auto_tests/tests/sanity.js

   1 // Copyright (c) 2011 Google, Inc.
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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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  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
  28 describe("dygraphs-sanity", function() {
  29
  30 var DEAD_SIMPLE_DATA = 'X,Y\n10,2100';
  31 var ZERO_TO_FIFTY = 'X,Y\n10,0\n20,50';
  32
  33 beforeEach(function() {
  34   document.body.innerHTML = "<div id='graph'></div>";
  35 });
  36
  37 /**
  38  * The sanity test of sanity tests.
  39  */
  40 it('testTrue', function() {
  41   assert.isTrue(true);
  42 });
  43
  44 /**
  45  * Sanity test that ensures the graph element exists.
  46  */
  47 it('testGraphExists', function() {
  48   var graph = document.getElementById("graph");
  49   assert.isNotNull(graph);
  50 });
  51
  52 // TODO(konigsberg): Move the following tests to a new package that
  53 // tests all kinds of toDomCoords, toDataCoords, toPercent, et cetera.
  54
  55 /**
  56  * A sanity test of sorts, by ensuring the dygraph is created, and
  57  * isn't just some piece of junk object.
  58  */
  59 it('testToString', function() {
  60   var graph = document.getElementById("graph");
  61   var g = new Dygraph(graph, DEAD_SIMPLE_DATA, {});
  62   assert.isNotNull(g);
  63   assert.equal("[Dygraph graph]", g.toString());
  64 });
  65
  66 /**
  67  * Test that when no valueRange is specified, the y axis range is
  68  * adjusted by 10% on top.
  69  */
  70 it('testYAxisRange_default', function() {
  71   var graph = document.getElementById("graph");
  72   assert.equal(0, graph.style.length);
  73   var g = new Dygraph(graph, ZERO_TO_FIFTY, {});
  74   assert.deepEqual([0, 55], g.yAxisRange(0));
  75 });
  76
  77 /**
  78  * Test that valueRange matches the y-axis range specifically.
  79  */
  80 it('testYAxisRange_custom', function() {
  81   var graph = document.getElementById("graph");
  82   var g = new Dygraph(graph, ZERO_TO_FIFTY, { valueRange: [0,50] });
  83   assert.deepEqual([0, 50], g.yAxisRange(0));
  84   g.updateOptions({valueRange: null, axes: {y: {valueRange: [10, 40]}}});
  85   assert.deepEqual([10, 40], g.yAxisRange(0));
  86 });
  87
  88 /**
  89  * Test that valueRange matches the y-axis range specifically.
  90  *
  91  * This is based on the assumption that 20 pixels are dedicated to the
  92  * axis label and tick marks.
  93  * TODO(konigsberg): change yAxisLabelWidth to 0 (or 20) and try again.
  94  */
  95 it('testToDomYCoord', function() {
  96   var graph = document.getElementById("graph");
  97   var g = new Dygraph(graph, ZERO_TO_FIFTY, { height: 70, valueRange: [0,50] });
  98
  99   assert.equal(50, g.toDomYCoord(0));
 100   assert.equal(0, g.toDomYCoord(50));
 101
 102   for (var x = 0; x <= 50; x++) {
 103     assert.closeTo(50 - x, g.toDomYCoord(x), 0.00001);
 104   }
 105   g.updateOptions({valueRange: null, axes: {y: {valueRange: [0, 50]}}});
 106
 107   assert.equal(50, g.toDomYCoord(0));
 108   assert.equal(0, g.toDomYCoord(50));
 109
 110   for (var x = 0; x <= 50; x++) {
 111     assert.closeTo(50 - x, g.toDomYCoord(x), 0.00001);
 112   }
 113 });
 114
 115 /**
 116  * Test that the two-argument form of the constructor (no options) works.
 117  */
 118 it('testTwoArgumentConstructor', function() {
 119   var graph = document.getElementById("graph");
 120   new Dygraph(graph, ZERO_TO_FIFTY);
 121 });
 122
 123 // Here is the first of a series of tests that just ensure the graph is drawn
 124 // without exception.
 125 //TODO(konigsberg): Move to its own test case.
 126 it('testFillStack1', function() {
 127   var graph = document.getElementById("graph");
 128   new Dygraph(graph, ZERO_TO_FIFTY, { stackedGraph: true });
 129 });
 130
 131 it('testFillStack2', function() {
 132   var graph = document.getElementById("graph");
 133   new Dygraph(graph, ZERO_TO_FIFTY, { stackedGraph: true, fillGraph: true });
 134 });
 135
 136 it('testFillStack3', function() {
 137   var graph = document.getElementById("graph");
 138   new Dygraph(graph, ZERO_TO_FIFTY, { fillGraph: true });
 139 });
 140
 141 });