auto_tests/tests/sanity.js

   1 // Copyright (c) 2011 Google, Inc.
   2 //
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   4 // of this software and associated documentation files (the "Software"), to deal
   5 // in the Software without restriction, including without limitation the rights
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   8 // furnished to do so, subject to the following conditions:
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  10 // The above copyright notice and this permission notice shall be included in
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  14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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  19 // THE SOFTWARE.
  20
  21
  22 /**
  23  * @fileoverview Test cases that ensure Dygraphs works at all.
  24  *
  25  * @author konigsberg@google.com (Robert Konigsberg)
  26  */
  27 var DEAD_SIMPLE_DATA = [[ 10, 2100 ]];
  28 var ZERO_TO_FIFTY = [[ 10, 0 ] , [ 20, 50 ]];
  29
  30 describe("dygraphs-sanity", function() {
  31
  32 beforeEach(function() {
  33   document.body.innerHTML = "<div id='graph'></div>";
  34 });
  35
  36 /**
  37  * The sanity test of sanity tests.
  38  */
  39 it('testTrue', function() {
  40   assert.isTrue(true);
  41 });
  42
  43 /**
  44  * Sanity test that ensures the graph element exists.
  45  */
  46 it('testGraphExists', function() {
  47   var graph = document.getElementById("graph");
  48   assert.isNotNull(graph);
  49 });
  50
  51 // TODO(konigsberg): Move the following tests to a new package that
  52 // tests all kinds of toDomCoords, toDataCoords, toPercent, et cetera.
  53
  54 /**
  55  * A sanity test of sorts, by ensuring the dygraph is created, and
  56  * isn't just some piece of junk object.
  57  */
  58 it('testToString', function() {
  59   var graph = document.getElementById("graph");
  60   var g = new Dygraph(graph, DEAD_SIMPLE_DATA, {});
  61   assert.isNotNull(g);
  62   assert.equal("[Dygraph graph]", g.toString());
  63 });
  64
  65 /**
  66  * Test that when no valueRange is specified, the y axis range is
  67  * adjusted by 10% on top.
  68  */
  69 it('testYAxisRange_default', function() {
  70   var graph = document.getElementById("graph");
  71   assert.equal(0, graph.style.length);
  72   var g = new Dygraph(graph, ZERO_TO_FIFTY, {});
  73   assert.deepEqual([0, 55], g.yAxisRange(0));
  74 });
  75
  76 /**
  77  * Test that valueRange matches the y-axis range specifically.
  78  */
  79 it('testYAxisRange_custom', function() {
  80   var graph = document.getElementById("graph");
  81   var g = new Dygraph(graph, ZERO_TO_FIFTY, { valueRange: [0,50] });
  82   assert.deepEqual([0, 50], g.yAxisRange(0));
  83   g.updateOptions({valueRange: null, axes: {y: {valueRange: [10, 40]}}});
  84   assert.deepEqual([10, 40], g.yAxisRange(0));
  85 });
  86
  87 /**
  88  * Test that valueRange matches the y-axis range specifically.
  89  *
  90  * This is based on the assumption that 20 pixels are dedicated to the
  91  * axis label and tick marks.
  92  * TODO(konigsberg): change yAxisLabelWidth to 0 (or 20) and try again.
  93  */
  94 it('testToDomYCoord', function() {
  95   var graph = document.getElementById("graph");
  96   var g = new Dygraph(graph, ZERO_TO_FIFTY, { height: 70, valueRange: [0,50] });
  97
  98   assert.equal(50, g.toDomYCoord(0));
  99   assert.equal(0, g.toDomYCoord(50));
 100
 101   for (var x = 0; x <= 50; x++) {
 102     assert.closeTo(50 - x, g.toDomYCoord(x), 0.00001);
 103   }
 104   g.updateOptions({valueRange: null, axes: {y: {valueRange: [0, 50]}}});
 105
 106   assert.equal(50, g.toDomYCoord(0));
 107   assert.equal(0, g.toDomYCoord(50));
 108
 109   for (var x = 0; x <= 50; x++) {
 110     assert.closeTo(50 - x, g.toDomYCoord(x), 0.00001);
 111   }
 112 });
 113
 114 /**
 115  * Test that the two-argument form of the constructor (no options) works.
 116  */
 117 it('testTwoArgumentConstructor', function() {
 118   var graph = document.getElementById("graph");
 119   new Dygraph(graph, ZERO_TO_FIFTY);
 120 });
 121
 122 // Here is the first of a series of tests that just ensure the graph is drawn
 123 // without exception.
 124 //TODO(konigsberg): Move to its own test case.
 125 it('testFillStack1', function() {
 126   var graph = document.getElementById("graph");
 127   new Dygraph(graph, ZERO_TO_FIFTY, { stackedGraph: true });
 128 });
 129
 130 it('testFillStack2', function() {
 131   var graph = document.getElementById("graph");
 132   new Dygraph(graph, ZERO_TO_FIFTY, { stackedGraph: true, fillGraph: true });
 133 });
 134
 135 it('testFillStack3', function() {
 136   var graph = document.getElementById("graph");
 137   new Dygraph(graph, ZERO_TO_FIFTY, { fillGraph: true });
 138 });
 139
 140 });