auto_tests/tests/dygraph-options-tests.js

   1 /**
   2  * @fileoverview Test cases for DygraphOptions.
   3  */
   4 describe("dygraph-options-tests", function() {
   5
   6 var graph;
   7
   8 beforeEach(function() {
   9   document.body.innerHTML = "<div id='graph'></div>";
  10   graph = document.getElementById("graph");
  11 });
  12
  13 afterEach(function() {
  14 });
  15
  16 /*
  17  * Pathalogical test to ensure getSeriesNames works
  18  */
  19 it('testGetSeriesNames', function() {
  20   var opts = {
  21     width: 480,
  22     height: 320
  23   };
  24   var data = "X,Y,Y2,Y3\n" +
  25       "0,-1,0,0";
  26
  27   // Kind of annoying that you need a DOM to test the object.
  28   var g = new Dygraph(graph, data, opts);
  29
  30   // We don't need to get at g's attributes_ object just
  31   // to test DygraphOptions.
  32   var o = new DygraphOptions(g);
  33   assert.deepEqual(["Y", "Y2", "Y3"], o.seriesNames());
  34 });
  35
  36 /*
  37  * Ensures that even if logscale is set globally, it doesn't impact the
  38  * x axis.
  39  */
  40 it('testGetLogscaleForX', function() {
  41   var opts = {
  42     width: 480,
  43     height: 320
  44   };
  45   var data = "X,Y,Y2,Y3\n" +
  46       "1,-1,2,3";
  47
  48   // Kind of annoying that you need a DOM to test the object.
  49   var g = new Dygraph(graph, data, opts);
  50
  51   assert.isFalse(!!g.getOptionForAxis('logscale', 'x'));
  52   assert.isFalse(!!g.getOptionForAxis('logscale', 'y'));
  53
  54   g.updateOptions({ logscale : true });
  55   assert.isFalse(!!g.getOptionForAxis('logscale', 'x'));
  56   assert.isTrue(!!g.getOptionForAxis('logscale', 'y'));
  57 });
  58
  59 // Helper to gather all warnings emitted by Dygraph constructor.
  60 // Removes everything after the first open parenthesis in each warning.
  61 // Returns them in a (possibly empty) list.
  62 var getWarnings = function(div, data, opts) {
  63   var warnings = [];
  64   var oldWarn = console.warn;
  65   console.warn = function(message) {
  66     warnings.push(message.replace(/ \(.*/, ''));
  67   };
  68   try {
  69     new Dygraph(graph, data, opts);
  70   } catch (e) {
  71   }
  72   console.warn = oldWarn;
  73   return warnings;
  74 };
  75
  76 it('testLogWarningForNonexistentOption', function() {
  77   if (typeof(Dygraph.OPTIONS_REFERENCE) === 'undefined') {
  78     return;  // this test won't pass in non-debug mode.
  79   }
  80
  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     assert.deepEqual(['Unknown option ' + badOptionName], warnings);
  88   };
  89   var expectNoWarning = function(opts) {
  90     DygraphOptions.resetWarnings_();
  91     var warnings = getWarnings(graph, data, opts);
  92     assert.deepEqual([], 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 it('testOnlyLogsEachWarningOnce', function() {
 106   if (typeof(Dygraph.OPTIONS_REFERENCE) === 'undefined') {
 107     return;  // this test won't pass in non-debug mode.
 108   }
 109
 110   var data = "X,Y,Y2,Y3\n" +
 111       "1,-1,2,3";
 112
 113   var warnings1 = getWarnings(graph, data, {nonExistent: true});
 114   var warnings2 = getWarnings(graph, data, {nonExistent: true});
 115   assert.deepEqual(['Unknown option nonExistent'], warnings1);
 116   assert.deepEqual([], warnings2);
 117 });
 118
 119 });