ts-mls/dist/test/codec/padding.test.js

[](https://github.com/LukaJCB/ts-mls/actions/workflows/ci.yml) [](https://badge.fury.io/js/ts-mls) [![Coverage Status](https://co

import { encodePrivateMessageContent, decodePrivateMessageContent, } from "../../src/privateMessage";
import { createRoundtripTest } from "./roundtrip";
describe("PrivateMessageContent roundtrip with padding", () => {
    const roundtrip = (config) => createRoundtripTest(encodePrivateMessageContent(config), decodePrivateMessageContent("application"));
    const content = {
        contentType: "application",
        applicationData: new Uint8Array(),
        auth: {
            signature: new Uint8Array(),
            contentType: "application",
        },
    };
    test("roundtrips application with no padding", () => {
        roundtrip({ kind: "alwaysPad", paddingLength: 0 })(content);
    });
    test("roundtrips application with 64 bytes of padding", () => {
        roundtrip({ kind: "alwaysPad", paddingLength: 64 })(content);
    });
    test("roundtrips application with 256 bytes of padding", () => {
        roundtrip({ kind: "alwaysPad", paddingLength: 256 })(content);
    });
    test("roundtrips application with 5000 bytes of padding", () => {
        roundtrip({ kind: "alwaysPad", paddingLength: 5000 })(content);
    });
    test("roundtrips application with 80000 bytes of padding", () => {
        roundtrip({ kind: "alwaysPad", paddingLength: 80000 })(content);
    });
    test("roundtrips application with padding until 4000 bytes", () => {
        const config = { kind: "padUntilLength", padUntilLength: 4000 };
        roundtrip(config)(content);
        expect(encodePrivateMessageContent(config)(content).length).toBe(4000);
    });
    test("fails to decode message with non-zero padding", () => {
        const encoded = encodePrivateMessageContent({ kind: "alwaysPad", paddingLength: 2048 })(content);
        expect(decodePrivateMessageContent("application")(encoded, 0)).toBeDefined();
        encoded[encoded.length - 1024] = 1;
        expect(decodePrivateMessageContent("application")(encoded, 0)).toBeUndefined();
    });
});
//# sourceMappingURL=padding.test.js.map