require("../env");

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

var vows = require("vows"),

    assert = require("assert");

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

suite.addBatch({

  "json": {

    topic: function() {

      var cb = this.callback;

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

        cb(null, json);

      });

    },

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

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

    },

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

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

    },

    "": {

      topic: function() {

        var cb = this.callback;

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

          cb(null, json);

        });

      },

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

        assert.isNull(json);

      }

    }

  }

});

suite.export(module);