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 import OPTIONS_REFERENCE from '../../src/dygraph-options-reference';
   8
   9 describe("dygraph-options-tests", function() {
  10
  11 cleanupAfterEach();
  12
  13 var graph;
  14
  15 beforeEach(function() {
  16   graph = document.getElementById("graph");
  17 });
  18
  19 /*
  20  * Pathalogical test to ensure getSeriesNames works
  21  */
  22 it('testGetSeriesNames', function() {
  23   var opts = {
  24     width: 480,
  25     height: 320
  26   };
  27   var data = "X,Y,Y2,Y3\n" +
  28       "0,-1,0,0";
  29
  30   // Kind of annoying that you need a DOM to test the object.
  31   var g = new Dygraph(graph, data, opts);
  32
  33   // We don't need to get at g's attributes_ object just
  34   // to test DygraphOptions.
  35   var o = new DygraphOptions(g);
  36   assert.deepEqual(["Y", "Y2", "Y3"], o.seriesNames());
  37 });
  38
  39 /*
  40  * Ensures that even if logscale is set globally, it doesn't impact the
  41  * x axis.
  42  */
  43 it('testGetLogscaleForX', function() {
  44   var opts = {
  45     width: 480,
  46     height: 320
  47   };
  48   var data = "X,Y,Y2,Y3\n" +
  49       "1,-1,2,3";
  50
  51   // Kind of annoying that you need a DOM to test the object.
  52   var g = new Dygraph(graph, data, opts);
  53
  54   assert.isFalse(!!g.getOptionForAxis('logscale', 'x'));
  55   assert.isFalse(!!g.getOptionForAxis('logscale', 'y'));
  56
  57   g.updateOptions({ logscale : true });
  58   assert.isFalse(!!g.getOptionForAxis('logscale', 'x'));
  59   assert.isTrue(!!g.getOptionForAxis('logscale', 'y'));
  60 });
  61
  62 // Helper to gather all warnings emitted by Dygraph constructor.
  63 // Removes everything after the first open parenthesis in each warning.
  64 // Returns them in a (possibly empty) list.
  65 var getWarnings = function(div, data, opts) {
  66   var warnings = [];
  67   var oldWarn = console.warn;
  68   console.warn = function(message) {
  69     warnings.push(message.replace(/ \(.*/, ''));
  70   };
  71   try {
  72     new Dygraph(graph, data, opts);
  73   } catch (e) {
  74   }
  75   console.warn = oldWarn;
  76   return warnings;
  77 };
  78
  79 it('testLogWarningForNonexistentOption', function() {
  80   if (!OPTIONS_REFERENCE) {
  81     return;  // this test won't pass in non-debug mode.
  82   }
  83
  84   var data = "X,Y,Y2,Y3\n" +
  85       "1,-1,2,3";
  86
  87   var expectWarning = function(opts, badOptionName) {
  88     DygraphOptions.resetWarnings_();
  89     var warnings = getWarnings(graph, data, opts);
  90     assert.deepEqual(['Unknown option ' + badOptionName], warnings);
  91   };
  92   var expectNoWarning = function(opts) {
  93     DygraphOptions.resetWarnings_();
  94     var warnings = getWarnings(graph, data, opts);
  95     assert.deepEqual([], warnings);
  96   };
  97
  98   expectNoWarning({});
  99   expectWarning({nonExistentOption: true}, 'nonExistentOption');
 100   expectWarning({series: {Y: {nonExistentOption: true}}}, 'nonExistentOption');
 101   // expectWarning({Y: {nonExistentOption: true}});
 102   expectWarning({axes: {y: {anotherNonExistentOption: true}}}, 'anotherNonExistentOption');
 103   expectWarning({highlightSeriesOpts: {anotherNonExistentOption: true}}, 'anotherNonExistentOption');
 104   expectNoWarning({highlightSeriesOpts: {strokeWidth: 20}});
 105   expectNoWarning({strokeWidth: 20});
 106 });
 107
 108 it('testOnlyLogsEachWarningOnce', function() {
 109   if (!OPTIONS_REFERENCE) {
 110     return;  // this test won't pass in non-debug mode.
 111   }
 112
 113   var data = "X,Y,Y2,Y3\n" +
 114       "1,-1,2,3";
 115
 116   var warnings1 = getWarnings(graph, data, {nonExistent: true});
 117   var warnings2 = getWarnings(graph, data, {nonExistent: true});
 118   assert.deepEqual(['Unknown option nonExistent'], warnings1);
 119   assert.deepEqual([], warnings2);
 120 });
 121
 122 });