1 files changed, 58 insertions, 0 deletions
diff --git a/test/bun.js/fetch_headers.test.js b/test/bun.js/fetch_headers.test.js
new file mode 100644
index 000000000..7f8fab188
--- /dev/null
+++ b/test/bun.js/fetch_headers.test.js
@@ -0,0 +1,58 @@
+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);
+  });
+});
+
+async function fetchContent(headers) {
+  const res = await fetch(
+    url,
+    { headers: headers },
+    { verbose: true }
+  );
+  return await res.text();
+}