<!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="/core/tracks/track.html">
<link rel="import" href="/core/ui_state.html">

<script>
'use strict';

tr.b.unittest.testSuite(function() {
  var UIState = tr.c.UIState;

  function FakeModel() {
    this.processes = { 1: { threads: { 2: { stableId: '1.2' } } } };
  }

  // FakeTrack needs to be an instance of tr.c.tracks.Track because a
  // location is constructed in terms of Track instances.
  function FakeTrack() { }
  FakeTrack.prototype = {
    __proto__: tr.c.tracks.Track.prototype,

    get eventContainer() {
      return { stableId: '1.2' };
    },

    getBoundingClientRect: function() {
      return { top: 5, height: 2 };
    },

    get parentElement() {
      return null;
    }
  };

  function FakeViewPort() {
    this.containerToTrackObj = {
      // "1.2" is the only valid stableId this test function accepts.
      getTrackByStableId: function(stableId) {
        if (stableId === '1.2')
          return new FakeTrack;
        return undefined;
      }
    };
  }

  test('invalidStableId', function() {
    var model = new FakeModel;
    var vp = new FakeViewPort;
    assert.throws(function() {
      UIState.fromUserFriendlyString(model, vp, '15@1.3x6');
    });
    assert.throws(function() {
      UIState.fromUserFriendlyString(model, vp, '15@2.2x6');
    });
    assert.throws(function() {
      UIState.fromUserFriendlyString(model, vp, '505@1.x5');
    });
  });

  test('invalidScaleX', function() {
    var model = new FakeModel;
    var vp = new FakeViewPort;
    assert.isUndefined(UIState.fromUserFriendlyString(model, vp, '1@1.2x-1'));
    assert.throws(function() {
      UIState.fromUserFriendlyString(model, vp, '1@1.2x0');
    });
  });

  test('invalidSyntax', function() {
    var model = new FakeModel;
    var vp = new FakeViewPort;
    assert.isUndefined(UIState.fromUserFriendlyString(model, vp, '5'));
    assert.isUndefined(UIState.fromUserFriendlyString(model, vp, '5@x5'));
    assert.isUndefined(UIState.fromUserFriendlyString(model, vp, 'ab@1.2x5'));
  });

  test('validString', function() {
    var model = new FakeModel;
    var vp = new FakeViewPort;
    var str = '-50125.51231@1.2x1.12345';
    var uiState = UIState.fromUserFriendlyString(model, vp, str);

    assert.isDefined(uiState);
    assert.equal(uiState.location.xWorld, -50125.51231);
    assert.equal(
        uiState.location.getContainingTrack(vp).eventContainer.stableId,
        '1.2');
    assert.equal(uiState.scaleX, 1.12345);

    assert.equal(uiState.toUserFriendlyString(vp), str);
  });
});
</script>