import { describe, expect, it } from "@suaveplan/testing/runner";
import { UNIVERSAL_TAGS } from "../asn1/asn1.types.js";
import { encodeAsn1, makePrimitive } from "../asn1/encoder.js";
import { X509Error } from "../errors/error-codes.js";
import { decodeSubjectKeyIdentifier } from "./subject-key-id.js";

describe("decodeSubjectKeyIdentifier", () => {
    it("decodes SKI keyIdentifier byte-identically", { timeout: 5000 }, () => {
        const ki = new Uint8Array(20).fill(0x5a);
        const der = encodeAsn1(
            makePrimitive("universal", UNIVERSAL_TAGS.OCTET_STRING, ki)
        );
        const ski = decodeSubjectKeyIdentifier(der);
        expect(Array.from(ski.keyIdentifier)).toEqual(Array.from(ki));
    });

    it("rejects non-OCTET-STRING input", { timeout: 5000 }, () => {
        expect(() =>
            decodeSubjectKeyIdentifier(new Uint8Array([0x02, 0x01, 0x00]))
        ).toThrowError(X509Error);
    });
});