<!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="/core/test_utils.html">
<link rel="import" href="/ui/timeline_display_transform.html">
<link rel="import" href="/ui/tracks/chart_axis.html">
<link rel="import" href="/ui/tracks/chart_transform.html">

<script>
'use strict';

tr.b.unittest.testSuite(function() {
  var TimelineDisplayTransform = tr.ui.TimelineDisplayTransform;
  var ChartTransform = tr.ui.tracks.ChartTransform;
  var ChartAxis = tr.ui.tracks.ChartAxis;

  function buildChartTransform() {
    var displayTransform = new TimelineDisplayTransform();
    displayTransform.panX = -20;
    displayTransform.scaleX = 0.5;

    var axis = new ChartAxis(-100, 100);

    var chartTransform = new ChartTransform(
        displayTransform,
        axis,
        500, /* trackWidth */
        80, /* trackHeight */
        15, /* topPadding */
        5, /* bottomPadding */
        3 /* pixelRatio */);

    return chartTransform;
  }

  test('checkFields', function() {
    var t = buildChartTransform();

    assert.equal(t.pixelRatio, 3);

    assert.equal(t.leftViewX, 0);
    assert.equal(t.rightViewX, 500);
    assert.equal(t.leftTimestamp, 20);
    assert.equal(t.rightTimestamp, 1020);

    assert.equal(t.outerTopViewY, 0);
    assert.equal(t.innerTopViewY, 15);
    assert.equal(t.innerBottomViewY, 75);
    assert.equal(t.outerBottomViewY, 80);
  });

  test('checkWorldXToViewX', function() {
    var t = buildChartTransform();

    assert.equal(t.worldXToViewX(-100), -60);
    assert.equal(t.worldXToViewX(0), -10);
    assert.equal(t.worldXToViewX(520), 250);
    assert.equal(t.worldXToViewX(1020), 500);
    assert.equal(t.worldXToViewX(1200), 590);
  });

  test('checkViewXToWorldX', function() {
    var t = buildChartTransform();

    assert.equal(t.viewXToWorldX(-60), -100);
    assert.equal(t.viewXToWorldX(-10), 0);
    assert.equal(t.viewXToWorldX(250), 520);
    assert.equal(t.viewXToWorldX(500), 1020);
    assert.equal(t.viewXToWorldX(590), 1200);
  });

  test('checkWorldYToViewY', function() {
    var t = buildChartTransform();

    assert.equal(t.worldYToViewY(-200), 105);
    assert.equal(t.worldYToViewY(-100), 75);
    assert.equal(t.worldYToViewY(0), 45);
    assert.equal(t.worldYToViewY(100), 15);
    assert.equal(t.worldYToViewY(200), -15);
  });
});
</script>