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feat(simulation): control arbitrary tool lifecycles (#37816)

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Kit Langton 2026-07-19 17:40:30 -04:00 • committed by GitHub
commit 6d32bc9cb0
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13 changed files with 1567 additions and 80 deletions
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29
packages/simulation/test/openai.test.ts
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@ -33,6 +33,35 @@ test("encodes every simulated provider event as OpenAI SSE", async () => {
)
})
test("encodes provider-neutral partial tool input as OpenAI deltas", async () => {
const provider: SimulatedProvider.Interface = {
stream: () =>
Stream.make(
{ type: "toolInputStart", index: 0, id: "call_lookup", name: "lookup" },
{ type: "toolInputDelta", index: 0, text: '{"query":' },
{ type: "toolInputDelta", index: 0, text: '"OpenCode"}' },
{ type: "finish", reason: "tool-calls" },
),
}
const url = new URL(DEFAULT_BASE_URL + PATH)
const request = HttpClientRequest.post(url).pipe(HttpClientRequest.bodyJsonUnsafe({ model: "gpt-5" }))
const matched = SimulationOpenAI.route(provider).match(request, url)
if (!matched) throw new Error("The simulated OpenAI route did not match")
const body = await Effect.runPromise(matched.pipe(Effect.flatMap((response) => response.text)))
expect(body).toBe(
[
'data: {"choices":[{"delta":{"tool_calls":[{"index":0,"id":"call_lookup","function":{"name":"lookup","arguments":""}}]}}]}',
'data: {"choices":[{"delta":{"tool_calls":[{"index":0,"function":{"arguments":"{\\"query\\":"}}]}}]}',
'data: {"choices":[{"delta":{"tool_calls":[{"index":0,"function":{"arguments":"\\"OpenCode\\"}"}}]}}]}',
'data: {"choices":[{"delta":{},"finish_reason":"tool_calls"}]}',
"data: [DONE]",
"",
].join("\n\n"),
)
})
test("rejects malformed intercepted OpenAI JSON as an HTTP client error", async () => {
const provider: SimulatedProvider.Interface = { stream: () => Stream.empty }
const url = new URL(DEFAULT_BASE_URL + PATH)