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import { SessionId } from '@deepseek-ai/dsh-session'
import { SessionSearchCursor, type SessionQueryErrorCode } from '@deepseek-ai/dsh-session-query'
import {
buildEventWhere,
buildSessionWhere,
FTS_HIGHLIGHT_END,
FTS_HIGHLIGHT_START,
makeSnippet,
normalizeEventRequest,
normalizeSessionRequest,
quoteFtsData,
requestFingerprint,
SQLITE_FTS5_OUTER_PREDICATE_LIMIT,
SQLITE_MAX_PAGE_LIMIT,
type NormalizedEventRequest,
type NormalizedSessionRequest,
} from '../src/query.ts'
const limits = { defaultLimit: 2, maxLimit: 3 }
function expectCode(code: SessionQueryErrorCode): Error {
return expect.objectContaining({ code }) as Error
}
describe('SQLite search request normalization', () => {
it('normalizes both scopes, defaults arrays and limits, and preserves cursors', () => {
expect(normalizeSessionRequest({ query: ' alpha\n beta ' }, limits)).toEqual({
query: 'alpha beta',
sessionFilters: [],
eventFilters: [],
limit: 2,
})
expect(normalizeSessionRequest({
query: 'needle',
sessionFilters: [{ kind: 'availability', values: ['live'] }],
eventFilters: [{ kind: 'surface', values: ['current'] }],
limit: 3,
cursor: SessionSearchCursor('next'),
}, limits)).toEqual({
query: 'needle',
sessionFilters: [{ kind: 'availability', values: ['live'] }],
eventFilters: [{ kind: 'surface', values: ['current'] }],
limit: 3,
cursor: SessionSearchCursor('next'),
})
expect(normalizeEventRequest({ sessionId: SessionId('s'), query: 'needle' }, limits)).toEqual({
sessionId: SessionId('s'),
query: 'needle',
filters: [],
limit: 2,
})
expect(normalizeEventRequest({
sessionId: SessionId('s'),
query: 'needle',
filters: [{ kind: 'seq', from: 1 }],
cursor: SessionSearchCursor('next'),
}, limits)).toEqual({
sessionId: SessionId('s'),
query: 'needle',
filters: [{ kind: 'seq', from: 1 }],
limit: 2,
cursor: SessionSearchCursor('next'),
})
})
it('rejects non-text, blank, non-integer, non-positive, and oversized requests', () => {
expect(() => normalizeSessionRequest({ query: 1 as never }, limits))
.toThrow(expectCode('SESSION_QUERY_INVALID_QUERY'))
expect(() => normalizeSessionRequest({ query: ' \n ' }, limits))
.toThrow(expectCode('SESSION_QUERY_INVALID_QUERY'))
expect(() => normalizeSessionRequest({ query: 'bad\0query' }, limits))
.toThrow(expectCode('SESSION_QUERY_INVALID_QUERY'))
expect(() => normalizeEventRequest({ sessionId: 1 as never, query: 'x' }, limits))
.toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
expect(() => normalizeEventRequest({
sessionId: SessionId('s'),
query: 'x',
cursor: 1 as never,
}, limits)).toThrow(expectCode('SESSION_QUERY_INVALID_CURSOR'))
expect(() => normalizeSessionRequest({
query: 'x',
eventFilters: [{ kind: 'text', text: 'x' } as never],
}, limits)).toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
expect(() => normalizeSessionRequest({
query: 'x',
eventFilters: [{} as never],
}, limits)).toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
for (const limit of [1.5, 0, 4]) {
expect(() => normalizeEventRequest({ sessionId: SessionId('s'), query: 'x', limit }, limits))
.toThrow(expectCode('SESSION_QUERY_INVALID_LIMIT'))
}
expect(() => normalizeEventRequest({
sessionId: SessionId('s'),
query: 'x',
limit: SQLITE_MAX_PAGE_LIMIT + 1,
}, { defaultLimit: 1, maxLimit: SQLITE_MAX_PAGE_LIMIT + 1 }))
.toThrow(expectCode('SESSION_QUERY_INVALID_LIMIT'))
})
it('materializes owned filter values during normalization', () => {
const values = ['live'] as Array<'live' | 'persisted'>
const filter = { kind: 'availability' as const, values }
const request = { query: 'needle', sessionFilters: [filter] }
const normalized = normalizeSessionRequest(request, limits)
values[0] = 'persisted'
request.sessionFilters.push({ kind: 'availability', values: ['persisted'] })
expect(normalized.sessionFilters).toEqual([{ kind: 'availability', values: ['live'] }])
})
})
describe('SQLite search predicate compilation', () => {
it('compiles all logical-session clauses including empty and nullable values', () => {
expect(buildSessionWhere([])).toEqual({ sql: '', params: [], predicateCount: 0 })
expect(buildSessionWhere([{ kind: 'id', values: [] }])).toEqual({
sql: '0',
params: [],
predicateCount: 1,
})
expect(buildSessionWhere([{ kind: 'id', values: [SessionId('a'), SessionId('b')] }])).toEqual({
sql: 'session_id IN (?, ?)',
params: [SessionId('a'), SessionId('b')],
predicateCount: 1,
})
expect(buildSessionWhere([{ kind: 'cwd', values: [] }])).toEqual({
sql: '0',
params: [],
predicateCount: 1,
})
expect(buildSessionWhere([{ kind: 'cwd', values: [null] }])).toEqual({
sql: '(cwd IS NULL)',
params: [],
predicateCount: 1,
})
expect(buildSessionWhere([{ kind: 'cwd', values: ['/a'] }])).toEqual({
sql: '(cwd IN (?))',
params: ['/a'],
predicateCount: 1,
})
expect(buildSessionWhere([{ kind: 'parent', values: [SessionId('p'), null] }])).toEqual({
sql: '(parent_session IN (?) OR parent_session IS NULL)',
params: [SessionId('p')],
predicateCount: 1,
})
expect(buildSessionWhere([
{ kind: 'created-at', from: 1, to: 2 },
{ kind: 'availability', values: [] },
{ kind: 'availability', values: ['live', 'live'] },
{ kind: 'availability', values: ['live', 'persisted'] },
])).toEqual({
sql: 'CAST(created_at AS INTEGER) >= ? AND CAST(created_at AS INTEGER) <= ? AND 0 AND live = 1',
params: [1, 2],
predicateCount: 4,
})
expect(buildSessionWhere([{ kind: 'created-at' }])).toEqual({
sql: '',
params: [],
predicateCount: 0,
})
})
it('compiles every event clause and empty lists', () => {
expect(buildEventWhere([
{ kind: 'seq', from: 1 },
{ kind: 'time', to: 9 },
{ kind: 'type', values: ['user/message'] },
{ kind: 'surface', values: ['current', 'log-only'] },
])).toEqual({
sql: 'CAST(seq AS INTEGER) >= ? AND CAST(time AS INTEGER) <= ? AND type IN (?) AND surface IN (?, ?)',
params: [1, 9, 'user/message', 'current', 'log-only'],
predicateCount: 4,
})
expect(buildEventWhere([
{ kind: 'type', values: [] },
{ kind: 'surface', values: [] },
])).toEqual({ sql: '0 AND 0', params: [], predicateCount: 2 })
})
it('rejects predicate builders above the supported FTS5 outer budget', () => {
const filters = Array.from(
{ length: SQLITE_FTS5_OUTER_PREDICATE_LIMIT },
() => ({ kind: 'id' as const, values: [SessionId('safe')] }),
)
expect(buildSessionWhere(filters).predicateCount).toBe(SQLITE_FTS5_OUTER_PREDICATE_LIMIT)
expect(() => buildSessionWhere([
...filters,
{ kind: 'id', values: [SessionId('over')] },
])).toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
})
it('rejects runtime-unknown filter discriminants in both SQL builders', () => {
expect(() => buildSessionWhere([{ kind: 'future' } as never]))
.toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
expect(() => buildEventWhere([{ kind: 'future' } as never]))
.toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
expect(() => buildSessionWhere([{ kind: 'availability', values: ['future'] } as never]))
.toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
expect(() => buildSessionWhere([{} as never]))
.toThrow(expectCode('SESSION_QUERY_INVALID_FILTER'))
})
})
describe('SQLite query identity and presentation', () => {
it('quotes all caller MATCH syntax as data', () => {
expect(quoteFtsData('say "needle" OR *')).toBe('"say ""needle"" OR *"')
})
it('canonicalizes request and filter ordering in both scopes', () => {
const sessionA: NormalizedSessionRequest = {
query: 'needle',
limit: 2,
sessionFilters: [
{ kind: 'cwd', values: ['/b', '/a'] },
{ kind: 'parent', values: [null, SessionId('p')] },
{ kind: 'id', values: [SessionId('same'), SessionId('same')] },
{ kind: 'created-at', from: 1 },
],
eventFilters: [{ kind: 'time', to: 9 }],
}
const sessionB: NormalizedSessionRequest = {
query: 'needle',
limit: 2,
sessionFilters: [
{ kind: 'created-at', from: 1 },
{ kind: 'id', values: [SessionId('same'), SessionId('same')] },
{ kind: 'parent', values: [SessionId('p'), null] },
{ kind: 'cwd', values: ['/a', '/b'] },
],
eventFilters: [{ kind: 'time', to: 9 }],
}
expect(requestFingerprint(sessionA)).toBe(requestFingerprint(sessionB))
const eventA: NormalizedEventRequest = {
sessionId: SessionId('s'),
query: 'needle',
limit: 2,
filters: [{ kind: 'seq' }, { kind: 'surface', values: ['shadowed', 'current'] }],
}
const eventB: NormalizedEventRequest = {
sessionId: SessionId('s'),
query: 'needle',
limit: 2,
filters: [{ kind: 'surface', values: ['current', 'shadowed'] }, { kind: 'seq' }],
}
expect(requestFingerprint(eventA)).toBe(requestFingerprint(eventB))
expect(requestFingerprint(eventA)).not.toBe(requestFingerprint({ ...eventB, sessionId: SessionId('other') }))
})
it('normalizes, bounds, and positions snippets by Unicode code point', () => {
expect(makeSnippet(' short\ntext ', 20)).toBe('short text')
expect(makeSnippet(`abcde${FTS_HIGHLIGHT_START}f${FTS_HIGHLIGHT_END}`, 1)).toBe('…')
expect(makeSnippet('abcdefghij', 5)).toBe('abcd…')
expect(makeSnippet(`ab${FTS_HIGHLIGHT_START}c${FTS_HIGHLIGHT_END}defghij`, 5)).toBe('…bcd…')
expect(makeSnippet(`ab${FTS_HIGHLIGHT_START}c${FTS_HIGHLIGHT_END}defghij`, 3)).toBe('…c…')
expect(makeSnippet(`abcde${FTS_HIGHLIGHT_START}f${FTS_HIGHLIGHT_END}`, 2)).toBe('…f')
expect(makeSnippet(`abcde${FTS_HIGHLIGHT_START}f${FTS_HIGHLIGHT_END}`, 5)).toBe('…cdef')
expect(makeSnippet(` x—${FTS_HIGHLIGHT_START}café${FTS_HIGHLIGHT_END}\n y `, 20))
.toBe('x—café y')
})
})
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