1 require("../env");

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

     3 

     4 var vows = require("vows"),

     5     assert = require("assert");

     6 

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

     8 

     9 suite.addBatch({

    10   "functor": {

    11     topic: function() {

    12       return d3.functor;

    13     },

    14     "when passed a function, returns the function": function(functor) {

    15       function foo() {}

    16       assert.strictEqual(functor(foo), foo);

    17     },

    18     "when passed a non-function, returns a wrapper function": function(functor) {

    19       var a = {};

    20       assert.isNull(functor(null)());

    21       assert.isUndefined(functor(undefined)());

    22       assert.strictEqual(functor(a)(), a);

    23       assert.strictEqual(functor(1)(), 1);

    24       assert.deepEqual(functor([1])(), [1]);

    25     }

    26   }

    27 });

    28 

    29 suite.export(module);