it('returns false when value is null', function () {
expect(ipv4Interface(null)).to.equal(false)
})
it('returns false when invalid IPv4 interface', function () {
expect(ipv4Interface('192.168.0.0/16')).to.equal(false)
expect(ipv4Interface('192.168.255.255/16')).to.equal(false)
})
it('returns true when valid IPv4 interface', function () {
expect(ipv4Interface('192.168.128.0/16')).to.equal(true)
expect(ipv4Interface('192.168.0.1/16')).to.equal(true)
})
it('returns false when octets contain numbers > 255', function () {
expect(ipv4Interface('256.101.102.103/0')).to.equal(false)
expect(ipv4Interface('100.256.102.103/0')).to.equal(false)
expect(ipv4Interface('100.101.256.103/0')).to.equal(false)
expect(ipv4Interface('100.101.102.256/0')).to.equal(false)
})
it('returns false when first octet contains numbers > 253', function () {
expect(ipv4Interface('254.0.0.0/0')).to.equal(false)
expect(ipv4Interface('255.0.0.0/0')).to.equal(false)
})
it('returns false when value is undefined', function () {
expect(ipv4Interface(undefined)).to.equal(false)
})
it('returns false when octets contain negative numbers', function () {
expect(ipv4Interface('-100.101.102.103/0')).to.equal(false)
expect(ipv4Interface('100.-101.102.103/0')).to.equal(false)
expect(ipv4Interface('100.101.-102.103/0')).to.equal(false)
expect(ipv4Interface('100.101.102.-103/0')).to.equal(false)
})
it('returns false when ip address does not consist of four octets', function () {
expect(ipv4Interface('100.101.102/0')).to.equal(false)
})
it('returns false when octets contain non-numeric characters', function () {
expect(ipv4Interface('100a.101.102.103/0')).to.equal(false)
expect(ipv4Interface('100.101a.102.103/0')).to.equal(false)
expect(ipv4Interface('100.101.102a.103/0')).to.equal(false)
expect(ipv4Interface('100.101.102.103a/0')).to.equal(false)
})
it('returns false when value is Infinity', function () {
expect(ipv4Interface(Infinity)).to.equal(false)
})
it('returns false when network mask is missing', function () {
expect(ipv4Interface('100.101.102.103')).to.equal(false)
})
it('returns false when value is NaN', function () {
expect(ipv4Interface(NaN)).to.equal(false)
})
it('returns false when value is a float', function () {
expect(ipv4Interface(0.5)).to.equal(false)
})
it('returns false when value is an integer', function () {
expect(ipv4Interface(1)).to.equal(false)
})
it('returns false when value is an array', function () {
expect(ipv4Interface([])).to.equal(false)
})
it('returns false when value is an object', function () {
expect(ipv4Interface({})).to.equal(false)
})