auto_tests/tests/range_tests.js

   1 // Copyright (c) 2011 Google, Inc.
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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 valueRange and dateWindow changes.
  24  *
  25  * @author konigsberg@google.com (Robert Konigsberg)
  26  */
  27 var ZERO_TO_FIFTY = [[ 10, 0 ] , [ 20, 50 ]];
  28 var ZERO_TO_FIFTY_STEPS = function() {
  29   var a = [];
  30   var x = 10;
  31   var y = 0;
  32   var step = 0;
  33   for (step = 0; step <= 50; step++) {
  34     a.push([x + (step * .2), y + step]);
  35   }
  36   return a;
  37 } ();
  38 var FIVE_TO_ONE_THOUSAND = [
  39     [ 1, 10 ], [ 2, 20 ], [ 3, 30 ], [ 4, 40 ] , [ 5, 50 ],
  40     [ 6, 60 ], [ 7, 70 ], [ 8, 80 ], [ 9, 90 ] , [ 10, 1000 ]];
  41
  42 var RangeTestCase = TestCase("range-tests");
  43
  44 RangeTestCase.prototype.setUp = function() {
  45   document.body.innerHTML = "<div id='graph'></div>";
  46 };
  47
  48 RangeTestCase.prototype.createGraph = function(opts) {
  49   var graph = document.getElementById("graph");
  50   var g = new Dygraph(graph, ZERO_TO_FIFTY_STEPS, opts);
  51
  52   assertEquals([10, 20], g.xAxisRange());
  53   assertEquals([0, 55], g.yAxisRange(0));
  54
  55   return g;
  56 };
  57
  58 /**
  59  * Test that changes to valueRange and dateWindow are reflected
  60  * appropriately.
  61  */
  62 RangeTestCase.prototype.testRangeSetOperations = function() {
  63   var g = this.createGraph({valueRange : [ 0, 55 ]});
  64
  65   g.updateOptions({ dateWindow : [ 12, 18 ] });
  66   assertEquals([12, 18], g.xAxisRange());
  67   assertEquals([0, 55], g.yAxisRange(0));
  68
  69   g.updateOptions({ valueRange : [ 10, 40 ] });
  70   assertEquals([12, 18], g.xAxisRange());
  71   assertEquals([10, 40], g.yAxisRange(0));
  72
  73   g.updateOptions({ valueRange: [10, NaN] });
  74   assertEquals([12, 18], g.xAxisRange());
  75   assertEquals([10, 44.2], g.yAxisRange(0));
  76
  77   g.updateOptions({ valueRange: [10, 40] });
  78   assertEquals([12, 18], g.xAxisRange());
  79   assertEquals([10, 40], g.yAxisRange(0));
  80
  81   g.updateOptions({  });
  82   assertEquals([12, 18], g.xAxisRange());
  83   assertEquals([10, 40], g.yAxisRange(0));
  84
  85   g.updateOptions({valueRange : null, axes: {y:{valueRange : [15, 20]}}});
  86   assertEquals([12, 18], g.xAxisRange());
  87   assertEquals([15, 20], g.yAxisRange(0));
  88
  89   g.updateOptions({ dateWindow : null, valueRange : null, axes: null });
  90   assertEquals([10, 20], g.xAxisRange());
  91   assertEquals([0, 55], g.yAxisRange(0));
  92 };
  93
  94 /**
  95  * Verify that when zoomed in by mouse operations, an empty call to
  96  * updateOptions doesn't change the displayed ranges.
  97  */
  98 RangeTestCase.prototype.zoom = function(g, xRange, yRange) {
  99   var originalXRange = g.xAxisRange();
 100   var originalYRange = g.yAxisRange(0);
 101
 102   DygraphOps.dispatchMouseDown(g, xRange[0], yRange[0]);
 103   DygraphOps.dispatchMouseMove(g, xRange[1], yRange[0]); // this is really necessary.
 104   DygraphOps.dispatchMouseUp(g, xRange[1], yRange[0]);
 105
 106   assertEqualsDelta(xRange, g.xAxisRange(), 0.2);
 107   // assertEqualsDelta(originalYRange, g.yAxisRange(0), 0.2); // Not true, it's something in the middle.
 108
 109   var midX = (xRange[1] - xRange[0]) / 2;
 110   DygraphOps.dispatchMouseDown(g, midX, yRange[0]);
 111   DygraphOps.dispatchMouseMove(g, midX, yRange[1]); // this is really necessary.
 112   DygraphOps.dispatchMouseUp(g, midX, yRange[1]);
 113
 114   assertEqualsDelta(xRange, g.xAxisRange(), 0.2);
 115   assertEqualsDelta(yRange, g.yAxisRange(0), 0.2);
 116 }
 117
 118
 119 /**
 120  * Verify that when zoomed in by mouse operations, an empty call to
 121  * updateOptions doesn't change the displayed ranges.
 122  */
 123 RangeTestCase.prototype.testEmptyUpdateOptions_doesntUnzoom = function() {
 124   var g = this.createGraph();
 125   this.zoom(g, [ 11, 18 ], [ 35, 40 ]);
 126
 127   assertEqualsDelta([11, 18], g.xAxisRange(), 0.1);
 128   assertEqualsDelta([35, 40], g.yAxisRange(0), 0.2);
 129
 130   g.updateOptions({});
 131
 132   assertEqualsDelta([11, 18], g.xAxisRange(), 0.1);
 133   assertEqualsDelta([35, 40], g.yAxisRange(0), 0.2);
 134 }
 135
 136 /**
 137  * Verify that when zoomed in by mouse operations, a call to
 138  * updateOptions({ dateWindow : null, valueRange : null }) fully
 139  * unzooms.
 140  */
 141 RangeTestCase.prototype.testRestoreOriginalRanges_viaUpdateOptions = function() {
 142   var g = this.createGraph();
 143   this.zoom(g, [ 11, 18 ], [ 35, 40 ]);
 144
 145   g.updateOptions({ dateWindow : null, valueRange : null });
 146
 147   assertEquals([0, 55], g.yAxisRange(0));
 148   assertEquals([10, 20], g.xAxisRange());
 149 }
 150
 151 /**
 152  * Verify that log scale axis range is properly specified.
 153  */
 154 RangeTestCase.prototype.testLogScaleExcludesZero = function() {
 155   var g = new Dygraph("graph", FIVE_TO_ONE_THOUSAND, { logscale : true });
 156   assertEquals([10, 1099], g.yAxisRange(0));
 157
 158   g.updateOptions({ logscale : false });
 159   assertEquals([0, 1099], g.yAxisRange(0));
 160 }
 161
 162 /**
 163  * Verify that includeZero range is properly specified.
 164  */
 165 RangeTestCase.prototype.testIncludeZeroIncludesZero = function() {
 166   var g = new Dygraph("graph", [[0, 500], [500, 1000]], { includeZero : true });
 167   assertEquals([0, 1100], g.yAxisRange(0));
 168
 169   g.updateOptions({ includeZero : false });
 170   assertEquals([450, 1050], g.yAxisRange(0));
 171 }
 172
 173
 174 /**
 175  * Verify that includeZero range is properly specified per axis.
 176  */
 177 RangeTestCase.prototype.testIncludeZeroPerAxis = function() {
 178   var g = new Dygraph("graph",
 179     'X,A,B\n'+
 180     '0,50,50\n'+
 181     '50,110,110\n',
 182     {
 183       drawPoints: true,
 184       pointSize:5,
 185       series:{
 186         A: {
 187           axis: 'y',
 188           pointSize: 10
 189         },
 190         B: {
 191           axis: 'y2'
 192         }
 193       },
 194       axes: {
 195         'y2': { includeZero: true }
 196       }
 197     });
 198
 199
 200   assertEquals([44, 116], g.yAxisRange(0));
 201   assertEquals([0, 121], g.yAxisRange(1));
 202
 203   g.updateOptions({
 204     axes: {
 205       'y2': { includeZero: false }
 206     }
 207   });
 208
 209   assertEquals([44, 116], g.yAxisRange(1));
 210 }
 211
 212
 213 /**
 214  * Verify that includeZero range is properly specified per axis with old axis options.
 215  */
 216 RangeTestCase.prototype.testIncludeZeroPerAxisOld = function() {
 217   var g = new Dygraph("graph",
 218     'X,A,B\n' +
 219     '0,50,50\n' +
 220     '50,110,110\n',
 221     {
 222       drawPoints: true,
 223       pointSize: 5,
 224
 225         A: {
 226           pointSize: 10
 227         },
 228         B: {
 229           axis: {}
 230         },
 231       axes: {
 232         'y': { includeZero: true },
 233         'y2': { includeZero: false }
 234       }
 235     });
 236
 237   assertEquals([0, 121], g.yAxisRange(0));
 238   assertEquals([44, 116], g.yAxisRange(1));
 239
 240   g.updateOptions({
 241     axes: {
 242       'y': { includeZero: false },
 243       'y2': { includeZero: true }
 244     }
 245   });
 246
 247   assertEquals([44, 116], g.yAxisRange(0));
 248   assertEquals([0, 121], g.yAxisRange(1));
 249 }
 250
 251 /**
 252  * Verify that very large Y ranges don't break things.
 253  */
 254 RangeTestCase.prototype.testHugeRange = function() {
 255   var g = new Dygraph("graph", [[0, -1e120], [1, 1e230]], { includeZero : true });
 256   assertEqualsDelta(1, -1e229 / g.yAxisRange(0)[0], 0.001);
 257   assertEqualsDelta(1, 1.1e230 / g.yAxisRange(0)[1], 0.001);
 258 }