Initial commit

Signed-off-by: Ilan Bigio <ilan@openai.com>

codex-cli/tests/api-key.test.ts

@@ -0,0 +1,35 @@
+import { describe, it, expect, beforeEach, afterEach } from "vitest";
+
+// We import the module *lazily* inside each test so that we can control the
+// OPENAI_API_KEY env var independently per test case. Node's module cache
+// would otherwise capture the value present during the first import.
+
+const ORIGINAL_ENV_KEY = process.env["OPENAI_API_KEY"];
+
+beforeEach(() => {
+  delete process.env["OPENAI_API_KEY"];
+});
+
+afterEach(() => {
+  if (ORIGINAL_ENV_KEY !== undefined) {
+    process.env["OPENAI_API_KEY"] = ORIGINAL_ENV_KEY;
+  } else {
+    delete process.env["OPENAI_API_KEY"];
+  }
+});
+
+describe("config.setApiKey", () => {
+  it("overrides the exported OPENAI_API_KEY at runtime", async () => {
+    const { setApiKey, OPENAI_API_KEY } = await import(
+      "../src/utils/config.js"
+    );
+
+    expect(OPENAI_API_KEY).toBe("");
+
+    setApiKey("my‑key");
+
+    const { OPENAI_API_KEY: liveRef } = await import("../src/utils/config.js");
+
+    expect(liveRef).toBe("my‑key");
+  });
+});