Interactive JS Tester

Test the functions and objects you wrote in a real-time terminal shell, analogous to IPython.embed().

Example

Suppose this is the code you want to test:

function DogToBeTested (name) {
  this.name = name;
};

module.exports = {
  DogToBeTested, 
};

Simply add this to the end of the file:

if (require.main === module) {  // so the test doesn't run when your code is imported 
  const interactiveTester = require('./interactiveTester');
  interactiveTester({
    console,            // always provide `console`
    ...module.exports,  // the exported things to be tested
    dog: new DogToBeTested('Stanley'), // maybe a sample object too
  });
}

Then, running the file will give you an interacitve terminal interface just like Node.js, but with your functions and objects loaded.

> dog
DogToBeTested { name: 'Stanley' }
> `hello, ${dog.name}`
hello, Stanley
> 

Notice

• Pressing Ctrl-C ONLY ONCE will quit the script. Be careful.
• We do not support "hot reload" yet. After you modify your script, please run your script again to see the changes.

Discussion

Possible shorthand?

If not in strict mode, it is tempting to use a short hand

{
  ...(function(){return this;})(), 
}

as the context object. However, that doesn't work, because console and many other global variables are not in the unspreaded object.
Is there a way to make this work? If you know, please submit a request!