1 require("../env");

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

     3 

     4 var vows = require("vows"),

     5     assert = require("assert");

     6 

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

     8 

     9 suite.addBatch({

    10   "text": {

    11     topic: function() {

    12       var cb = this.callback;

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

    14         cb(null, text);

    15       });

    16     },

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

    18       assert.equal(text, "Hello, world!\n");

    19     },

    20     "does not override the mime type by default": function(text) {

    21       assert.isUndefined(XMLHttpRequest._last._info.mimeType);

    22     },

    23     "": {

    24       topic: function() {

    25         var cb = this.callback;

    26         return d3.text("examples/data/sample.txt", "text/plain+sample", function(text) {

    27           cb(null, text);

    28         });

    29       },

    30       "observes the optional mime type": function(text) {

    31         assert.equal(XMLHttpRequest._last._info.mimeType, "text/plain+sample");

    32       }

    33     },

    34     " ": {

    35       topic: function() {

    36         var cb = this.callback;

    37         return d3.text("//does/not/exist.txt", function(text) {

    38           cb(null, text);

    39         });

    40       },

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

    42         assert.isNull(text);

    43       }

    44     }

    45   }

    46 });

    47 

    48 suite.export(module);