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// SPDX-License-Identifier: MPL-2.0
// (c) Hare authors <https://harelang.org>
use memio;
use net::ip;
use strings;
def HOSTS_FILE = `
127.0.0.1 localhost
# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
10.10.10.10 other.localdomain
10.10.20.20 other.localdomain
`;
@test fn next() void = {
const buf = memio::fixed(strings::toutf8(HOSTS_FILE));
const rd = read(&buf);
defer finish(&rd);
const h = next(&rd) as host;
assert(ip::equal(h.addr, ip::LOCAL_V4));
assert(len(h.names) == 1);
assert(h.names[0] == "localhost");
const h = next(&rd) as host;
assert(ip::equal(h.addr, ip::LOCAL_V6));
assert(len(h.names) == 2);
assert(h.names[0] == "ip6-localhost");
assert(h.names[1] == "ip6-loopback");
const h = next(&rd) as host;
assert(ip::equal(h.addr, [10, 10, 10, 10]: ip::addr4));
assert(len(h.names) == 1);
assert(h.names[0] == "other.localdomain");
const h = next(&rd) as host;
assert(ip::equal(h.addr, [10, 10, 20, 20]: ip::addr4));
assert(len(h.names) == 1);
assert(h.names[0] == "other.localdomain");
const h = next(&rd);
assert(h is done);
const h = next(&rd);
assert(h is done);
};
@test fn errors() void = {
const s = "127";
assert(next(&read(&memio::fixed(strings::toutf8(s))))
is ip::invalid);
const s = "127.0.0.1";
assert(next(&read(&memio::fixed(strings::toutf8(s))))
is invalid);
};
@test fn lookup() void = {
const buf = memio::fixed(strings::toutf8(HOSTS_FILE));
const rd = read(&buf);
defer finish(&rd);
const addrs = _lookup(&rd, "other.localdomain") as []ip::addr;
defer free(addrs);
assert(len(addrs) == 2);
assert(ip::equal(addrs[0], [10, 10, 10, 10]: ip::addr4));
assert(ip::equal(addrs[1], [10, 10, 20, 20]: ip::addr4));
};
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