

@@ -20,3 +20,5 @@
 export { createAutoJUnitReporter } from './auto_junit_reporter';
 export { setupJUnitReportGeneration } from './junit_report_generation';
 export { runMochaCli } from './run_mocha_cli';
+export { recordLog, snapshotLogsForRunnable } from './log_cache';
+export { escapeCdata } from './xml';

src/dev/mocha/junit_report_generation.js → packages/kbn-test/src/mocha/junit_report_generation.js

@@ -25,14 +25,14 @@ import mkdirp from 'mkdirp';
 import xmlBuilder from 'xmlbuilder';
 
 import { getSnapshotOfRunnableLogs } from './log_cache';
-import { escapeCdata } from '../xml';
+import { escapeCdata } from '../';
 
 const dateNow = Date.now.bind(Date);
 
 export function setupJUnitReportGeneration(runner, options = {}) {
   const {
     reportName = 'Unnamed Mocha Tests',
-    rootDirectory = dirname(require.resolve('../../../package.json')),
+    rootDirectory = dirname(require.resolve('../../../../package.json')),
   } = options;
 
   const stats = {};

src/dev/mocha/run_mocha_cli.js → packages/kbn-test/src/mocha/run_mocha_cli.js

@@ -41,9 +41,6 @@ export function runMochaCli() {
   // prevent globals injected from canvas plugins from triggering leak check
   process.argv.push('--globals', '__core-js_shared__,core,_, ');
 
-  // ensure that mocha requires the setup_node_env script
-  process.argv.push('--require', require.resolve('../../setup_node_env'));
-
   // set default test timeout
   if (opts.timeout == null && !opts['no-timeouts']) {
     if (runInBand) {
@@ -76,7 +73,7 @@ export function runMochaCli() {
           'tasks/**/__tests__/**/*.js',
         ],
         {
-          cwd: resolve(__dirname, '../../..'),
+          cwd: resolve(__dirname, '../../../..'),
           onlyFiles: true,
           absolute: true,
           ignore: ['**/__tests__/fixtures/**', 'src/**/public/**', '**/_*.js'],

src/dev/mocha/server_junit_reporter.js → packages/kbn-test/src/mocha/server_junit_reporter.js

@@ -18,7 +18,7 @@
  */
 
 // when the reporter is loaded by mocha in child process it might be before setup_node_env
-require('../../setup_node_env');
+require('../../../../src/setup_node_env');
 
 module.exports = require('./auto_junit_reporter').createAutoJUnitReporter({
   reportName: 'Server Mocha Tests',

packages/kbn-test/tsconfig.json

@@ -2,6 +2,7 @@
   "extends": "../../tsconfig.json",
   "include": [
     "types/**/*",
-    "src/functional_test_runner/**/*"
+    "src/functional_test_runner/**/*",
+    "src/mocha/xml.ts"
   ]
 }

scripts/mocha.js

@@ -18,4 +18,4 @@
  */
 
 require('../src/setup_node_env');
-require('../src/dev/mocha').runMochaCli();
+require('@kbn/test').runMochaCli();

src/dev/index.js

@@ -20,7 +20,7 @@
 export {
   createAutoJUnitReporter,
   setupJUnitReportGeneration,
-} from './mocha';
+} from '@kbn/test';
 
 export {
   generateNoticeFromSource,

src/dev/jest/junit_reporter.js

@@ -23,7 +23,7 @@ import { writeFileSync } from 'fs';
 import mkdirp from 'mkdirp';
 import xmlBuilder from 'xmlbuilder';
 
-import { escapeCdata } from '../xml';
+import { escapeCdata } from '@kbn/test';
 
 const ROOT_DIR = dirname(require.resolve('../../../package.json'));