tests.js

import expect from 'expect.js';
import ngMock from 'ngMock';
import RegistryFieldFormatsProvider from 'ui/registry/field_formats';

describe('Duration Format', function () {
  var fieldFormats;
  var DurationFormat;

  beforeEach(ngMock.module('kibana'));
  beforeEach(ngMock.inject(function (Private) {
    fieldFormats = Private(RegistryFieldFormatsProvider);
    DurationFormat = fieldFormats.getType('duration');
  }));

  function test(inputFormat, outputFormat, outputPrecision) {
    return function doTest(input, output) {
      it(`should format "${input} [${inputFormat}]" input as duration [${outputFormat}:${outputPrecision}]`, () => {
        const duration = new DurationFormat({ inputFormat, outputFormat, outputPrecision });
        expect(duration.convert(input)).to.eql(output);
      });
      return doTest;
    };
  }

  test({ inputFormat: 'seconds', outputFormat: 'humanize' })
    (-60, 'minus a minute')
    (60,  'a minute')
    (125, '2 minutes');

  test({ inputFormat: 'seconds', outputFormat: 'asSeconds', outputPrecision: 0 })
    (-60, '-60')
    (60,  '60')
    (125, '125');

  test({ inputFormat: 'seconds', outputFormat: 'asSeconds', outputPrecision: 2 })
    (-60, '-60.00')
    (60,  '60.00')
    (125, '125.00');

  test({ inputFormat: 'minutes', outputFormat: 'humanize' })
    (-60, 'minus an hour')
    (60,  'an hour')
    (125, '2 hours');
});