808fde106d
The same AST sweep over specs found fixtures maintained in parallel across suites that have no reason to know about each other. Twenty-one specs each mounted useMessageStream themselves and ten of the harnesses were byte-identical; twenty now take renderMessageStream, with overrides for the seams that genuinely vary. The SessionInfo builder was spelled out field-by-field in seven specs, so a new backend field broke seven files instead of one. Twenty specs carried their own inert ResizeObserver and eleven repeated the animation-frame, CSS.escape, scrollTo and WAAPI stubs the transcript needs to mount at all — split by scope into src/test/jsdom for what any component might need and the assistant-ui folder's own kit for the transcript. Plus the window-state bridge, deferred, the external-store thread runtime, the manual createRoot harness, and the per-folder caret, env-var, provider and session fixtures. Left alone on purpose: the store suites' makePrimary, where the vi.mock harness around it is the actual duplication and cannot be hoisted out of a hoisted factory; electron's deferred, where reaching into src/ from the main process would invert the layering for eight lines; and the two suites that compose another hook alongside the stream.
17 lines
527 B
TypeScript
17 lines
527 B
TypeScript
/** A promise plus the handle that settles it.
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*
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* For tests that need a call to stay in flight — asserting the pending UI,
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* proving a second call is coalesced or ignored, ordering two resolutions —
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* and then release it on their own schedule. */
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export function deferred<T = void>() {
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let resolve!: (value: PromiseLike<T> | T) => void
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let reject!: (reason?: unknown) => void
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const promise = new Promise<T>((done, fail) => {
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resolve = done
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reject = fail
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})
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return { promise, reject, resolve }
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}
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