diff options
Diffstat (limited to 'spec/util_ip_spec.lua')
| -rw-r--r-- | spec/util_ip_spec.lua | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/spec/util_ip_spec.lua b/spec/util_ip_spec.lua new file mode 100644 index 00000000..be5e4cff --- /dev/null +++ b/spec/util_ip_spec.lua @@ -0,0 +1,103 @@ + +local ip = require "util.ip"; + +local new_ip = ip.new_ip; +local match = ip.match; +local parse_cidr = ip.parse_cidr; +local commonPrefixLength = ip.commonPrefixLength; + +describe("util.ip", function() + describe("#match()", function() + it("should work", function() + local _ = new_ip; + local ip = _"10.20.30.40"; + assert.are.equal(match(ip, _"10.0.0.0", 8), true); + assert.are.equal(match(ip, _"10.0.0.0", 16), false); + assert.are.equal(match(ip, _"10.0.0.0", 24), false); + assert.are.equal(match(ip, _"10.0.0.0", 32), false); + + assert.are.equal(match(ip, _"10.20.0.0", 8), true); + assert.are.equal(match(ip, _"10.20.0.0", 16), true); + assert.are.equal(match(ip, _"10.20.0.0", 24), false); + assert.are.equal(match(ip, _"10.20.0.0", 32), false); + + assert.are.equal(match(ip, _"0.0.0.0", 32), false); + assert.are.equal(match(ip, _"0.0.0.0", 0), true); + assert.are.equal(match(ip, _"0.0.0.0"), false); + + assert.are.equal(match(ip, _"10.0.0.0", 255), false, "excessive number of bits"); + assert.are.equal(match(ip, _"10.0.0.0", -8), true, "negative number of bits"); + assert.are.equal(match(ip, _"10.0.0.0", -32), true, "negative number of bits"); + assert.are.equal(match(ip, _"10.0.0.0", 0), true, "zero bits"); + assert.are.equal(match(ip, _"10.0.0.0"), false, "no specified number of bits (differing ip)"); + assert.are.equal(match(ip, _"10.20.30.40"), true, "no specified number of bits (same ip)"); + + assert.are.equal(match(_"127.0.0.1", _"127.0.0.1"), true, "simple ip"); + + assert.are.equal(match(_"8.8.8.8", _"8.8.0.0", 16), true); + assert.are.equal(match(_"8.8.4.4", _"8.8.0.0", 16), true); + end); + end); + + describe("#parse_cidr()", function() + it("should work", function() + assert.are.equal(new_ip"0.0.0.0", new_ip"0.0.0.0") + + local function assert_cidr(cidr, ip, bits) + local parsed_ip, parsed_bits = parse_cidr(cidr); + assert.are.equal(new_ip(ip), parsed_ip, cidr.." parsed ip is "..ip); + assert.are.equal(bits, parsed_bits, cidr.." parsed bits is "..tostring(bits)); + end + assert_cidr("0.0.0.0", "0.0.0.0", nil); + assert_cidr("127.0.0.1", "127.0.0.1", nil); + assert_cidr("127.0.0.1/0", "127.0.0.1", 0); + assert_cidr("127.0.0.1/8", "127.0.0.1", 8); + assert_cidr("127.0.0.1/32", "127.0.0.1", 32); + assert_cidr("127.0.0.1/256", "127.0.0.1", 256); + assert_cidr("::/48", "::", 48); + end); + end); + + describe("#new_ip()", function() + it("should work", function() + local v4, v6 = "IPv4", "IPv6"; + local function assert_proto(s, proto) + local ip = new_ip(s); + if proto then + assert.are.equal(ip and ip.proto, proto, "protocol is correct for "..("%q"):format(s)); + else + assert.are.equal(ip, nil, "address is invalid"); + end + end + assert_proto("127.0.0.1", v4); + assert_proto("::1", v6); + assert_proto("", nil); + assert_proto("abc", nil); + assert_proto(" ", nil); + end); + end); + + describe("#commonPrefixLength()", function() + it("should work", function() + local function assert_cpl6(a, b, len, v4) + local ipa, ipb = new_ip(a), new_ip(b); + if v4 then len = len+96; end + assert.are.equal(commonPrefixLength(ipa, ipb), len, "common prefix length of "..a.." and "..b.." is "..len); + assert.are.equal(commonPrefixLength(ipb, ipa), len, "common prefix length of "..b.." and "..a.." is "..len); + end + local function assert_cpl4(a, b, len) + return assert_cpl6(a, b, len, "IPv4"); + end + assert_cpl4("0.0.0.0", "0.0.0.0", 32); + assert_cpl4("255.255.255.255", "0.0.0.0", 0); + assert_cpl4("255.255.255.255", "255.255.0.0", 16); + assert_cpl4("255.255.255.255", "255.255.255.255", 32); + assert_cpl4("255.255.255.255", "255.255.255.255", 32); + + assert_cpl6("::1", "::1", 128); + assert_cpl6("abcd::1", "abcd::1", 128); + assert_cpl6("abcd::abcd", "abcd::", 112); + assert_cpl6("abcd::abcd", "abcd::abcd:abcd", 96); + end); + end); +end); |