fluentnode/test/misc/node-bugs.coffee.txt

Fluent apis for node (based on the concepts used in C#'s FluentSharp

#renamed to .txt due to issue with coveralls


require '../../src/assert/assert_Function'

assert = require 'assert'

describe '| misc | node-bugs',->

  it 'Issue 9127 - assert.notEqual does not work for NaN',->  # https://github.com/joyent/node/issues/9127

    # there are all fine
    (-> assert.notEqual 1, 1         ).assert_Throws (error)-> error.message.assert_Is '1 != 1'
    (-> assert.notEqual 2, 2         ).assert_Throws (error)-> error.message.assert_Is '2 != 2'
    (-> assert.notEqual 'a','a'      ).assert_Throws (error)-> error.message.assert_Is '"a" != "a"'
    (-> assert.notEqual 1,1,'abc'    ).assert_Throws (error)-> error.message.assert_Is 'abc'
    (-> assert.notEqual 'a','a','abc').assert_Throws (error)-> error.message.assert_Is 'abc'
    assert.notEqual 1,2
    assert.notEqual 'a','b'

    #these are the ones that are not working as expected
    nan = NaN
    assert.notEqual NaN,NaN
    assert.notEqual nan,NaN
    assert.notEqual NaN,nan
    assert.notEqual Number('aaa'),Number('aaa')     # Number('aaa') is NaN
    assert.notEqual new Number('aaa').valueOf(),    # new Number('aaa') is NaN
                    new Number('aaa').valueOf()
    assert.notEqual Number('aaa'),NaN
    assert.notEqual NaN, null


    #confiming that multiple ways to get NaN are indeed 'NaN'
    assert.ok(Number('aaa').toString() is new Number('aaa').valueOf().toString())
    assert.ok(Number('aaa').toString() is NaN.toString())
    assert.ok(Number('aaa').toString() is 'NaN')
    assert.ok(NaN.toString()           is 'NaN')