diff --git a/test-backoff.ts b/test-backoff.ts
index 887a812..ea26da1 100644
--- a/test-backoff.ts
+++ b/test-backoff.ts
@@ -141,3 +141,13 @@ test("nothing anywhere falls back to localhost", () => {
     "http://localhost:8080",
   ])
 })
+
+test("provider base_url fallback is detected", () => {
+  const snake = [{ id: "llamacpp", name: "llama.cpp", options: { base_url: "http://localhost:9090/v1" } }]
+  assert.deepEqual(resolveServerUrls(undefined, snake, {}), ["http://localhost:9090"])
+})
+
+test("ollama in id excludes even when name mentions llama", () => {
+  const mixed = [{ id: "ollama-bridge", name: "My llama server", options: { baseURL: "http://localhost:11434" } }]
+  assert.deepEqual(resolveServerUrls(undefined, mixed, {}), ["http://localhost:8080"])
+})