[FTR] Refactor mocha under @kbn/test (elastic#42862) (elastic#83369)

* 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.

Co-authored-by: Tre <wayne.seymour@elastic.co>

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.ts

@@ -46,6 +46,13 @@ export { readConfigFile } from './functional_test_runner/lib/config/read_config_
 
 export { runFtrCli } from './functional_test_runner/cli';
 
+export {
+  createAutoJUnitReporter,
+  runMochaCli,
+  setupJUnitReportGeneration,
+  escapeCdata,
+} from './mocha';
+
 export { runFailedTestsReporterCli } from './failed_tests_reporter';
 
 export { CI_PARALLEL_PROCESS_PREFIX } from './ci_parallel_process_prefix';

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

@@ -23,3 +23,7 @@ export { createAutoJUnitReporter } from './auto_junit_reporter';
 export { setupJUnitReportGeneration } from './junit_report_generation';
 // @ts-ignore not typed yet
 export { runMochaCli } from './run_mocha_cli';
+// @ts-ignore not typed yet
+export { recordLog, snapshotLogsForRunnable } from './log_cache';
+// @ts-ignore not typed yet
+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 xmlBuilder from 'xmlbuilder';
 import { getUniqueJunitReportPath } from '@kbn/test';
 
 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')),
     getTestMetadata = () => ({}),
   } = options;
 

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

@@ -40,9 +40,6 @@ 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) {

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',

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

@@ -17,6 +17,6 @@
  * under the License.
  */
 
-export { createAutoJUnitReporter, setupJUnitReportGeneration } from './mocha';
+export { createAutoJUnitReporter, setupJUnitReportGeneration } from '@kbn/test';
 
 export { generateNoticeFromSource } from './notice';