chore: import upstream snapshot with attribution

sdks/code-interpreter/javascript/tests/defaultAdapterFactory.headers.test.mjs

@@ -0,0 +1,66 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { DefaultAdapterFactory } from "../dist/index.js";
+
+test("DefaultAdapterFactory merges sandbox and endpoint headers for code requests", async () => {
+  const recorded = [];
+  const fetchImpl = async (input, init = {}) => {
+    const request = input instanceof Request ? input : new Request(input, init);
+    const url = new URL(request.url);
+    const headers = Object.fromEntries(request.headers.entries());
+    recorded.push({
+      url: request.url,
+      method: request.method,
+      headers,
+    });
+
+    if (url.pathname === "/code/context") {
+      return new Response(JSON.stringify({ id: "ctx-1", language: "python" }), {
+        status: 200,
+        headers: { "content-type": "application/json" },
+      });
+    }
+
+    return new Response(
+      [
+        JSON.stringify({ type: "stdout", text: "hello", timestamp: 1 }),
+        JSON.stringify({ type: "execution_complete", execution_time: 2, timestamp: 2 }),
+      ].join("\n"),
+      {
+        status: 200,
+        headers: { "content-type": "text/event-stream" },
+      }
+    );
+  };
+
+  const sandbox = {
+    connectionConfig: {
+      headers: { "x-global": "global" },
+      fetch: fetchImpl,
+      sseFetch: fetchImpl,
+    },
+  };
+
+  const factory = new DefaultAdapterFactory();
+  const codes = factory.createCodes({
+    sandbox,
+    execdBaseUrl: "http://sandbox.internal:3456",
+    endpointHeaders: { "x-endpoint": "endpoint" },
+  });
+
+  const context = await codes.createContext("python");
+  assert.equal(context.id, "ctx-1");
+
+  const execution = await codes.run("print('hello')");
+  assert.equal(execution.logs.stdout[0]?.text, "hello");
+
+  assert.equal(recorded.length, 2);
+  assert.equal(recorded[0].url, "http://sandbox.internal:3456/code/context");
+  assert.equal(recorded[0].headers["x-global"], "global");
+  assert.equal(recorded[0].headers["x-endpoint"], "endpoint");
+  assert.equal(recorded[1].url, "http://sandbox.internal:3456/code");
+  assert.equal(recorded[1].headers["x-global"], "global");
+  assert.equal(recorded[1].headers["x-endpoint"], "endpoint");
+  assert.equal(recorded[1].headers.accept, "text/event-stream");
+});