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Maurice
724c88c201
A mechanical prettier --write over server/src, server/tests, server/scripts and shared/src with the workspaces' .prettierrc; nothing but layout and import order changes, and every file keeps the same set of imports. shared is formatted throughout and its format baseline is empty. The server baseline keeps the 35 files that Prettier would grow past their lint:size limit (they need a split first, which is not a formatting change), and the generated entity files stay as their generator writes them.
56 lines
2.0 KiB
TypeScript
56 lines
2.0 KiB
TypeScript
import { expandIpv6, embeddedTransitionIpv4 } from '../../../src/utils/ipv6';
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import { describe, it, expect } from 'vitest';
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describe('expandIpv6', () => {
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it.each([
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['::1', [0, 0, 0, 0, 0, 0, 0, 1]],
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['2606:4700::1111', [0x2606, 0x4700, 0, 0, 0, 0, 0, 0x1111]],
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['fe80::1', [0xfe80, 0, 0, 0, 0, 0, 0, 1]],
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// Dotted-quad tail (IPv4-mapped) is normalised into hextets.
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['::ffff:169.254.169.254', [0, 0, 0, 0, 0, 0xffff, 0xa9fe, 0xa9fe]],
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['64:ff9b::a9fe:a9fe', [0x0064, 0xff9b, 0, 0, 0, 0, 0xa9fe, 0xa9fe]],
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])('expands %s', (ip, expected) => {
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expect(expandIpv6(ip)).toEqual(expected);
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});
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it.each(['8.8.8.8', 'not-an-ip', '', '::ffff:999.1.1.1', '1::2::3'])(
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'returns null for non-IPv6 / invalid %s',
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(ip) => {
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expect(expandIpv6(ip)).toBeNull();
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},
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);
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});
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describe('embeddedTransitionIpv4', () => {
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it.each([
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// NAT64 well-known 64:ff9b::/96
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['64:ff9b::a9fe:a9fe', '169.254.169.254'],
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['64:ff9b::7f00:1', '127.0.0.1'],
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['64:ff9b::a00:1', '10.0.0.1'],
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['64:ff9b::808:808', '8.8.8.8'],
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['[64:ff9b::a9fe:a9fe]', '169.254.169.254'], // bracketed literal
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// 6to4 2002::/16
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['2002:7f00:1::', '127.0.0.1'],
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['2002:a9fe:a9fe::', '169.254.169.254'],
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['2002:808:808::', '8.8.8.8'],
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// Teredo 2001:0000::/32 — client IPv4 is XOR 0xffffffff of the last 32 bits.
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['2001::5601:5601', '169.254.169.254'],
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])('extracts %s -> %s', (ip, embedded) => {
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expect(embeddedTransitionIpv4(ip)).toBe(embedded);
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});
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it.each([
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'8.8.8.8', // plain IPv4 — no colon
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'169.254.169.254',
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'::ffff:169.254.169.254', // IPv4-mapped, handled by other checks not this one
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'::a9fe:a9fe', // IPv4-compatible
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'2606:4700::1111', // ordinary public IPv6
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'fe80::1', // link-local, not a transition prefix
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'64:ff9b:1::a9fe:a9fe', // NAT64 local-use /48 prefix — deliberately NOT matched
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'garbage',
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])('returns null for non-transition %s', (ip) => {
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expect(embeddedTransitionIpv4(ip)).toBeNull();
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});
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});
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