test(llm): lock event reducer laws (#34423)

packages/llm/test/provider/anthropic-messages.test.ts

@@ -395,6 +395,10 @@ describe("Anthropic Messages route", () => {
       expect(response.events.find((event) => event.type === "reasoning-end")).toMatchObject({
         providerMetadata: { anthropic: { signature: "sig_1" } },
       })
+      expect(response.message.content).toEqual([
+        { type: "text", text: "Hello!" },
+        { type: "reasoning", text: "thinking", providerMetadata: { anthropic: { signature: "sig_1" } } },
+      ])
       expect(response.events.at(-1)).toMatchObject({
         type: "finish",
         reason: "stop",

packages/llm/test/provider/openai-responses.test.ts

@@ -778,6 +778,11 @@ describe("OpenAI Responses route", () => {
         { type: "step-finish", index: 0, reason: "stop" },
         { type: "finish", reason: "stop" },
       ])
+      expect(response.events.filter((event) => event.type === "finish")).toHaveLength(1)
+      expect(response.message.content).toEqual([
+        { type: "reasoning", text: "thinking" },
+        { type: "text", text: "Hello" },
+      ])
     }),
   )