auto_tests/tests/dygraph-options-tests.js

   1 /**
   2  * @fileoverview Test cases for DygraphOptions.
   3  */
   4
   5 import Dygraph from '../../src/dygraph';
   6 import DygraphOptions from '../../src/dygraph-options';
   7
   8 describe("dygraph-options-tests", function() {
   9
  10 cleanupAfterEach();
  11
  12 var graph;
  13
  14 beforeEach(function() {
  15   graph = document.getElementById("graph");
  16 });
  17
  18 /*
  19  * Pathalogical test to ensure getSeriesNames works
  20  */
  21 it('testGetSeriesNames', function() {
  22   var opts = {
  23     width: 480,
  24     height: 320
  25   };
  26   var data = "X,Y,Y2,Y3\n" +
  27       "0,-1,0,0";
  28
  29   // Kind of annoying that you need a DOM to test the object.
  30   var g = new Dygraph(graph, data, opts);
  31
  32   // We don't need to get at g's attributes_ object just
  33   // to test DygraphOptions.
  34   var o = new DygraphOptions(g);
  35   assert.deepEqual(["Y", "Y2", "Y3"], o.seriesNames());
  36 });
  37
  38 /*
  39  * Ensures that even if logscale is set globally, it doesn't impact the
  40  * x axis.
  41  */
  42 it('testGetLogscaleForX', function() {
  43   var opts = {
  44     width: 480,
  45     height: 320
  46   };
  47   var data = "X,Y,Y2,Y3\n" +
  48       "1,-1,2,3";
  49
  50   // Kind of annoying that you need a DOM to test the object.
  51   var g = new Dygraph(graph, data, opts);
  52
  53   assert.isFalse(!!g.getOptionForAxis('logscale', 'x'));
  54   assert.isFalse(!!g.getOptionForAxis('logscale', 'y'));
  55
  56   g.updateOptions({ logscale : true });
  57   assert.isFalse(!!g.getOptionForAxis('logscale', 'x'));
  58   assert.isTrue(!!g.getOptionForAxis('logscale', 'y'));
  59 });
  60
  61 // Helper to gather all warnings emitted by Dygraph constructor.
  62 // Removes everything after the first open parenthesis in each warning.
  63 // Returns them in a (possibly empty) list.
  64 var getWarnings = function(div, data, opts) {
  65   var warnings = [];
  66   var oldWarn = console.warn;
  67   console.warn = function(message) {
  68     warnings.push(message.replace(/ \(.*/, ''));
  69   };
  70   try {
  71     new Dygraph(graph, data, opts);
  72   } catch (e) {
  73   }
  74   console.warn = oldWarn;
  75   return warnings;
  76 };
  77
  78 it('testLogWarningForNonexistentOption', function() {
  79   if (typeof(Dygraph.OPTIONS_REFERENCE) === 'undefined') {
  80     return;  // this test won't pass in non-debug mode.
  81   }
  82
  83   var data = "X,Y,Y2,Y3\n" +
  84       "1,-1,2,3";
  85
  86   var expectWarning = function(opts, badOptionName) {
  87     DygraphOptions.resetWarnings_();
  88     var warnings = getWarnings(graph, data, opts);
  89     assert.deepEqual(['Unknown option ' + badOptionName], warnings);
  90   };
  91   var expectNoWarning = function(opts) {
  92     DygraphOptions.resetWarnings_();
  93     var warnings = getWarnings(graph, data, opts);
  94     assert.deepEqual([], warnings);
  95   };
  96
  97   expectNoWarning({});
  98   expectWarning({nonExistentOption: true}, 'nonExistentOption');
  99   expectWarning({series: {Y: {nonExistentOption: true}}}, 'nonExistentOption');
 100   // expectWarning({Y: {nonExistentOption: true}});
 101   expectWarning({axes: {y: {anotherNonExistentOption: true}}}, 'anotherNonExistentOption');
 102   expectWarning({highlightSeriesOpts: {anotherNonExistentOption: true}}, 'anotherNonExistentOption');
 103   expectNoWarning({highlightSeriesOpts: {strokeWidth: 20}});
 104   expectNoWarning({strokeWidth: 20});
 105 });
 106
 107 it('testOnlyLogsEachWarningOnce', function() {
 108   if (typeof(Dygraph.OPTIONS_REFERENCE) === 'undefined') {
 109     return;  // this test won't pass in non-debug mode.
 110   }
 111
 112   var data = "X,Y,Y2,Y3\n" +
 113       "1,-1,2,3";
 114
 115   var warnings1 = getWarnings(graph, data, {nonExistent: true});
 116   var warnings2 = getWarnings(graph, data, {nonExistent: true});
 117   assert.deepEqual(['Unknown option nonExistent'], warnings1);
 118   assert.deepEqual([], warnings2);
 119 });
 120
 121 });