auto_tests/tests/missing_points.js

   1 // Copyright (c) 2012 Google, Inc.
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   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:
   9 //
  10 // The above copyright notice and this permission notice shall be included in
  11 // all copies or substantial portions of the Software.
  12 //
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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  * @fileoverview Test cases for drawing lines with missing points.
  23  *
  24  * @author konigsberg@google.com (Robert Konigsberg)
  25  */
  26 var ZERO_TO_FIFTY = [[ 10, 0 ] , [ 20, 50 ]];
  27
  28 var MissingPointsTestCase = TestCase("missing-points");
  29
  30 MissingPointsTestCase._origFunc = Dygraph.getContext;
  31 MissingPointsTestCase.prototype.setUp = function() {
  32   document.body.innerHTML = "<div id='graph'></div>";
  33   Dygraph.getContext = function(canvas) {
  34     return new Proxy(MissingPointsTestCase._origFunc(canvas));
  35   }
  36 };
  37
  38 MissingPointsTestCase.prototype.tearDown = function() {
  39   Dygraph.getContext = MissingPointsTestCase._origFunc;
  40 };
  41
  42 MissingPointsTestCase.prototype.testSeparatedPointsDontDraw = function() {
  43   var graph = document.getElementById("graph");
  44   var g = new Dygraph(
  45       graph,
  46       [[1, 10, 11],
  47        [2, 11, null],
  48        [3, 12, 13]],
  49       { colors: ['red', 'blue']});
  50   var htx = g.hidden_ctx_;
  51   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#ff0000'));
  52   assertEquals(0, CanvasAssertions.numLinesDrawn(htx, '#0000ff'));
  53 };
  54
  55 MissingPointsTestCase.prototype.testSeparatedPointsDontDraw_expanded = function() {
  56   var graph = document.getElementById("graph");
  57   var g = new Dygraph(
  58       graph,
  59       [[0, 10],
  60        [1, 11],
  61        [2, null],
  62        [3, 13],
  63        [4, 14]],
  64       { colors: ['blue']});
  65   var htx = g.hidden_ctx_;
  66
  67   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#0000ff'));
  68   CanvasAssertions.assertLineDrawn(htx, [56, 275], [161, 212],
  69       { strokeStyle: '#0000ff', });
  70   CanvasAssertions.assertLineDrawn(htx, [370, 87], [475, 25],
  71       { strokeStyle: '#0000ff', });
  72 };
  73
  74 MissingPointsTestCase.prototype.testSeparatedPointsDontDraw_expanded_connected = function() {
  75   var graph = document.getElementById("graph");
  76   var g = new Dygraph(
  77       graph,
  78       [[0, 10],
  79        [1, 11],
  80        [2, null],
  81        [3, 13],
  82        [4, 14]],
  83       { colors: ['blue'], connectSeparatedPoints: true});
  84   var htx = g.hidden_ctx_;
  85   var num_lines = 0;
  86
  87   assertEquals(3, CanvasAssertions.numLinesDrawn(htx, '#0000ff'));
  88   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
  89       [[56, 275], [161, 212], [370, 87], [475, 25]],
  90       { strokeStyle: '#0000ff' });
  91 };
  92
  93 /**
  94  * At the time of writing this test, the blue series is only points, and not lines.
  95  */
  96 MissingPointsTestCase.prototype.testConnectSeparatedPoints = function() {
  97   var g = new Dygraph(
  98     document.getElementById("graph"),
  99     [
 100       [1, null, 3],
 101       [2, 2, null],
 102       [3, null, 7],
 103       [4, 5, null],
 104       [5, null, 5],
 105       [6, 3, null]
 106     ],
 107     {
 108       connectSeparatedPoints: true,
 109       drawPoints: true,
 110       colors: ['red', 'blue']
 111     }
 112   );
 113
 114   var htx = g.hidden_ctx_;
 115
 116   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#0000ff'));
 117   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
 118       [[56, 225], [223, 25], [391, 125]],
 119       { strokeStyle: '#0000ff' });
 120
 121   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#ff0000'));
 122   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
 123       [[140, 275], [307, 125], [475, 225]],
 124       { strokeStyle: '#ff0000' });
 125 };
 126
 127 /**
 128  * At the time of writing this test, the blue series is only points, and not lines.
 129  */
 130 MissingPointsTestCase.prototype.testConnectSeparatedPointsWithNan = function() {
 131   var g = new Dygraph(
 132     document.getElementById("graph"),
 133     "x,A,B  \n" +
 134     "1,,3   \n" +
 135     "2,2,   \n" +
 136     "3,,5   \n" +
 137     "4,4,   \n" +
 138     "5,,7   \n" +
 139     "6,NaN, \n" +
 140     "8,8,   \n" +
 141     "10,10, \n",
 142     {
 143       connectSeparatedPoints: true,
 144       drawPoints: true,
 145       colors: ['red', 'blue']
 146     }
 147   );
 148
 149   var htx = g.hidden_ctx_;
 150
 151   // Red has two disconnected line segments
 152   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#ff0000'));
 153   CanvasAssertions.assertLineDrawn(htx, [102, 275], [195, 212], { strokeStyle: '#ff0000' });
 154   CanvasAssertions.assertLineDrawn(htx, [381, 87], [475, 25], { strokeStyle: '#ff0000' });
 155
 156   // Blue's lines are consecutive, however.
 157   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#0000ff'));
 158   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
 159       [[56, 244], [149, 181], [242, 118]],
 160       { strokeStyle: '#0000ff' });
 161 };
 162
 163 /* These lines contain awesome powa!
 164   var lines = CanvasAssertions.getLinesDrawn(htx, {strokeStyle: "#0000ff"});
 165   for (var idx = 0; idx < lines.length; idx++) {
 166     var line = lines[idx];
 167     console.log(line[0].args, line[1].args, line[0].properties.strokeStyle);
 168   }
 169 */
 170
 171 MissingPointsTestCase.prototype.testErrorBarsWithMissingPoints = function() {
 172   var data = [
 173               [1, [2,1]],
 174               [2, [3,1]],
 175               [3, null],
 176               [4, [5,1]],
 177               [5, [4,1]],
 178               [6, [null,null]],
 179              ];
 180   var g = new Dygraph(
 181     document.getElementById("graph"),
 182     data,
 183     {
 184       errorBars: true,
 185       colors: ['red']
 186     }
 187   );
 188
 189   var htx = g.hidden_ctx_;
 190
 191   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#ff0000'));
 192
 193   var p0 = g.toDomCoords(data[0][0], data[0][1][0]);
 194   var p1 = g.toDomCoords(data[1][0], data[1][1][0]);
 195   var p2 = g.toDomCoords(data[3][0], data[3][1][0]);
 196   var p3 = g.toDomCoords(data[4][0], data[4][1][0]);
 197   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
 198       [p0, p1], { strokeStyle: '#ff0000' });
 199   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
 200       [p2, p3], { strokeStyle: '#ff0000' });
 201 };
 202
 203 MissingPointsTestCase.prototype.testErrorBarsWithMissingPointsConnected = function() {
 204   var data = [
 205               [1, [null,1]],
 206               [2, [2,1]],
 207               [3, null],
 208               [4, [5,1]],
 209               [5, [null,null]],
 210               [6, [3,1]]
 211              ];
 212   var g = new Dygraph(
 213     document.getElementById("graph"),
 214     data,
 215     {
 216       connectSeparatedPoints: true,
 217       drawPoints: true,
 218       errorBars: true,
 219       colors: ['red']
 220     }
 221   );
 222
 223   var htx = g.hidden_ctx_;
 224
 225   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#ff0000'));
 226
 227   var p1 = g.toDomCoords(data[1][0], data[1][1][0]);
 228   var p2 = g.toDomCoords(data[3][0], data[3][1][0]);
 229   var p3 = g.toDomCoords(data[5][0], data[5][1][0]);
 230   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
 231       [p1, p2, p3],
 232       { strokeStyle: '#ff0000' });
 233 };
 234 MissingPointsTestCase.prototype.testCustomBarsWithMissingPoints = function() {
 235   var data = [
 236               [1, [1,2,3]],
 237               [2, [2,3,4]],
 238               [3, null],
 239               [4, [4,5,6]],
 240               [5, [3,4,5]],
 241               [6, [null,null,null]],
 242               [7, [2,3,4]],
 243               [8, [1,2,3]],
 244               [9, NaN],
 245               [10, [2,3,4]],
 246               [11, [3,4,5]],
 247               [12, [NaN,NaN,NaN]]
 248              ];
 249   var g = new Dygraph(
 250     document.getElementById("graph"),
 251     data,
 252     {
 253       customBars: true,
 254       colors: ['red']
 255     }
 256   );
 257
 258   var htx = g.hidden_ctx_;
 259
 260   assertEquals(4, CanvasAssertions.numLinesDrawn(htx, '#ff0000'));
 261
 262   var p0 = g.toDomCoords(data[0][0], data[0][1][1]);
 263   var p1 = g.toDomCoords(data[1][0], data[1][1][1]);
 264   CanvasAssertions.assertLineDrawn(htx, p0, p1, { strokeStyle: '#ff0000' });
 265
 266   p0 = g.toDomCoords(data[3][0], data[3][1][1]);
 267   p1 = g.toDomCoords(data[4][0], data[4][1][1]);
 268   CanvasAssertions.assertLineDrawn(htx, p0, p1, { strokeStyle: '#ff0000' });
 269
 270   p0 = g.toDomCoords(data[6][0], data[6][1][1]);
 271   p1 = g.toDomCoords(data[7][0], data[7][1][1]);
 272   CanvasAssertions.assertLineDrawn(htx, p0, p1, { strokeStyle: '#ff0000' });;
 273
 274   p0 = g.toDomCoords(data[9][0], data[9][1][1]);
 275   p1 = g.toDomCoords(data[10][0], data[10][1][1]);
 276   CanvasAssertions.assertLineDrawn(htx, p0, p1, { strokeStyle: '#ff0000' });
 277 };
 278
 279 MissingPointsTestCase.prototype.testCustomBarsWithMissingPointsConnected = function() {
 280   var data = [
 281               [1, [1,null,1]],
 282               [2, [1,2,3]],
 283               [3, null],
 284               [4, [4,5,6]],
 285               [5, [null,null,null]],
 286               [6, [2,3,4]]
 287              ];
 288   var g = new Dygraph(
 289     document.getElementById("graph"),
 290     data,
 291     {
 292       connectSeparatedPoints: true,
 293       drawPoints: true,
 294       customBars: true,
 295       colors: ['red']
 296     }
 297   );
 298
 299   var htx = g.hidden_ctx_;
 300
 301   assertEquals(2, CanvasAssertions.numLinesDrawn(htx, '#ff0000'));
 302
 303   var p1 = g.toDomCoords(data[1][0], data[1][1][1]);
 304   var p2 = g.toDomCoords(data[3][0], data[3][1][1]);
 305   var p3 = g.toDomCoords(data[5][0], data[5][1][1]);
 306   CanvasAssertions.assertConsecutiveLinesDrawn(htx,
 307       [p1, p2, p3],
 308       { strokeStyle: '#ff0000' });
 309 };
 310
 311 MissingPointsTestCase.prototype.testLeftBoundaryWithMisingPoints = function() {
 312   var data = [
 313               [1, null, 3],
 314               [2, 1, null],
 315               [3, 0, 5],
 316               [4, 2, 1],
 317               [5, 4, null],
 318               [6, 3, 2]
 319              ];
 320   var g = new Dygraph(
 321     document.getElementById("graph"),
 322     data,
 323     {
 324       connectSeparatedPoints: true,
 325       drawPoints: true,
 326       colors: ['red','blue']
 327     }
 328   );
 329   g.updateOptions({ dateWindow : [ 2.5, 4.5 ] });
 330   assertEquals(1, g.getLeftBoundary_(0));
 331   assertEquals(0, g.getLeftBoundary_(1));
 332
 333   var domX = g.toDomXCoord(1.9);
 334   var closestRow = g.findClosestRow(domX);
 335   assertEquals(1, closestRow);
 336
 337   g.setSelection(closestRow);
 338   assertEquals(1, g.selPoints_.length);
 339   assertEquals(1, g.selPoints_[0].yval);
 340
 341   g.setSelection(3);
 342   assertEquals(2, g.selPoints_.length);
 343   assertEquals(g.selPoints_[0].xval, g.selPoints_[1].xval);
 344   assertEquals(2, g.selPoints_[0].yval);
 345   assertEquals(1, g.selPoints_[1].yval);
 346 };
 347
 348 // Regression test for issue #411
 349 MissingPointsTestCase.prototype.testEmptySeries = function() {
 350   var graphDiv = document.getElementById("graph");
 351   var g = new Dygraph(
 352        graphDiv,
 353        "Time,Empty Series,Series 1,Series 2\n" +
 354        "1381134460,,0,100\n" +
 355        "1381134461,,1,99\n" +
 356        "1381134462,,2,98\n" +
 357        "1381134463,,3,97\n" +
 358        "1381134464,,4,96\n" +
 359        "1381134465,,5,95\n" +
 360        "1381134466,,6,94\n" +
 361        "1381134467,,7,93\n" +
 362        "1381134468,,8,92\n" +
 363        "1381134469,,9,91\n", {
 364            visibility: [true, false, true],
 365            dateWindow: [1381134465, 1381134467]
 366        });
 367
 368   g.setSelection(6);
 369   assertEquals("1381134466: Series 2: 94", Util.getLegend(graphDiv));
 370 };
 371
 372 // Regression test for issue #485
 373 MissingPointsTestCase.prototype.testMissingFill = function() {
 374   var graphDiv = document.getElementById("graph");
 375   var N = null;
 376   var g = new Dygraph(
 377       graphDiv,
 378       [
 379         [1, [8, 10, 12]],
 380         [2, [3, 5,7]   ],
 381         [3,     N,     ],
 382         [4, [9, N, 2]  ],  // Note: nulls in arrays are not technically valid.
 383         [5, [N, 2, N]  ],  // see dygraphs.com/data.html.
 384         [6, [2, 3, 6]  ]
 385       ],
 386       {
 387         customBars: true,
 388         connectSeparatedPoints: false,
 389         labels: [ "X", "Series1"]
 390       }
 391   );
 392
 393   // Make sure there are no 'NaN' line segments.
 394   var htx = g.hidden_ctx_;
 395   for (var i = 0; i < htx.calls__.length; i++) {
 396     var call = htx.calls__[i];
 397     if ((call.name == 'moveTo' || call.name == 'lineTo') && call.args) {
 398       for (var j = 0; j < call.args.length; j++) {
 399         assertFalse(isNaN(call.args[j]));
 400       }
 401     }
 402   }
 403 };