openai-codex: bridge OAuth profiles into pi auth.json for model discovery (#15184)

src/agents/pi-auth-json.test.ts

@@ -0,0 +1,42 @@
+import fs from "node:fs/promises";
+import os from "node:os";
+import path from "node:path";
+import { describe, expect, it } from "vitest";
+import { saveAuthProfileStore } from "./auth-profiles.js";
+import { ensurePiAuthJsonFromAuthProfiles } from "./pi-auth-json.js";
+
+describe("ensurePiAuthJsonFromAuthProfiles", () => {
+  it("writes openai-codex oauth credentials into auth.json for pi-coding-agent discovery", async () => {
+    const agentDir = await fs.mkdtemp(path.join(os.tmpdir(), "openclaw-agent-"));
+
+    saveAuthProfileStore(
+      {
+        version: 1,
+        profiles: {
+          "openai-codex:default": {
+            type: "oauth",
+            provider: "openai-codex",
+            access: "access-token",
+            refresh: "refresh-token",
+            expires: Date.now() + 60_000,
+          },
+        },
+      },
+      agentDir,
+    );
+
+    const first = await ensurePiAuthJsonFromAuthProfiles(agentDir);
+    expect(first.wrote).toBe(true);
+
+    const authPath = path.join(agentDir, "auth.json");
+    const auth = JSON.parse(await fs.readFile(authPath, "utf8")) as Record<string, unknown>;
+    expect(auth["openai-codex"]).toMatchObject({
+      type: "oauth",
+      access: "access-token",
+      refresh: "refresh-token",
+    });
+
+    const second = await ensurePiAuthJsonFromAuthProfiles(agentDir);
+    expect(second.wrote).toBe(false);
+  });
+});