enhancement(fetch): Merge parameters from request parameter with the second parameter for fetch, move verbose and proxy options to second parameter, add non-TLS tests for fetch (#1862)

* initial steps for proxy-server

* added http_proxy in fetch, move 3rd argument to 3nd argument options, add some non-TLS proxy tests

* some changes

* use only 1 buffer for url+proxy, merge headers on fetch

* initial steps

* change back to override headers instead of merging in fetch

* fix build response.zig

* fix conditional in merged headers on fetch

* updated with main and make proxy disabled if null is passed

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/test/bun.js/proxy.test.js b/test/bun.js/proxy.test.js
new file mode 100644
index 000000000..32b21f7e8
--- /dev/null
+++ b/test/bun.js/proxy.test.js
@@ -0,0 +1,60 @@
+import { afterAll, beforeAll, describe, expect, it } from "bun:test";
+import { gc } from "./gc";
+
+let proxy, server;
+
+// TODO: Proxy with TLS requests
+
+beforeAll(()=> {
+  proxy = Bun.serve({
+    async fetch(request) {
+      // if is not an proxy connection just drop it
+      if (!request.headers.has("proxy-connection")) {
+        return new Response("Bad Request", { status: 400 });
+      }
+      
+      // simple http proxy
+      if (request.url.startsWith("http://")) {
+        return await fetch(request.url, { method: request.method, body: await request.text() });
+      }
+      
+      // no TLS support here
+      return new Response("Bad Request", { status: 400 });
+  
+    },
+    port: 54321,
+  });  
+  server = Bun.serve({
+    async fetch(request) {
+      if (request.method === "POST"){
+        const text = await request.text();
+        return new Response(text,{ status: 200 });
+      }
+        return new Response("Hello, World",{ status: 200 });
+    },
+    port: 54322,
+  });  
+});
+
+afterAll(() => {
+  server.stop();
+  proxy.stop();
+});
+
+describe("proxy", () => {
+  const requests = [
+    [ new Request("http://localhost:54322"), "fetch() GET with non-TLS Proxy", "http://localhost:54321"],
+    [ new Request("http://localhost:54322", { method: "POST", body: "Hello, World" }), "fetch() POST with non-TLS Proxy", "http://localhost:54321"]
+  ];
+  for (let [ request, name, proxy ] of requests) {
+    gc();
+    it(name, async () => {
+      gc();
+      const response = await fetch(request, { verbose: true, proxy });
+      gc();
+      const text = await response.text();
+      gc();
+      expect(text).toBe("Hello, World");
+    });
+  }
+});
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