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const { PacketType, Decoder, Encoder } = require("..");
const expect = require("expect.js");
const helpers = require("./helpers.js");
describe("parser", () => {
it("exposes types", () => {
expect(PacketType.CONNECT).to.be.a("number");
expect(PacketType.DISCONNECT).to.be.a("number");
expect(PacketType.EVENT).to.be.a("number");
expect(PacketType.ACK).to.be.a("number");
expect(PacketType.CONNECT_ERROR).to.be.a("number");
expect(PacketType.BINARY_EVENT).to.be.a("number");
expect(PacketType.BINARY_ACK).to.be.a("number");
});
it("encodes connection", (done) => {
helpers.test(
{
type: PacketType.CONNECT,
nsp: "/woot",
data: {
token: "123",
},
},
done
);
});
it("encodes disconnection", (done) => {
helpers.test(
{
type: PacketType.DISCONNECT,
nsp: "/woot",
},
done
);
});
it("encodes an event", (done) => {
helpers.test(
{
type: PacketType.EVENT,
data: ["a", 1, {}],
nsp: "/",
},
done
);
});
it("encodes an event (with an integer as event name)", (done) => {
helpers.test(
{
type: PacketType.EVENT,
data: [1, "a", {}],
nsp: "/",
},
done
);
});
it("encodes an event (with ack)", (done) => {
helpers.test(
{
type: PacketType.EVENT,
data: ["a", 1, {}],
id: 1,
nsp: "/test",
},
done
);
});
it("encodes an ack", (done) => {
helpers.test(
{
type: PacketType.ACK,
data: ["a", 1, {}],
id: 123,
nsp: "/",
},
done
);
});
it("encodes an connect error", (done) => {
helpers.test(
{
type: PacketType.CONNECT_ERROR,
data: "Unauthorized",
nsp: "/",
},
done
);
});
it("encodes an connect error (with object)", (done) => {
helpers.test(
{
type: PacketType.CONNECT_ERROR,
data: {
message: "Unauthorized",
},
nsp: "/",
},
done
);
});
it("throws an error when encoding circular objects", () => {
const a = {};
a.b = a;
const data = {
type: PacketType.EVENT,
data: a,
id: 1,
nsp: "/",
};
const encoder = new Encoder();
expect(() => encoder.encode(data)).to.throwException();
});
it("decodes a bad binary packet", () => {
try {
const decoder = new Decoder();
decoder.add("5");
} catch (e) {
expect(e.message).to.match(/Illegal/);
}
});
it("throw an error upon parsing error", () => {
const isInvalidPayload = (str) =>
expect(() => new Decoder().add(str)).to.throwException(
/^invalid payload$/
);
isInvalidPayload('442["some","data"');
isInvalidPayload('0/admin,"invalid"');
isInvalidPayload("1/admin,{}");
isInvalidPayload('2/admin,"invalid');
isInvalidPayload("2/admin,{}");
isInvalidPayload('2[{"toString":"foo"}]');
isInvalidPayload('2[true,"foo"]');
isInvalidPayload('2[null,"bar"]');
expect(() => new Decoder().add("999")).to.throwException(
/^unknown packet type 9$/
);
expect(() => new Decoder().add(999)).to.throwException(
/^Unknown type: 999$/
);
});
});
|
