auto_tests/tests/dygraph-options-tests.js

   1 /**
   2  * @fileoverview Test cases for DygraphOptions.
   3  */
   4 var DygraphOptionsTestCase = TestCase("dygraph-options-tests");
   5
   6 DygraphOptionsTestCase.prototype.setUp = function() {
   7   document.body.innerHTML = "<div id='graph'></div>";
   8 };
   9
  10 DygraphOptionsTestCase.prototype.tearDown = function() {
  11 };
  12
  13 /*
  14  * Pathalogical test to ensure getSeriesNames works
  15  */
  16 DygraphOptionsTestCase.prototype.testGetSeriesNames = function() {
  17   var opts = {
  18     width: 480,
  19     height: 320
  20   };
  21   var data = "X,Y,Y2,Y3\n" +
  22       "0,-1,0,0";
  23
  24   // Kind of annoying that you need a DOM to test the object.
  25   var graph = document.getElementById("graph");
  26   var g = new Dygraph(graph, data, opts);
  27
  28   // We don't need to get at g's attributes_ object just
  29   // to test DygraphOptions.
  30   var o = new DygraphOptions(g);
  31   assertEquals(["Y", "Y2", "Y3"], o.seriesNames());
  32 };
  33
  34 /*
  35  * Ensures that even if logscale is set globally, it doesn't impact the
  36  * x axis.
  37  */
  38 DygraphOptionsTestCase.prototype.testGetLogscaleForX = function() {
  39   var opts = {
  40     width: 480,
  41     height: 320
  42   };
  43   var data = "X,Y,Y2,Y3\n" +
  44       "1,-1,2,3";
  45
  46   // Kind of annoying that you need a DOM to test the object.
  47   var graph = document.getElementById("graph");
  48   var g = new Dygraph(graph, data, opts);
  49
  50   assertFalse(!!g.getOptionForAxis('logscale', 'x'));
  51   assertFalse(!!g.getOptionForAxis('logscale', 'y'));
  52
  53   g.updateOptions({ logscale : true });
  54   assertFalse(!!g.getOptionForAxis('logscale', 'x'));
  55   assertTrue(!!g.getOptionForAxis('logscale', 'y'));
  56 };
  57
  58 // Helper to gather all warnings emitted by Dygraph constructor.
  59 // Removes everything after the first open parenthesis in each warning.
  60 // Returns them in a (possibly empty) list.
  61 var getWarnings = function(div, data, opts) {
  62   var warnings = [];
  63   var oldWarn = console.warn;
  64   console.warn = function(message) {
  65     warnings.push(message.replace(/ \(.*/, ''));
  66   };
  67   try {
  68     new Dygraph(graph, data, opts);
  69   } catch (e) {
  70   }
  71   console.warn = oldWarn;
  72   return warnings;
  73 };
  74
  75 DygraphOptionsTestCase.prototype.testLogWarningForNonexistentOption = function() {
  76   if (typeof(Dygraph.OPTIONS_REFERENCE) === 'undefined') {
  77     return;  // this test won't pass in non-debug mode.
  78   }
  79
  80   var graph = document.getElementById("graph");
  81   var data = "X,Y,Y2,Y3\n" +
  82       "1,-1,2,3";
  83
  84   var expectWarning = function(opts, badOptionName) {
  85     DygraphOptions.resetWarnings_();
  86     var warnings = getWarnings(graph, data, opts);
  87     assertEquals(['Unknown option ' + badOptionName], warnings);
  88   };
  89   var expectNoWarning = function(opts) {
  90     DygraphOptions.resetWarnings_();
  91     var warnings = getWarnings(graph, data, opts);
  92     assertEquals([], warnings);
  93   };
  94
  95   expectNoWarning({});
  96   expectWarning({nonExistentOption: true}, 'nonExistentOption');
  97   expectWarning({series: {Y: {nonExistentOption: true}}}, 'nonExistentOption');
  98   // expectWarning({Y: {nonExistentOption: true}});
  99   expectWarning({axes: {y: {anotherNonExistentOption: true}}}, 'anotherNonExistentOption');
 100   expectWarning({highlightSeriesOpts: {anotherNonExistentOption: true}}, 'anotherNonExistentOption');
 101   expectNoWarning({highlightSeriesOpts: {strokeWidth: 20}});
 102   expectNoWarning({strokeWidth: 20});
 103 };
 104
 105 DygraphOptionsTestCase.prototype.testOnlyLogsEachWarningOnce = function() {
 106   if (typeof(Dygraph.OPTIONS_REFERENCE) === 'undefined') {
 107     return;  // this test won't pass in non-debug mode.
 108   }
 109
 110   var graph = document.getElementById("graph");
 111   var data = "X,Y,Y2,Y3\n" +
 112       "1,-1,2,3";
 113
 114   var warnings1 = getWarnings(graph, data, {nonExistent: true});
 115   var warnings2 = getWarnings(graph, data, {nonExistent: true});
 116   assertEquals(['Unknown option nonExistent'], warnings1);
 117   assertEquals([], warnings2);
 118 };