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import { describe, it, expect, beforeAll, afterAll } from "bun:test";
const port = 3009;
const url = `http://localhost:${port}`;
let server;
describe("Headers", async () => {
// Start up a single server and reuse it between tests
beforeAll(() => {
server = Bun.serve({
fetch(req) {
const hdr = req.headers.get("x-test");
return new Response(hdr);
},
port: port,
});
});
afterAll(() => {
server.stop();
});
it("Headers should work", async () => {
expect(await fetchContent({ "x-test": "header 1" })).toBe("header 1");
});
it("Header names must be valid", async () => {
expect(() => fetch(url, { headers: { "a\tb:c": "foo" } })).toThrow("Invalid header name: 'a\tb:c'");
expect(() => fetch(url, { headers: { "❤️": "foo" } })).toThrow("Invalid header name: '❤️'");
});
it("Header values must be valid", async () => {
expect(() => fetch(url, { headers: { "x-test": "\0" } })).toThrow("Header 'x-test' has invalid value: '\0'");
expect(() => fetch(url, { headers: { "x-test": "❤️" } })).toThrow("Header 'x-test' has invalid value: '❤️'");
});
it("repro 1602", async () => {
const origString = "😂1234".slice(3);
var encoder = new TextEncoder();
var decoder = new TextDecoder();
const roundTripString = decoder.decode(encoder.encode(origString));
expect(roundTripString).toBe(origString);
// This one will pass
expect(await fetchContent({ "x-test": roundTripString })).toBe(roundTripString);
// This would hang
expect(await fetchContent({ "x-test": origString })).toBe(origString);
});
describe("toJSON()", () => {
it("should provide lowercase header names", () => {
const headers1 = new Headers({ "X-Test": "yep", "Content-Type": "application/json" });
expect(headers1.toJSON()).toEqual({ "x-test": "yep", "content-type": "application/json" });
const headers2 = new Headers();
headers2.append("X-Test", "yep");
headers2.append("Content-Type", "application/json");
expect(headers2.toJSON()).toEqual({ "x-test": "yep", "content-type": "application/json" });
});
});
});
async function fetchContent(headers) {
const res = await fetch(url, { headers: headers }, { verbose: true });
return await res.text();
}
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