dwayne-test-utils v1.1.0

dwayne-test-utils

Small test plugin for testing Dwayne in node environment (though it works in browser environment as well).

The module exports doc, html, body and head vars (which are equal to the ones, that Dwayne exports in browser env, and are generated with a help of jsdom in node env).

It exports initApp and deferTest functions as well.

API

initApp(block)

The module creates a div container for a test app. The function returns a function which, when called once, initializes the app and, when called twice, removes it. Example:

import { initApp } from 'dwayne-test-utils';
import { strictEqual } from 'assert';
import { Block } from 'dwayne';

class App extends Block {}

describe('some test', () => {
  let remove;

  before(remove = initApp(App));
  after(remove);

  it('should test something', () => {
    // access root block through global.$app
    // access container through global.$container

    strictEqual(a, b);
  });
});

test(done, testFn)

The function calls testFn inside try/catch block. If the call was successful, done is called without arguments, and if it wasn't it's called with the error argument. Example:

import { test } from 'dwayne-test-utils';
import { strictEqual } from 'assert';

describe('it should test events', () => {
  it('should test something inside a callback', (done) => {
    action(() => {
      test(done, () => {
        strictEqual(a, b);
      });
    });
  });
});

deferTest(done, testFn, interval)

The function calls testFn in interval milliseconds inside try/catch block. If the call was successful, done is called without arguments, and if it wasn't it's called with the error argument. Example:

import { deferTest } from 'dwayne-test-utils';
import { strictEqual } from 'assert';

describe('it should test events', () => {
  it('should handle clicks', (done) => {
    deferTest(done, () => {
      strictEqual(a, b);
    }, 100);

    container
      .find('div')
      .dispatch('click');
  });
});