<!DOCTYPE html>
<!--
Copyright (c) 2015 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<link rel="import" href="/base/units/time.html">
<script>
'use strict';

tr.b.unittest.testSuite(function() {
  test('Time.ms.format', function() {
    function local(v) {
      return v.toLocaleString(undefined, { minimumFractionDigits: 3}) + ' ms';
    }

    var unit = tr.b.units.Time.supportedUnits.ms;
    assert.equal(unit.format(1), local(1));
    assert.equal(unit.format(1.001), local(1.001));
    assert.equal(unit.format(1.0005), local(1.001));
    assert.equal(unit.format(1.0004), local(1));
    assert.equal(unit.format(0.999), local(0.999));
    assert.equal(unit.format(0.9995), local(1));
  });

  test('Time.ns.format', function() {
    function local(v) {
      return v.toLocaleString(undefined, { maximumFractionDigits: 0}) + ' ns';
    }

    var unit = tr.b.units.Time.supportedUnits.ns;
    assert.equal(unit.format(1), local(1000000));
    assert.equal(unit.format(0.001), local(1000));
    assert.equal(unit.format(0.000001), local(1));
    assert.equal(unit.format(0.0000005), local(1));
    assert.equal(unit.format(0.0000004), local(0));
    assert.equal(unit.format(0.0000015), local(2));
  });

  test('Time.display-unit-changed', function() {
    var Time = tr.b.units.Time;

    var listenerWasCalled = false;
    function listener(e) {
      listenerWasCalled = true;
    }

    try {
      Time.currentDisplayUnit = Time.supportedUnits.ms;
      Time.addEventListener('display-unit-changed', listener);

      listenerWasCalled = false;
      Time.currentDisplayUnit = Time.supportedUnits.ns;
      assert.isTrue(listenerWasCalled);
      assert.equal(Time.currentDisplayUnit, Time.supportedUnits.ns);
    } finally {
      Time.removeEventListener('display-unit-changed', listener);
      Time.reset();
    }
  });
});
</script>