tracing/tracing/ui/tracks/chart_axis_test.html - external/trace-viewer - Git at Google

 <!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/range.html">
 <link rel="import" href="/core/test_utils.html">
 <link rel="import" href="/ui/tracks/chart_axis.html">
 <link rel="import" href="/ui/tracks/chart_point.html">
 <link rel="import" href="/ui/tracks/chart_series.html">

 <script>
 'use strict';

 tr.b.unittest.testSuite(function() {
   var ChartAxis = tr.ui.tracks.ChartAxis;
   var ChartPoint = tr.ui.tracks.ChartPoint;
   var ChartSeries = tr.ui.tracks.ChartSeries;
   var Range = tr.b.Range;

   function buildRange() {
     var range = new Range();
     for (var i = 0; i < arguments.length; i++)
       range.addValue(arguments[i]);
     return range;
   }

   function buildSeries() {
     var points = [];
     for (var i = 0; i < arguments.length; i++) {
       points.push(new ChartPoint(undefined, i, arguments[i]));
     }
     return new ChartSeries(points, new ChartAxis());
   }

   test('instantiate_emptyBounds', function() {
     var axis = new ChartAxis();
     assert.isTrue(axis.bounds.isEmpty);
   });

   test('instantiate_nonEmptyBounds', function() {
     var axis = new ChartAxis(-2, 12);
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, -2);
     assert.equal(axis.bounds.max, 12);
   });

   test('instantiate_equalBounds', function() {
     var axis = new ChartAxis(2.72);
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 2.72);
     assert.equal(axis.bounds.max, 2.72);
   });

   test('checkValueToUnitRange_emptyBounds', function() {
     var axis = new ChartAxis();
     assert.throws(function() { axis.valueToUnitRange(42); });
   });

   test('checkValueToUnitRange_nonEmptyBounds', function() {
     var axis = new ChartAxis(10, 20);

     assert.equal(axis.valueToUnitRange(0), -1);
     assert.equal(axis.valueToUnitRange(10), 0);
     assert.equal(axis.valueToUnitRange(15), 0.5);
     assert.equal(axis.valueToUnitRange(20), 1);
     assert.equal(axis.valueToUnitRange(30), 2);
   });

   test('checkValueToUnitRange_equalBounds', function() {
     var axis = new ChartAxis(3.14);

     assert.equal(axis.valueToUnitRange(0), 0);
     assert.equal(axis.valueToUnitRange(3.14), 0);
     assert.equal(axis.valueToUnitRange(6.28), 0);
   });

   test('checkAutoSetFromRange_emptyBounds', function() {
     // Empty range.
     var axis = new ChartAxis();
     axis.autoSetFromRange(buildRange());
     assert.isTrue(axis.bounds.isEmpty);

     // Non-empty range.
     var axis = new ChartAxis();
     axis.autoSetFromRange(buildRange(-1, 3));
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, -1);
     assert.equal(axis.bounds.max, 3);
   });

   test('checkAutoSetFromRange_nonEmptyBounds', function() {
     // Empty range.
     var axis = new ChartAxis(0, 1);
     axis.autoSetFromRange(buildRange());
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 0);
     assert.equal(axis.bounds.max, 1);

     // No configuration.
     var axis = new ChartAxis(2, 3);
     axis.autoSetFromRange(buildRange(1, 4));
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 2);
     assert.equal(axis.bounds.max, 3);

     // Allow expanding min.
     var axis = new ChartAxis(-2, -1);
     axis.autoSetFromRange(buildRange(-3, 0), {expandMin: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, -3);
     assert.equal(axis.bounds.max, -1);

     // Allow shrinking min.
     var axis = new ChartAxis(-2, -1);
     axis.autoSetFromRange(buildRange(-1.5, 0.5), {shrinkMin: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, -1.5);
     assert.equal(axis.bounds.max, -1);

     var axis = new ChartAxis(7, 8);
     axis.autoSetFromRange(buildRange(9, 10), {shrinkMin: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 8);
     assert.equal(axis.bounds.max, 8);

     // Allow expanding max.
     var axis = new ChartAxis(19, 20);
     axis.autoSetFromRange(buildRange(18, 21), {expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 19);
     assert.equal(axis.bounds.max, 21);

     // Allow shrinking max.
     var axis = new ChartAxis(30, 32);
     axis.autoSetFromRange(buildRange(29, 31), {shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 30);
     assert.equal(axis.bounds.max, 31);

     var axis = new ChartAxis(41, 42);
     axis.autoSetFromRange(buildRange(39, 40), {shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 41);
     assert.equal(axis.bounds.max, 41);

     // Allow shrinking both bounds.
     var axis = new ChartAxis(50, 53);
     axis.autoSetFromRange(buildRange(51, 52),
         {shrinkMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 51);
     assert.equal(axis.bounds.max, 52);

     var axis = new ChartAxis(50, 53);
     axis.autoSetFromRange(buildRange(49, 52),
         {shrinkMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 50);
     assert.equal(axis.bounds.max, 52);

     var axis = new ChartAxis(50, 53);
     axis.autoSetFromRange(buildRange(51, 54),
         {shrinkMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 51);
     assert.equal(axis.bounds.max, 53);

     var axis = new ChartAxis(50, 53);
     axis.autoSetFromRange(buildRange(49, 54),
         {shrinkMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 50);
     assert.equal(axis.bounds.max, 53);

     // Allow expanding both bounds.
     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(0, 100),
         {expandMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 0);
     assert.equal(axis.bounds.max, 100);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(60.5, 100),
         {expandMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 60);
     assert.equal(axis.bounds.max, 100);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(0, 60.5),
         {expandMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 0);
     assert.equal(axis.bounds.max, 61);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(60.2, 60.8),
         {expandMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 60);
     assert.equal(axis.bounds.max, 61);

     // Allow shrinking min and expanding max.
     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(62, 63),
         {shrinkMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 62);
     assert.equal(axis.bounds.max, 63);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(59, 63),
         {shrinkMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 60);
     assert.equal(axis.bounds.max, 63);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(60.2, 60.8),
         {shrinkMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 60.2);
     assert.equal(axis.bounds.max, 61);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(59, 60.5),
         {shrinkMin: true, expandMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 60);
     assert.equal(axis.bounds.max, 61);

     // Allow expanding min and shrinking max.
     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(62, 63),
         {expandMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 60);
     assert.equal(axis.bounds.max, 61);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(59, 63),
         {expandMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 59);
     assert.equal(axis.bounds.max, 61);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(60.2, 60.8),
         {expandMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 60);
     assert.equal(axis.bounds.max, 60.8);

     var axis = new ChartAxis(60, 61);
     axis.autoSetFromRange(buildRange(59, 60.5),
         {expandMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 59);
     assert.equal(axis.bounds.max, 60.5);

     // Allow everything.
     var axis = new ChartAxis(200, 250);
     axis.autoSetFromRange(buildRange(150, 175),
         {expandMin: true, expandMax: true, shrinkMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 150);
     assert.equal(axis.bounds.max, 175);

     var axis = new ChartAxis(0, 0.1);
     axis.autoSetFromRange(buildRange(0.2, 0.3),
         {expandMin: true, expandMax: true, shrinkMin: true, shrinkMax: true});
     assert.isFalse(axis.bounds.isEmpty);
     assert.equal(axis.bounds.min, 0.2);
     assert.equal(axis.bounds.max, 0.3);
   });

   test('checkAutoSetFromSeries_noSeries', function() {
     var axis = new ChartAxis(-100, 100);
     var series = [];

     axis.autoSetFromSeries(series);
     assert.equal(axis.bounds.min, -100);
     assert.equal(axis.bounds.max, 100);
   });

   test('checkAutoSetFromSeries_oneSeries', function() {
     var axis = new ChartAxis(-100, 100);
     var series = [buildSeries(-80, 100, -40, 200)];

     axis.autoSetFromSeries(series, {shrinkMin: true, expandMax: true});
     assert.equal(axis.bounds.min, -80);
     assert.equal(axis.bounds.max, 200);
   });

   test('checkAutoSetFromSeries_multipleSeries', function() {
     var axis = new ChartAxis(-100, 100);
     var series = [
       buildSeries(0, 20, 10, 30),
       buildSeries(),
       buildSeries(-500)
     ];

     axis.autoSetFromSeries(series, {expandMin: true, shrinkMax: true});
     assert.equal(axis.bounds.min, -500);
     assert.equal(axis.bounds.max, 30);
   });
 });
 </script>
	<!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/range.html">
	<link rel="import" href="/core/test_utils.html">
	<link rel="import" href="/ui/tracks/chart_axis.html">
	<link rel="import" href="/ui/tracks/chart_point.html">
	<link rel="import" href="/ui/tracks/chart_series.html">

	<script>
	'use strict';

	tr.b.unittest.testSuite(function() {
	var ChartAxis = tr.ui.tracks.ChartAxis;
	var ChartPoint = tr.ui.tracks.ChartPoint;
	var ChartSeries = tr.ui.tracks.ChartSeries;
	var Range = tr.b.Range;

	function buildRange() {
	var range = new Range();
	for (var i = 0; i < arguments.length; i++)
	range.addValue(arguments[i]);
	return range;
	}

	function buildSeries() {
	var points = [];
	for (var i = 0; i < arguments.length; i++) {
	points.push(new ChartPoint(undefined, i, arguments[i]));
	}
	return new ChartSeries(points, new ChartAxis());
	}

	test('instantiate_emptyBounds', function() {
	var axis = new ChartAxis();
	assert.isTrue(axis.bounds.isEmpty);
	});

	test('instantiate_nonEmptyBounds', function() {
	var axis = new ChartAxis(-2, 12);
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, -2);
	assert.equal(axis.bounds.max, 12);
	});

	test('instantiate_equalBounds', function() {
	var axis = new ChartAxis(2.72);
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 2.72);
	assert.equal(axis.bounds.max, 2.72);
	});

	test('checkValueToUnitRange_emptyBounds', function() {
	var axis = new ChartAxis();
	assert.throws(function() { axis.valueToUnitRange(42); });
	});

	test('checkValueToUnitRange_nonEmptyBounds', function() {
	var axis = new ChartAxis(10, 20);

	assert.equal(axis.valueToUnitRange(0), -1);
	assert.equal(axis.valueToUnitRange(10), 0);
	assert.equal(axis.valueToUnitRange(15), 0.5);
	assert.equal(axis.valueToUnitRange(20), 1);
	assert.equal(axis.valueToUnitRange(30), 2);
	});

	test('checkValueToUnitRange_equalBounds', function() {
	var axis = new ChartAxis(3.14);

	assert.equal(axis.valueToUnitRange(0), 0);
	assert.equal(axis.valueToUnitRange(3.14), 0);
	assert.equal(axis.valueToUnitRange(6.28), 0);
	});

	test('checkAutoSetFromRange_emptyBounds', function() {
	// Empty range.
	var axis = new ChartAxis();
	axis.autoSetFromRange(buildRange());
	assert.isTrue(axis.bounds.isEmpty);

	// Non-empty range.
	var axis = new ChartAxis();
	axis.autoSetFromRange(buildRange(-1, 3));
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, -1);
	assert.equal(axis.bounds.max, 3);
	});

	test('checkAutoSetFromRange_nonEmptyBounds', function() {
	// Empty range.
	var axis = new ChartAxis(0, 1);
	axis.autoSetFromRange(buildRange());
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 0);
	assert.equal(axis.bounds.max, 1);

	// No configuration.
	var axis = new ChartAxis(2, 3);
	axis.autoSetFromRange(buildRange(1, 4));
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 2);
	assert.equal(axis.bounds.max, 3);

	// Allow expanding min.
	var axis = new ChartAxis(-2, -1);
	axis.autoSetFromRange(buildRange(-3, 0), {expandMin: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, -3);
	assert.equal(axis.bounds.max, -1);

	// Allow shrinking min.
	var axis = new ChartAxis(-2, -1);
	axis.autoSetFromRange(buildRange(-1.5, 0.5), {shrinkMin: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, -1.5);
	assert.equal(axis.bounds.max, -1);

	var axis = new ChartAxis(7, 8);
	axis.autoSetFromRange(buildRange(9, 10), {shrinkMin: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 8);
	assert.equal(axis.bounds.max, 8);

	// Allow expanding max.
	var axis = new ChartAxis(19, 20);
	axis.autoSetFromRange(buildRange(18, 21), {expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 19);
	assert.equal(axis.bounds.max, 21);

	// Allow shrinking max.
	var axis = new ChartAxis(30, 32);
	axis.autoSetFromRange(buildRange(29, 31), {shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 30);
	assert.equal(axis.bounds.max, 31);

	var axis = new ChartAxis(41, 42);
	axis.autoSetFromRange(buildRange(39, 40), {shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 41);
	assert.equal(axis.bounds.max, 41);

	// Allow shrinking both bounds.
	var axis = new ChartAxis(50, 53);
	axis.autoSetFromRange(buildRange(51, 52),
	{shrinkMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 51);
	assert.equal(axis.bounds.max, 52);

	var axis = new ChartAxis(50, 53);
	axis.autoSetFromRange(buildRange(49, 52),
	{shrinkMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 50);
	assert.equal(axis.bounds.max, 52);

	var axis = new ChartAxis(50, 53);
	axis.autoSetFromRange(buildRange(51, 54),
	{shrinkMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 51);
	assert.equal(axis.bounds.max, 53);

	var axis = new ChartAxis(50, 53);
	axis.autoSetFromRange(buildRange(49, 54),
	{shrinkMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 50);
	assert.equal(axis.bounds.max, 53);

	// Allow expanding both bounds.
	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(0, 100),
	{expandMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 0);
	assert.equal(axis.bounds.max, 100);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(60.5, 100),
	{expandMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 60);
	assert.equal(axis.bounds.max, 100);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(0, 60.5),
	{expandMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 0);
	assert.equal(axis.bounds.max, 61);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(60.2, 60.8),
	{expandMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 60);
	assert.equal(axis.bounds.max, 61);

	// Allow shrinking min and expanding max.
	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(62, 63),
	{shrinkMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 62);
	assert.equal(axis.bounds.max, 63);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(59, 63),
	{shrinkMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 60);
	assert.equal(axis.bounds.max, 63);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(60.2, 60.8),
	{shrinkMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 60.2);
	assert.equal(axis.bounds.max, 61);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(59, 60.5),
	{shrinkMin: true, expandMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 60);
	assert.equal(axis.bounds.max, 61);

	// Allow expanding min and shrinking max.
	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(62, 63),
	{expandMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 60);
	assert.equal(axis.bounds.max, 61);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(59, 63),
	{expandMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 59);
	assert.equal(axis.bounds.max, 61);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(60.2, 60.8),
	{expandMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 60);
	assert.equal(axis.bounds.max, 60.8);

	var axis = new ChartAxis(60, 61);
	axis.autoSetFromRange(buildRange(59, 60.5),
	{expandMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 59);
	assert.equal(axis.bounds.max, 60.5);

	// Allow everything.
	var axis = new ChartAxis(200, 250);
	axis.autoSetFromRange(buildRange(150, 175),
	{expandMin: true, expandMax: true, shrinkMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 150);
	assert.equal(axis.bounds.max, 175);

	var axis = new ChartAxis(0, 0.1);
	axis.autoSetFromRange(buildRange(0.2, 0.3),
	{expandMin: true, expandMax: true, shrinkMin: true, shrinkMax: true});
	assert.isFalse(axis.bounds.isEmpty);
	assert.equal(axis.bounds.min, 0.2);
	assert.equal(axis.bounds.max, 0.3);
	});

	test('checkAutoSetFromSeries_noSeries', function() {
	var axis = new ChartAxis(-100, 100);
	var series = [];

	axis.autoSetFromSeries(series);
	assert.equal(axis.bounds.min, -100);
	assert.equal(axis.bounds.max, 100);
	});

	test('checkAutoSetFromSeries_oneSeries', function() {
	var axis = new ChartAxis(-100, 100);
	var series = [buildSeries(-80, 100, -40, 200)];

	axis.autoSetFromSeries(series, {shrinkMin: true, expandMax: true});
	assert.equal(axis.bounds.min, -80);
	assert.equal(axis.bounds.max, 200);
	});

	test('checkAutoSetFromSeries_multipleSeries', function() {
	var axis = new ChartAxis(-100, 100);
	var series = [
	buildSeries(0, 20, 10, 30),
	buildSeries(),
	buildSeries(-500)
	];

	axis.autoSetFromSeries(series, {expandMin: true, shrinkMax: true});
	assert.equal(axis.bounds.min, -500);
	assert.equal(axis.bounds.max, 30);
	});
	});
	</script>