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test(subagent-sdk): make the partial-output test deterministic

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The aborted-mid-stream case raced the abort against the child's chunk
delivery across two pipes and lost under full-suite load. Replace it with a
same-pipe ordering probe: the fake streams one text-delta chunk and then
answers the prompt with a malformed (non-accepted) result, so frame order
guarantees the chunk precedes the failure — the accumulated partial text
must survive into the error result. Same code path (collectOutput without a
complete assistant/message), no timing window.
This commit is contained in:
Tianyi Cui
2026-07-27 05:26:38 +08:00
parent 441110f6da
commit 1ad0f26b92
2 changed files with 18 additions and 27 deletions
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12
packages/sdk/sdk-client/tests/fake-runtime.ts
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@@ -21,9 +21,9 @@
* arrives, then poll for the GO file before answering (deterministic
* cancel-during-handshake window).
* - `FAKE_HANG_PROMPT`: never answer `session/prompt` (for timeout/dispose tests).
* - `FAKE_STREAM_THEN_HANG`: stream a text chunk for the prompt, then never
* finish the turn or answer (partial-output cancel probe). Touches
* `FAKE_STREAM_READY` after the chunk when set.
* - `FAKE_STREAM_THEN_MALFORMED`: stream a text chunk for the prompt, then
* answer `{}` (no accepted) — same-pipe ordering makes the chunk arrive
* before the protocol failure (partial-output retention probe).
* - `FAKE_IGNORE_EOF` + `FAKE_SIGTERM_FILE`: keep running after stdin EOF; touch the file on SIGTERM (ladder probe).
* - `FAKE_TRAP_SIGTERM`: with `FAKE_IGNORE_EOF`, survive SIGTERM too (SIGKILL-rung probe).
* - `FAKE_EXIT_BEFORE_INIT`: exit 3 immediately (spawn-then-die probe).
@@ -151,10 +151,10 @@ reader.on('line', (line) => {
respond({ serverInfo: { name: 'deepseek-harness-sdk-runtime', version: '0.0.1' } })
return
case 'session/prompt': {
if (env.FAKE_STREAM_THEN_HANG !== undefined) {
if (env.FAKE_STREAM_THEN_MALFORMED !== undefined) {
const sessionId = sessionIdOf(frame.params)
event(sessionId, 'assistant/chunk', { turn: 0, step: 0, chunk: { type: 'text-delta', index: 0, text: 'streamed then hung' } })
if (env.FAKE_STREAM_READY !== undefined) writeFileSync(env.FAKE_STREAM_READY, 'streamed\n')
event(sessionId, 'assistant/chunk', { turn: 0, step: 0, chunk: { type: 'text-delta', index: 0, text: 'streamed then cut short' } })
respond({})
return
}
if (env.FAKE_HANG_PROMPT !== undefined) return