diff --git a/src/app/api/providers/[id]/test/testUtils.js b/src/app/api/providers/[id]/test/testUtils.js
index 92873ccc..ecdac3e9 100644
--- a/src/app/api/providers/[id]/test/testUtils.js
+++ b/src/app/api/providers/[id]/test/testUtils.js
@@ -100,6 +100,9 @@ const OAUTH_TEST_CONFIG = {
     authPrefix: "Bearer ",
   },
   "codebuddy-cn": { tokenExists: true },
+  // codebuddy-intl uses the same JWT token structure as codebuddy-cn
+  // (access + refresh token pair, ~1-year expiry) — same test strategy (#4232).
+  "codebuddy-intl": { tokenExists: true },
   kimchi: {
     url: KIMCHI_CONFIG.validationUrl || "https://api.cast.ai/v1/llm/openai/supported-providers",
     method: "GET",
diff --git a/tests/unit/codebuddy-intl-test-config.test.js b/tests/unit/codebuddy-intl-test-config.test.js
new file mode 100644
index 00000000..0865e7c0
--- /dev/null
+++ b/tests/unit/codebuddy-intl-test-config.test.js
@@ -0,0 +1,39 @@
+/**
+ * Regression test for #4232
+ *
+ * codebuddy-intl was missing from OAUTH_TEST_CONFIG. The test route handler
+ * returned {"valid":false,"error":"Provider test not supported"} for every
+ * codebuddy-intl account, regardless of token validity.
+ *
+ * Fix: add "codebuddy-intl": { tokenExists: true } alongside "codebuddy-cn".
+ * Both providers use the same JWT token structure (eyJ…, ~1-year expiry,
+ * access + refresh token pair) so the same test strategy applies.
+ */
+
+import { describe, it, expect } from "vitest";
+import fs from "fs";
+import path from "path";
+
+// Read the source file and verify the config entry is present.
+// testUtils.js is a Next.js server file so we inspect the source text
+// rather than importing it (avoids next/server bootstrap requirements).
+
+const src = fs.readFileSync(
+  path.resolve("../src/app/api/providers/[id]/test/testUtils.js"),
+  "utf-8"
+);
+
+describe("OAUTH_TEST_CONFIG — codebuddy-intl (#4232)", () => {
+  it('contains "codebuddy-intl" entry', () => {
+    expect(src).toContain('"codebuddy-intl"');
+  });
+
+  it('"codebuddy-intl" has tokenExists: true', () => {
+    // Match the specific entry: "codebuddy-intl": { tokenExists: true }
+    expect(src).toMatch(/"codebuddy-intl"\s*:\s*\{\s*tokenExists\s*:\s*true\s*\}/);
+  });
+
+  it('"codebuddy-cn" still has tokenExists: true (regression guard)', () => {
+    expect(src).toMatch(/"codebuddy-cn"\s*:\s*\{\s*tokenExists\s*:\s*true\s*\}/);
+  });
+});
\ No newline at end of file