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spec/util_ip_spec.lua @ 12983:4533c9b906b0
util.format: Tweak serialization of %q formatted entries
Improves serialization of function references especially, the built-in
default handling of that in util.serialization is not the most
informative. Now, along with the function metatable from util.startup,
the actual function can be found by filename and line number.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 26 Mar 2023 00:18:05 +0100 |
parent | 12934:c6dffebab2f8 |
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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); describe("#truncate()", function () it("should work for IPv4", function () local ip1 = ip.new_ip("192.168.0.1"); local ip2 = ip.truncate(ip1, 16); assert.truthy(ip.is_ip(ip2)); assert.equal("192.168.0.0", ip2.normal); assert.equal("192.168.0.1", ip1.normal); -- original unmodified end); it("should work for IPv6", function () local ip1 = ip.new_ip("2001:db8::ff00:42:8329"); local ip2 = ip.truncate(ip1, 24); assert.truthy(ip.is_ip(ip2)); assert.equal("2001:d00::", ip2.normal); assert.equal("2001:db8::ff00:42:8329", ip1.normal); -- original unmodified end); it("accepts a string", function () assert.equal("127.0.0.0", ip.truncate("127.0.0.1", 8).normal); end); end); end);