Move Mocha config into .mocharc.yml (graphql#1743)

Author: IvanGoncharov

.mocharc.yml

@@ -0,0 +1,5 @@
+throw-deprecation: true
+check-leaks: true
+require:
+ - '@babel/register'
+ - '@babel/polyfill'

package.json

@@ -25,8 +25,8 @@
  "watch": "node ./resources/watch.js",
  "test": "npm run lint && npm run check && npm run testonly",
  "test:ci": "npm run lint && npm run check && npm run testonly:cover",
- "t": "mocha --require @babel/register --require @babel/polyfill",
- "testonly": "mocha --throw-deprecation --require @babel/register --require @babel/polyfill --check-leaks --full-trace src/**/__tests__/**/*-test.js",
+ "t": "mocha",
+ "testonly": "mocha --full-trace src/**/__tests__/**/*-test.js",
  "testonly:cover": "nyc --clean --skip-full --reporter json --reporter html --reporter text -- npm run testonly",
  "lint": "eslint --report-unused-disable-directives src || (printf '\\033[33mTry: \\033[7m npm run lint -- --fix \\033[0m\\n' && exit 1)",
  "benchmark": "node ./resources/benchmark.js",

resources/watch.js

@@ -136,14 +136,7 @@ function runTests(filepaths) {
 
  return exec(
  'mocha',
- [
- '--reporter',
- 'progress',
- '--require',
- '@babel/register',
- '--require',
- '@babel/polyfill',
- ].concat(
+ ['--reporter', 'progress'].concat(
  allTests(filepaths)
  ? filepaths.map(srcPath)
  : ['src/**/__tests__/**/*-test.js']