File

spec/util_rfc6724_spec.lua @ 9450:b890ceb1c24f

util.poll: Increase max epoll events per call This makes the struct roughly the same size in both epoll and select mode (64bit). There doesn’t seem to be much guidance on an appropriate size, it does not seem to matter too much since if there are more events they will simply show up in the next epoll_wait call. The number of exactly concurrent events should be fairly low most of the time anyways.
author Kim Alvefur <zash@zash.se>
date Mon, 08 Oct 2018 15:33:15 +0200
parent 8236:4878e4159e12
line wrap: on
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local rfc6724 = require "util.rfc6724";
local new_ip = require"util.ip".new_ip;

describe("util.rfc6724", function()
	describe("#source()", function()
		it("should work", function()
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:3::1", "IPv6"), new_ip("fe80::1", "IPv6")}).addr,
				"2001:db8:3::1",
				"prefer appropriate scope");
			assert.are.equal(rfc6724.source(new_ip("ff05::1", "IPv6"),
					{new_ip("2001:db8:3::1", "IPv6"), new_ip("fe80::1", "IPv6")}).addr,
				"2001:db8:3::1",
				"prefer appropriate scope");
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:1::1", "IPv6"), new_ip("2001:db8:2::1", "IPv6")}).addr,
				"2001:db8:1::1",
				"prefer same address"); -- "2001:db8:1::1" should be marked "deprecated" here, we don't handle that right now
			assert.are.equal(rfc6724.source(new_ip("fe80::1", "IPv6"),
					{new_ip("fe80::2", "IPv6"), new_ip("2001:db8:1::1", "IPv6")}).addr,
				"fe80::2",
				"prefer appropriate scope"); -- "fe80::2" should be marked "deprecated" here, we don't handle that right now
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3::2", "IPv6")}).addr,
				"2001:db8:1::2",
				"longest matching prefix");
		--[[ "2001:db8:1::2" should be a care-of address and "2001:db8:3::2" a home address, we can't handle this and would fail
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::1", "IPv6"),
					{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3::2", "IPv6")}).addr,
				"2001:db8:3::2",
				"prefer home address");
		]]
			assert.are.equal(rfc6724.source(new_ip("2002:c633:6401::1", "IPv6"),
					{new_ip("2002:c633:6401::d5e3:7953:13eb:22e8", "IPv6"), new_ip("2001:db8:1::2", "IPv6")}).addr,
				"2002:c633:6401::d5e3:7953:13eb:22e8",
				"prefer matching label"); -- "2002:c633:6401::d5e3:7953:13eb:22e8" should be marked "temporary" here, we don't handle that right now
			assert.are.equal(rfc6724.source(new_ip("2001:db8:1::d5e3:0:0:1", "IPv6"),
					{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:1::d5e3:7953:13eb:22e8", "IPv6")}).addr,
				"2001:db8:1::d5e3:7953:13eb:22e8",
				"prefer temporary address") -- "2001:db8:1::2" should be marked "public" and "2001:db8:1::d5e3:7953:13eb:22e8" should be marked "temporary" here, we don't handle that right now
		end);
	end);
	describe("#destination()", function()
		it("should work", function()
			local order;
			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("198.51.100.121", "IPv4")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::1", "IPv6"), new_ip("169.254.13.78", "IPv4")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer matching scope");
			assert.are.equal(order[2].addr, "198.51.100.121", "prefer matching scope");

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("198.51.100.121", "IPv4")},
				{new_ip("fe80::1", "IPv6"), new_ip("198.51.100.117", "IPv4")})
			assert.are.equal(order[1].addr, "198.51.100.121", "prefer matching scope");
			assert.are.equal(order[2].addr, "2001:db8:1::1", "prefer matching scope");

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("10.1.2.3", "IPv4")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::1", "IPv6"), new_ip("10.1.2.4", "IPv4")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer higher precedence");
			assert.are.equal(order[2].addr, "10.1.2.3", "prefer higher precedence");

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("fe80::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "fe80::1", "prefer smaller scope");
			assert.are.equal(order[2].addr, "2001:db8:1::1", "prefer smaller scope");

		--[[ "2001:db8:1::2" and "fe80::2" should be marked "care-of address", while "2001:db8:3::1" should be marked "home address", we can't currently handle this and would fail the test
			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("fe80::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3::1", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer home address");
			assert.are.equal(order[2].addr, "fe80::1", "prefer home address");
		]]

		--[[ "fe80::2" should be marked "deprecated", we can't currently handle this and would fail the test
			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("fe80::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "avoid deprecated addresses");
			assert.are.equal(order[2].addr, "fe80::1", "avoid deprecated addresses");
		]]

			order = rfc6724.destination({new_ip("2001:db8:1::1", "IPv6"), new_ip("2001:db8:3ffe::1", "IPv6")},
				{new_ip("2001:db8:1::2", "IPv6"), new_ip("2001:db8:3f44::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "longest matching prefix");
			assert.are.equal(order[2].addr, "2001:db8:3ffe::1", "longest matching prefix");

			order = rfc6724.destination({new_ip("2002:c633:6401::1", "IPv6"), new_ip("2001:db8:1::1", "IPv6")},
				{new_ip("2002:c633:6401::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2002:c633:6401::1", "prefer matching label");
			assert.are.equal(order[2].addr, "2001:db8:1::1", "prefer matching label");

			order = rfc6724.destination({new_ip("2002:c633:6401::1", "IPv6"), new_ip("2001:db8:1::1", "IPv6")},
				{new_ip("2002:c633:6401::2", "IPv6"), new_ip("2001:db8:1::2", "IPv6"), new_ip("fe80::2", "IPv6")})
			assert.are.equal(order[1].addr, "2001:db8:1::1", "prefer higher precedence");
			assert.are.equal(order[2].addr, "2002:c633:6401::1", "prefer higher precedence");
		end);
	end);
end);