wsemi/test/isnan.test.mjs

A support package for web developer.

import assert from 'assert'
import isnan from '../src/isnan.mjs'


describe(`isnan`, function() {

    it(`should return false when input '2019-01-01'`, function() {
        let r = isnan('2019-01-01')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '2019-21-01'`, function() {
        let r = isnan('2019-21-01')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '2019-01'`, function() {
        let r = isnan('2019-01')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '2019-21'`, function() {
        let r = isnan('2019-21')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input function() {}`, function() {
        let r = isnan(function() {})
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input 0`, function() {
        let r = isnan(0)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input 125`, function() {
        let r = isnan(125)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input -125`, function() {
        let r = isnan(-125)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input 1.25`, function() {
        let r = isnan(1.25)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input -1.25`, function() {
        let r = isnan(-1.25)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '0'`, function() {
        let r = isnan('0')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '125'`, function() {
        let r = isnan('125')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '-125'`, function() {
        let r = isnan('-125')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '1.25'`, function() {
        let r = isnan('1.25')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '-1.25'`, function() {
        let r = isnan('-1.25')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '125abc'`, function() {
        let r = isnan('125abc')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input 'abc125'`, function() {
        let r = isnan('abc125')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input '12a5'`, function() {
        let r = isnan('12a5')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input ''`, function() {
        let r = isnan('')
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input false`, function() {
        let r = isnan(false)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input []`, function() {
        let r = isnan([])
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input [{}]`, function() {
        let r = isnan([{}])
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input [{ a: 123 }]`, function() {
        let r = isnan([{ a: 123 }])
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input ['']`, function() {
        let r = isnan([''])
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input ['abc']`, function() {
        let r = isnan(['abc'])
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input {}`, function() {
        let r = isnan({})
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input { a: 123 }`, function() {
        let r = isnan({ a: 123 })
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input { a: 123, b: null, c: [45.67] }`, function() {
        let r = isnan({ a: 123, b: null, c: [45.67] })
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return true when input null`, function() {
        let r = isnan(null)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input undefined`, function() {
        let r = isnan(undefined)
        assert.strict.deepStrictEqual(r, false)
    })

    it(`should return false when input NaN`, function() {
        let r = isnan(NaN)
        assert.strict.deepStrictEqual(r, true)
    })

})