log4js-node/test/sandbox-coverage.js

const sandbox = require("@log4js-node/sandboxed-module");

sandbox.configure({
  sourceTransformers: {
    nyc(source) {
      if (this.filename.indexOf("node_modules") > -1) {
        return source;
      }
      const nyc = new (require("nyc"))({});
      return nyc.instrumenter().instrumentSync(source, this.filename, { registerMap: () => {} });
    }
  }
});