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var supertape = require("supertape")

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supertape v2.0.1

tape with superpowers

Supertape NPM version Dependency Status Build Status Coverage Status

Tape with superpowers. Contains:

  • ability to work with esm modules;
  • shows diff when test not equal or not deepEqual;
  • add jsonEqual that converts to json before checking isEqual;
  • produce deteiled stack traces for async functions;


npm i supertape -D


You can convert your codebase from tape to supertape with help of a convert-tape-to-supertape codemod. Here is example of a result.


const test = require('supertape');

test('lib: arguments', async (t) => {
    throw Error('hello');
    // will call with an error
    // will call t.end

test('lib: diff', async (t) => {
    t.equal({}, {hello: 'world'}, 'should equal');

// output
- Expected
+ Received

- Object {}
+ Object {
+   "hello": "world",
+ }


  • try-to-tape - wrap tape async functions and show error on reject;
  • @cloudcmd/stub - simplest sinon.stub alternative with diff support;



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