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fix(pty): discard pre-write readiness evidence

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This commit is contained in:
Tianyi Cui
2026-07-29 05:20:40 +08:00
parent 587fff9fe7
commit f5f40c7403
8 changed files with 44 additions and 12 deletions
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27
packages/pty/pty-local/tests/session.spec.ts
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@@ -168,6 +168,29 @@ describe('LocalPtySession readiness and output', () => {
expect((await operation.done).waitReason).toBe('stdin_read')
})
it('discards prompt readiness observed during asynchronous pre-write inspection', async () => {
vi.useFakeTimers()
const terminal = new FakeTerminal()
const session = new LocalPtySession(terminal, config())
await initialize(session, terminal)
const inspection = Promise.withResolvers<{ processGroupId: number; inputWaiting: boolean }>()
terminal.inspectForeground = async () => await inspection.promise
const operation = session.startSend({ text: 'long-running-command', submit: true })
let settled = false
void operation.done.then(() => { settled = true })
terminal.emitData('\x1b]133;D;0\x07dsh> ')
inspection.resolve({ processGroupId: 456, inputWaiting: true })
await vi.advanceTimersByTimeAsync(20)
expect(terminal.writes).toEqual(['long-running-command\r'])
expect(settled).toBe(false)
terminal.emitData('\x1b]133;D;0\x07dsh> ')
await vi.advanceTimersByTimeAsync(10)
expect((await operation.done).waitReason).toBe('stdin_read')
})
it('captures prompt MOTD, writes submit explicitly, and settles exact stdin waits', async () => {
vi.useFakeTimers()
const terminal = new FakeTerminal()
@@ -524,6 +547,8 @@ describe('LocalPtySession readiness and output', () => {
const operation = session.startSend({ text: 'run', submit: true })
let settled = false
void operation.done.then(() => { settled = true })
await Promise.resolve()
await Promise.resolve()
inspector.pgid = 789
terminal.emitData('\x1b]133;D;0\x07dsh> ')
await vi.advanceTimersByTimeAsync(50)
@@ -545,6 +570,8 @@ describe('LocalPtySession readiness and output', () => {
const operation = session.startSend({ text: 'run', submit: true })
let settled = false
void operation.done.then(() => { settled = true })
await Promise.resolve()
await Promise.resolve()
inspector.pgid = 789
terminal.emitData('\x1b]133;D;0\x07dsh> ')
// One poll past the silence bound would already have settled inferred_idle.