diff --git a/extensions/fireworks/index.test.ts b/extensions/fireworks/index.test.ts
index 920fd69a587..52e655f8442 100644
--- a/extensions/fireworks/index.test.ts
+++ b/extensions/fireworks/index.test.ts
@@ -48,8 +48,12 @@ describe("fireworks provider plugin", () => {
     expect(provider.aliases).toEqual(["fireworks-ai"]);
     expect(provider.envVars).toEqual(["FIREWORKS_API_KEY"]);
     expect(provider.auth).toHaveLength(1);
-    expect(resolved?.provider.id).toBe("fireworks");
-    expect(resolved?.method.id).toBe("api-key");
+    expect(resolved).toBeDefined();
+    if (!resolved) {
+      throw new Error("expected Fireworks api-key auth choice");
+    }
+    expect(resolved.provider.id).toBe("fireworks");
+    expect(resolved.method.id).toBe("api-key");
   });
 
   it("builds the Fireworks catalog", async () => {
@@ -58,17 +62,22 @@ describe("fireworks provider plugin", () => {
 
     expect(catalogProvider.api).toBe("openai-completions");
     expect(catalogProvider.baseUrl).toBe(FIREWORKS_BASE_URL);
-    expect(catalogProvider.models?.map((model) => model.id)).toEqual([
+    const models = catalogProvider.models;
+    expect(models).toBeDefined();
+    if (!models) {
+      throw new Error("expected Fireworks catalog models");
+    }
+    expect(models.map((model) => model.id)).toEqual([
       FIREWORKS_K2_6_MODEL_ID,
       FIREWORKS_DEFAULT_MODEL_ID,
     ]);
-    expect(catalogProvider.models?.[0]).toMatchObject({
+    expect(models[0]).toMatchObject({
       reasoning: false,
       input: ["text", "image"],
       contextWindow: FIREWORKS_K2_6_CONTEXT_WINDOW,
       maxTokens: FIREWORKS_K2_6_MAX_TOKENS,
     });
-    expect(catalogProvider.models?.[1]).toMatchObject({
+    expect(models[1]).toMatchObject({
       reasoning: false,
       input: ["text", "image"],
       contextWindow: FIREWORKS_DEFAULT_CONTEXT_WINDOW,