1 require("../env");

     2 require("../../d3");

     3 

     4 var vows = require("vows"),

     5     assert = require("assert");

     6 

     7 var suite = vows.describe("d3.json");

     8 

     9 suite.addBatch({

    10   "json": {

    11     topic: function() {

    12       var cb = this.callback;

    13       return d3.json("examples/data/sample.json", function(json) {

    14         cb(null, json);

    15       });

    16     },

    17     "invokes the callback with the loaded JSON": function(json) {

    18       assert.deepEqual(json, [{"Hello":42,"World":"\"fish\""}]);

    19     },

    20     "overrides the mime type to application/json": function(json) {

    21       assert.equal(XMLHttpRequest._last._info.mimeType, "application/json");

    22     },

    23     "": {

    24       topic: function() {

    25         var cb = this.callback;

    26         return d3.json("//does/not/exist.json", function(json) {

    27           cb(null, json);

    28         });

    29       },

    30       "invokes the callback with null when an error occurs": function(json) {

    31         assert.isNull(json);

    32       }

    33     }

    34   }

    35 });

    36 

    37 suite.export(module);