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test: tighten shared ip parsing coverage

This commit is contained in:
Peter Steinberger 2026-03-13 21:45:22 +00:00
parent e7863d7fdd
commit 2d7a061161
1 changed files with 9 additions and 0 deletions
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9
src/shared/net/ip.test.ts
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@ -13,6 +13,7 @@ import {
isRfc1918Ipv4Address,
normalizeIpAddress,
parseCanonicalIpAddress,
parseLooseIpAddress,
} from "./ip.js";
describe("shared ip helpers", () => {
@ -29,6 +30,8 @@ describe("shared ip helpers", () => {
expect(isIpInCidr("10.43.0.59", "10.42.0.0/24")).toBe(false);
expect(isIpInCidr("2001:db8::1234", "2001:db8::/32")).toBe(true);
expect(isIpInCidr("2001:db9::1234", "2001:db8::/32")).toBe(false);
expect(isIpInCidr("::ffff:127.0.0.1", "127.0.0.1")).toBe(true);
expect(isIpInCidr("127.0.0.1", "::ffff:127.0.0.2")).toBe(false);
});
it("extracts embedded IPv4 for transition prefixes", () => {
@ -66,6 +69,12 @@ describe("shared ip helpers", () => {
expect(isLoopbackIpAddress("198.18.0.1")).toBe(false);
});
it("parses loose legacy IPv4 literals that canonical parsing rejects", () => {
expect(parseCanonicalIpAddress("0177.0.0.1")).toBeUndefined();
expect(parseLooseIpAddress("0177.0.0.1")?.toString()).toBe("127.0.0.1");
expect(parseLooseIpAddress("[::1]")?.toString()).toBe("::1");
});
it("classifies RFC1918 and carrier-grade-nat IPv4 ranges", () => {
expect(isRfc1918Ipv4Address("10.42.0.59")).toBe(true);
expect(isRfc1918Ipv4Address("100.64.0.1")).toBe(false);