Testing error sanitization

models-error-test.js

'use strict';

const assert = require('assert');

class ModelsError extends Error {
  constructor(message, file, fileType) {
    super(message);

    this.name = 'ModelsError';
    this.file = file;
    this.fileType = fileType;
  }
  sanitize() {
    return Object.getOwnPropertyNames(this).reduce((sanitized, prop) => {
      sanitized[prop] = prop === 'file' || prop === 'stack' ?
        'sanitized' :
        this[prop];
      return sanitized;
    }, {});
  }
}

const e = new ModelsError(
  'To error is to COINS',
  '/path/to/bad.nifti',
  'NIFTI'
);

try {
  assert.deepEqual(
    e.sanitize(),
    {
      file: 'sanitized',
      fileType: 'NIFTI',
      message: 'To error is to COINS',
      name: 'ModelsError',
      stack: 'sanitized',
    }
  );
  console.log('👍  Sanitized');
} catch (error) {
  console.error('😮  Unsanitized', error);
}