text: const assert = require('assert');
  
  const getenv = require('../index');
  
  const tests = {};
  
  tests['getenv.disableErrors() should disable any errors'] = function() {
    getenv.disableErrors();
    assert.strictEqual(getenv.string('url', 'http://localhost'), 'http://localhost');
    assert(getenv.string('url'), undefined);
  };
  
  tests['getenv.enableErrors() should enable errors'] = function() {
    getenv.enableErrors();
    assert.throws(function() {
      getenv.string('url');
    });
    assert.strictEqual(getenv.string('url', 'http://localhost'), 'http://localhost');
  };
  
  Object.keys(tests).forEach(function(key) {
    console.log('Test: %s', key);
    tests[key]();
  });
  