ipaddr = require '../lib/ipaddr' module.exports = 'should define main classes': (test) -> test.ok(ipaddr.IPv4?, 'defines IPv4 class') test.ok(ipaddr.IPv6?, 'defines IPv6 class') test.done() 'can construct IPv4 from octets': (test) -> test.doesNotThrow -> new ipaddr.IPv4([192, 168, 1, 2]) test.done() 'refuses to construct invalid IPv4': (test) -> test.throws -> new ipaddr.IPv4([300, 1, 2, 3]) test.throws -> new ipaddr.IPv4([8, 8, 8]) test.done() 'converts IPv4 to string correctly': (test) -> addr = new ipaddr.IPv4([192, 168, 1, 1]) test.equal(addr.toString(), '192.168.1.1') test.done() 'returns correct kind for IPv4': (test) -> addr = new ipaddr.IPv4([1, 2, 3, 4]) test.equal(addr.kind(), 'ipv4') test.done() 'allows to access IPv4 octets': (test) -> addr = new ipaddr.IPv4([42, 0, 0, 0]) test.equal(addr.octets[0], 42) test.done() 'checks IPv4 address format': (test) -> test.equal(ipaddr.IPv4.isIPv4('192.168.007.0xa'), true) test.equal(ipaddr.IPv4.isIPv4('1024.0.0.1'), true) test.equal(ipaddr.IPv4.isIPv4('8.0xa.wtf.6'), false) test.done() 'validates IPv4 addresses': (test) -> test.equal(ipaddr.IPv4.isValid('192.168.007.0xa'), true) test.equal(ipaddr.IPv4.isValid('1024.0.0.1'), false) test.equal(ipaddr.IPv4.isValid('8.0xa.wtf.6'), false) test.done() 'parses IPv4 in several weird formats': (test) -> test.deepEqual(ipaddr.IPv4.parse('192.168.1.1').octets, [192, 168, 1, 1]) test.deepEqual(ipaddr.IPv4.parse('0xc0.168.1.1').octets, [192, 168, 1, 1]) test.deepEqual(ipaddr.IPv4.parse('192.0250.1.1').octets, [192, 168, 1, 1]) test.deepEqual(ipaddr.IPv4.parse('0xc0a80101').octets, [192, 168, 1, 1]) test.deepEqual(ipaddr.IPv4.parse('030052000401').octets, [192, 168, 1, 1]) test.deepEqual(ipaddr.IPv4.parse('3232235777').octets, [192, 168, 1, 1]) test.done() 'barfs at invalid IPv4': (test) -> test.throws -> ipaddr.IPv4.parse('10.0.0.wtf') test.done() 'matches IPv4 CIDR correctly': (test) -> addr = new ipaddr.IPv4([10, 5, 0, 1]) test.equal(addr.match(ipaddr.IPv4.parse('0.0.0.0'), 0), true) test.equal(addr.match(ipaddr.IPv4.parse('11.0.0.0'), 8), false) test.equal(addr.match(ipaddr.IPv4.parse('10.0.0.0'), 8), true) test.equal(addr.match(ipaddr.IPv4.parse('10.0.0.1'), 8), true) test.equal(addr.match(ipaddr.IPv4.parse('10.0.0.10'), 8), true) test.equal(addr.match(ipaddr.IPv4.parse('10.5.5.0'), 16), true) test.equal(addr.match(ipaddr.IPv4.parse('10.4.5.0'), 16), false) test.equal(addr.match(ipaddr.IPv4.parse('10.4.5.0'), 15), true) test.equal(addr.match(ipaddr.IPv4.parse('10.5.0.2'), 32), false) test.equal(addr.match(addr, 32), true) test.done() 'parses IPv4 CIDR correctly': (test) -> addr = new ipaddr.IPv4([10, 5, 0, 1]) test.equal(addr.match(ipaddr.IPv4.parseCIDR('0.0.0.0/0')), true) test.equal(addr.match(ipaddr.IPv4.parseCIDR('11.0.0.0/8')), false) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.0.0.0/8')), true) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.0.0.1/8')), true) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.0.0.10/8')), true) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.5.5.0/16')), true) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.4.5.0/16')), false) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.4.5.0/15')), true) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.5.0.2/32')), false) test.equal(addr.match(ipaddr.IPv4.parseCIDR('10.5.0.1/32')), true) test.throws -> ipaddr.IPv4.parseCIDR('10.5.0.1') test.throws -> ipaddr.IPv4.parseCIDR('0.0.0.0/-1') test.throws -> ipaddr.IPv4.parseCIDR('0.0.0.0/33') test.done() 'detects reserved IPv4 networks': (test) -> test.equal(ipaddr.IPv4.parse('0.0.0.0').range(), 'unspecified') test.equal(ipaddr.IPv4.parse('0.1.0.0').range(), 'unspecified') test.equal(ipaddr.IPv4.parse('10.1.0.1').range(), 'private') test.equal(ipaddr.IPv4.parse('100.64.0.0').range(), 'carrierGradeNat') test.equal(ipaddr.IPv4.parse('100.127.255.255').range(), 'carrierGradeNat') test.equal(ipaddr.IPv4.parse('192.168.2.1').range(), 'private') test.equal(ipaddr.IPv4.parse('224.100.0.1').range(), 'multicast') test.equal(ipaddr.IPv4.parse('169.254.15.0').range(), 'linkLocal') test.equal(ipaddr.IPv4.parse('127.1.1.1').range(), 'loopback') test.equal(ipaddr.IPv4.parse('255.255.255.255').range(), 'broadcast') test.equal(ipaddr.IPv4.parse('240.1.2.3').range(), 'reserved') test.equal(ipaddr.IPv4.parse('8.8.8.8').range(), 'unicast') test.done() 'checks the conventional IPv4 address format': (test) -> test.equal(ipaddr.IPv4.isValidFourPartDecimal('192.168.1.1'), true) test.equal(ipaddr.IPv4.isValidFourPartDecimal('0xc0.168.1.1'), false) test.done() 'can construct IPv6 from 16bit parts': (test) -> test.doesNotThrow -> new ipaddr.IPv6([0x2001, 0xdb8, 0xf53a, 0, 0, 0, 0, 1]) test.done() 'can construct IPv6 from 8bit parts': (test) -> test.doesNotThrow -> new ipaddr.IPv6([0x20, 0x01, 0xd, 0xb8, 0xf5, 0x3a, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]) test.deepEqual(new ipaddr.IPv6([0x20, 0x01, 0xd, 0xb8, 0xf5, 0x3a, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]), new ipaddr.IPv6([0x2001, 0xdb8, 0xf53a, 0, 0, 0, 0, 1])) test.done() 'refuses to construct invalid IPv6': (test) -> test.throws -> new ipaddr.IPv6([0xfffff, 0, 0, 0, 0, 0, 0, 1]) test.throws -> new ipaddr.IPv6([0xfffff, 0, 0, 0, 0, 0, 1]) test.throws -> new ipaddr.IPv6([0xffff, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]) test.done() 'converts IPv6 to string correctly': (test) -> addr = new ipaddr.IPv6([0x2001, 0xdb8, 0xf53a, 0, 0, 0, 0, 1]) test.equal(addr.toNormalizedString(), '2001:db8:f53a:0:0:0:0:1') test.equal(addr.toString(), '2001:db8:f53a::1') test.equal(new ipaddr.IPv6([0, 0, 0, 0, 0, 0, 0, 1]).toString(), '::1') test.equal(new ipaddr.IPv6([0x2001, 0xdb8, 0, 0, 0, 0, 0, 0]).toString(), '2001:db8::') test.done() 'returns correct kind for IPv6': (test) -> addr = new ipaddr.IPv6([0x2001, 0xdb8, 0xf53a, 0, 0, 0, 0, 1]) test.equal(addr.kind(), 'ipv6') test.done() 'allows to access IPv6 address parts': (test) -> addr = new ipaddr.IPv6([0x2001, 0xdb8, 0xf53a, 0, 0, 42, 0, 1]) test.equal(addr.parts[5], 42) test.done() 'checks IPv6 address format': (test) -> test.equal(ipaddr.IPv6.isIPv6('2001:db8:F53A::1'), true) test.equal(ipaddr.IPv6.isIPv6('200001::1'), true) test.equal(ipaddr.IPv6.isIPv6('::ffff:192.168.1.1'), true) test.equal(ipaddr.IPv6.isIPv6('::ffff:300.168.1.1'), false) test.equal(ipaddr.IPv6.isIPv6('::ffff:300.168.1.1:0'), false) test.equal(ipaddr.IPv6.isIPv6('fe80::wtf'), false) test.done() 'validates IPv6 addresses': (test) -> test.equal(ipaddr.IPv6.isValid('2001:db8:F53A::1'), true) test.equal(ipaddr.IPv6.isValid('200001::1'), false) test.equal(ipaddr.IPv6.isValid('::ffff:192.168.1.1'), true) test.equal(ipaddr.IPv6.isValid('::ffff:300.168.1.1'), false) test.equal(ipaddr.IPv6.isValid('::ffff:300.168.1.1:0'), false) test.equal(ipaddr.IPv6.isValid('::ffff:222.1.41.9000'), false) test.equal(ipaddr.IPv6.isValid('2001:db8::F53A::1'), false) test.equal(ipaddr.IPv6.isValid('fe80::wtf'), false) test.equal(ipaddr.IPv6.isValid('2002::2:'), false) test.equal(ipaddr.IPv6.isValid(undefined), false) test.done() 'parses IPv6 in different formats': (test) -> test.deepEqual(ipaddr.IPv6.parse('2001:db8:F53A:0:0:0:0:1').parts, [0x2001, 0xdb8, 0xf53a, 0, 0, 0, 0, 1]) test.deepEqual(ipaddr.IPv6.parse('fe80::10').parts, [0xfe80, 0, 0, 0, 0, 0, 0, 0x10]) test.deepEqual(ipaddr.IPv6.parse('2001:db8:F53A::').parts, [0x2001, 0xdb8, 0xf53a, 0, 0, 0, 0, 0]) test.deepEqual(ipaddr.IPv6.parse('::1').parts, [0, 0, 0, 0, 0, 0, 0, 1]) test.deepEqual(ipaddr.IPv6.parse('::').parts, [0, 0, 0, 0, 0, 0, 0, 0]) test.done() 'barfs at invalid IPv6': (test) -> test.throws -> ipaddr.IPv6.parse('fe80::0::1') test.done() 'matches IPv6 CIDR correctly': (test) -> addr = ipaddr.IPv6.parse('2001:db8:f53a::1') test.equal(addr.match(ipaddr.IPv6.parse('::'), 0), true) test.equal(addr.match(ipaddr.IPv6.parse('2001:db8:f53a::1:1'), 64), true) test.equal(addr.match(ipaddr.IPv6.parse('2001:db8:f53b::1:1'), 48), false) test.equal(addr.match(ipaddr.IPv6.parse('2001:db8:f531::1:1'), 44), true) test.equal(addr.match(ipaddr.IPv6.parse('2001:db8:f500::1'), 40), true) test.equal(addr.match(ipaddr.IPv6.parse('2001:db9:f500::1'), 40), false) test.equal(addr.match(addr, 128), true) test.done() 'parses IPv6 CIDR correctly': (test) -> addr = ipaddr.IPv6.parse('2001:db8:f53a::1') test.equal(addr.match(ipaddr.IPv6.parseCIDR('::/0')), true) test.equal(addr.match(ipaddr.IPv6.parseCIDR('2001:db8:f53a::1:1/64')), true) test.equal(addr.match(ipaddr.IPv6.parseCIDR('2001:db8:f53b::1:1/48')), false) test.equal(addr.match(ipaddr.IPv6.parseCIDR('2001:db8:f531::1:1/44')), true) test.equal(addr.match(ipaddr.IPv6.parseCIDR('2001:db8:f500::1/40')), true) test.equal(addr.match(ipaddr.IPv6.parseCIDR('2001:db9:f500::1/40')), false) test.equal(addr.match(ipaddr.IPv6.parseCIDR('2001:db8:f53a::1/128')), true) test.throws -> ipaddr.IPv6.parseCIDR('2001:db8:f53a::1') test.throws -> ipaddr.IPv6.parseCIDR('2001:db8:f53a::1/-1') test.throws -> ipaddr.IPv6.parseCIDR('2001:db8:f53a::1/129') test.done() 'converts between IPv4-mapped IPv6 addresses and IPv4 addresses': (test) -> addr = ipaddr.IPv4.parse('77.88.21.11') mapped = addr.toIPv4MappedAddress() test.deepEqual(mapped.parts, [0, 0, 0, 0, 0, 0xffff, 0x4d58, 0x150b]) test.deepEqual(mapped.toIPv4Address().octets, addr.octets) test.done() 'refuses to convert non-IPv4-mapped IPv6 address to IPv4 address': (test) -> test.throws -> ipaddr.IPv6.parse('2001:db8::1').toIPv4Address() test.done() 'detects reserved IPv6 networks': (test) -> test.equal(ipaddr.IPv6.parse('::').range(), 'unspecified') test.equal(ipaddr.IPv6.parse('fe80::1234:5678:abcd:0123').range(), 'linkLocal') test.equal(ipaddr.IPv6.parse('ff00::1234').range(), 'multicast') test.equal(ipaddr.IPv6.parse('::1').range(), 'loopback') test.equal(ipaddr.IPv6.parse('fc00::').range(), 'uniqueLocal') test.equal(ipaddr.IPv6.parse('::ffff:192.168.1.10').range(), 'ipv4Mapped') test.equal(ipaddr.IPv6.parse('::ffff:0:192.168.1.10').range(), 'rfc6145') test.equal(ipaddr.IPv6.parse('64:ff9b::1234').range(), 'rfc6052') test.equal(ipaddr.IPv6.parse('2002:1f63:45e8::1').range(), '6to4') test.equal(ipaddr.IPv6.parse('2001::4242').range(), 'teredo') test.equal(ipaddr.IPv6.parse('2001:db8::3210').range(), 'reserved') test.equal(ipaddr.IPv6.parse('2001:470:8:66::1').range(), 'unicast') test.done() 'is able to determine IP address type': (test) -> test.equal(ipaddr.parse('8.8.8.8').kind(), 'ipv4') test.equal(ipaddr.parse('2001:db8:3312::1').kind(), 'ipv6') test.done() 'throws an error if tried to parse an invalid address': (test) -> test.throws -> ipaddr.parse('::some.nonsense') test.done() 'correctly processes IPv4-mapped addresses': (test) -> test.equal(ipaddr.process('8.8.8.8').kind(), 'ipv4') test.equal(ipaddr.process('2001:db8:3312::1').kind(), 'ipv6') test.equal(ipaddr.process('::ffff:192.168.1.1').kind(), 'ipv4') test.done() 'correctly converts IPv6 and IPv4 addresses to byte arrays': (test) -> test.deepEqual(ipaddr.parse('1.2.3.4').toByteArray(), [0x1, 0x2, 0x3, 0x4]); # Fuck yeah. The first byte of Google's IPv6 address is 42. 42! test.deepEqual(ipaddr.parse('2a00:1450:8007::68').toByteArray(), [42, 0x00, 0x14, 0x50, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x68 ]) test.done() 'correctly parses 1 as an IPv4 address': (test) -> test.equal(ipaddr.IPv6.isValid('1'), false) test.equal(ipaddr.IPv4.isValid('1'), true) test.deepEqual(new ipaddr.IPv4([0, 0, 0, 1]), ipaddr.parse('1')) test.done() 'correctly detects IPv4 and IPv6 CIDR addresses': (test) -> test.deepEqual([ipaddr.IPv6.parse('fc00::'), 64], ipaddr.parseCIDR('fc00::/64')) test.deepEqual([ipaddr.IPv4.parse('1.2.3.4'), 5], ipaddr.parseCIDR('1.2.3.4/5')) test.done() 'does not consider a very large or very small number a valid IP address': (test) -> test.equal(ipaddr.isValid('4999999999'), false) test.equal(ipaddr.isValid('-1'), false) test.done() 'does not hang on ::8:8:8:8:8:8:8:8:8': (test) -> test.equal(ipaddr.IPv6.isValid('::8:8:8:8:8:8:8:8:8'), false) test.done() 'subnetMatch does not fail on empty range': (test) -> ipaddr.subnetMatch(new ipaddr.IPv4([1,2,3,4]), {}, false) ipaddr.subnetMatch(new ipaddr.IPv4([1,2,3,4]), {subnet: []}, false) test.done() 'subnetMatch returns default subnet on empty range': (test) -> test.equal(ipaddr.subnetMatch(new ipaddr.IPv4([1,2,3,4]), {}, false), false) test.equal(ipaddr.subnetMatch(new ipaddr.IPv4([1,2,3,4]), {subnet: []}, false), false) test.done() 'is able to determine IP address type from byte array input': (test) -> test.equal(ipaddr.fromByteArray([0x7f, 0, 0, 1]).kind(), 'ipv4') test.equal(ipaddr.fromByteArray([0x20, 0x01, 0xd, 0xb8, 0xf5, 0x3a, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]).kind(), 'ipv6') test.throws -> ipaddr.fromByteArray([1]) test.done() 'prefixLengthFromSubnetMask returns proper CIDR notation for standard IPv4 masks': (test) -> test.equal(ipaddr.IPv4.parse('255.255.255.255').prefixLengthFromSubnetMask(), 32) test.equal(ipaddr.IPv4.parse('255.255.255.254').prefixLengthFromSubnetMask(), 31) test.equal(ipaddr.IPv4.parse('255.255.255.252').prefixLengthFromSubnetMask(), 30) test.equal(ipaddr.IPv4.parse('255.255.255.248').prefixLengthFromSubnetMask(), 29) test.equal(ipaddr.IPv4.parse('255.255.255.240').prefixLengthFromSubnetMask(), 28) test.equal(ipaddr.IPv4.parse('255.255.255.224').prefixLengthFromSubnetMask(), 27) test.equal(ipaddr.IPv4.parse('255.255.255.192').prefixLengthFromSubnetMask(), 26) test.equal(ipaddr.IPv4.parse('255.255.255.128').prefixLengthFromSubnetMask(), 25) test.equal(ipaddr.IPv4.parse('255.255.255.0').prefixLengthFromSubnetMask(), 24) test.equal(ipaddr.IPv4.parse('255.255.254.0').prefixLengthFromSubnetMask(), 23) test.equal(ipaddr.IPv4.parse('255.255.252.0').prefixLengthFromSubnetMask(), 22) test.equal(ipaddr.IPv4.parse('255.255.248.0').prefixLengthFromSubnetMask(), 21) test.equal(ipaddr.IPv4.parse('255.255.240.0').prefixLengthFromSubnetMask(), 20) test.equal(ipaddr.IPv4.parse('255.255.224.0').prefixLengthFromSubnetMask(), 19) test.equal(ipaddr.IPv4.parse('255.255.192.0').prefixLengthFromSubnetMask(), 18) test.equal(ipaddr.IPv4.parse('255.255.128.0').prefixLengthFromSubnetMask(), 17) test.equal(ipaddr.IPv4.parse('255.255.0.0').prefixLengthFromSubnetMask(), 16) test.equal(ipaddr.IPv4.parse('255.254.0.0').prefixLengthFromSubnetMask(), 15) test.equal(ipaddr.IPv4.parse('255.252.0.0').prefixLengthFromSubnetMask(), 14) test.equal(ipaddr.IPv4.parse('255.248.0.0').prefixLengthFromSubnetMask(), 13) test.equal(ipaddr.IPv4.parse('255.240.0.0').prefixLengthFromSubnetMask(), 12) test.equal(ipaddr.IPv4.parse('255.224.0.0').prefixLengthFromSubnetMask(), 11) test.equal(ipaddr.IPv4.parse('255.192.0.0').prefixLengthFromSubnetMask(), 10) test.equal(ipaddr.IPv4.parse('255.128.0.0').prefixLengthFromSubnetMask(), 9) test.equal(ipaddr.IPv4.parse('255.0.0.0').prefixLengthFromSubnetMask(), 8) test.equal(ipaddr.IPv4.parse('254.0.0.0').prefixLengthFromSubnetMask(), 7) test.equal(ipaddr.IPv4.parse('252.0.0.0').prefixLengthFromSubnetMask(), 6) test.equal(ipaddr.IPv4.parse('248.0.0.0').prefixLengthFromSubnetMask(), 5) test.equal(ipaddr.IPv4.parse('240.0.0.0').prefixLengthFromSubnetMask(), 4) test.equal(ipaddr.IPv4.parse('224.0.0.0').prefixLengthFromSubnetMask(), 3) test.equal(ipaddr.IPv4.parse('192.0.0.0').prefixLengthFromSubnetMask(), 2) test.equal(ipaddr.IPv4.parse('128.0.0.0').prefixLengthFromSubnetMask(), 1) test.equal(ipaddr.IPv4.parse('0.0.0.0').prefixLengthFromSubnetMask(), 0) # negative cases test.equal(ipaddr.IPv4.parse('192.168.255.0').prefixLengthFromSubnetMask(), null) test.equal(ipaddr.IPv4.parse('255.0.255.0').prefixLengthFromSubnetMask(), null) test.done() 'subnetMaskFromPrefixLength returns correct subnet mask given prefix length': (test) -> test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("0"), "0.0.0.0"); test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("1"), "128.0.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("2"), "192.0.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("3"), "224.0.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("4"), "240.0.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("5"), "248.0.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("6"), "252.0.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("7"), "254.0.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("8"), "255.0.0.0"); test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("9"), "255.128.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("10"), "255.192.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("11"), "255.224.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("12"), "255.240.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("13"), "255.248.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("14"), "255.252.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("15"), "255.254.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("16"), "255.255.0.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("17"), "255.255.128.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("18"), "255.255.192.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("19"), "255.255.224.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("20"), "255.255.240.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("21"), "255.255.248.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("22"), "255.255.252.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("23"), "255.255.254.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("24"), "255.255.255.0") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("25"), "255.255.255.128") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("26"), "255.255.255.192") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("27"), "255.255.255.224") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("28"), "255.255.255.240") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("29"), "255.255.255.248") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("30"), "255.255.255.252") test.equal(ipaddr.IPv4.subnetMaskFromPrefixLength("31"), "255.255.255.254") test.done() 'broadcastAddressFromCIDR returns correct broadcast address': (test) -> test.equal(ipaddr.IPv4.broadcastAddressFromCIDR("172.0.0.1/24"), "172.0.0.255") test.equal(ipaddr.IPv4.broadcastAddressFromCIDR("172.0.0.1/26"), "172.0.0.63") test.done() 'networkAddressFromCIDR returns correct network address': (test) -> test.equal(ipaddr.IPv4.networkAddressFromCIDR("172.0.0.1/24"), "172.0.0.0") test.equal(ipaddr.IPv4.networkAddressFromCIDR("172.0.0.1/5"), "168.0.0.0") test.done()