src/third_party/devtools/node_modules/mocha/lib/mocharc.json

{
  "diff": true,
  "extension": ["js"],
  "opts": "./test/mocha.opts",
  "package": "./package.json",
  "reporter": "spec",
  "slow": 75,
  "timeout": 2000,
  "ui": "bdd"
}