smartass
92 lines
2.8 KiB
TypeScript
92 lines
2.8 KiB
TypeScript
import { describe, expect, it } from 'vitest'
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import {
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clampRowLimit,
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DEFAULT_ROW_LIMIT,
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formatDbError,
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MAX_ROW_LIMIT,
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normalizeCell,
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truncateRows
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} from '../../src/format.js'
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describe('clampRowLimit', () => {
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it('defaults when undefined', () => {
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expect(clampRowLimit(undefined)).toBe(DEFAULT_ROW_LIMIT)
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})
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it('clamps to max and min and truncates fractions', () => {
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expect(clampRowLimit(99999)).toBe(MAX_ROW_LIMIT)
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expect(clampRowLimit(0)).toBe(1)
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expect(clampRowLimit(-5)).toBe(1)
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expect(clampRowLimit(10.9)).toBe(10)
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})
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})
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describe('truncateRows', () => {
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it('passes short arrays through', () => {
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expect(truncateRows([1, 2], 5)).toEqual({ rows: [1, 2], truncated: false })
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})
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it('slices long arrays and flags truncation', () => {
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const { rows, truncated } = truncateRows([1, 2, 3], 2)
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expect(rows).toEqual([1, 2])
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expect(truncated).toBe(true)
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})
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})
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describe('normalizeCell', () => {
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it('converts bigint to string', () => {
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expect(normalizeCell(123n)).toBe('123')
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})
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it('converts Date to ISO string', () => {
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expect(normalizeCell(new Date('2026-01-02T03:04:05Z'))).toBe('2026-01-02T03:04:05.000Z')
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})
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it('converts Buffer to hex string', () => {
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expect(normalizeCell(Buffer.from([0xde, 0xad]))).toBe('\\xdead')
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})
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it('passes primitives and null through', () => {
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expect(normalizeCell('x')).toBe('x')
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expect(normalizeCell(5)).toBe(5)
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expect(normalizeCell(null)).toBeNull()
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})
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})
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describe('formatDbError', () => {
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it('formats code, detail and hint', () => {
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const error = Object.assign(new Error('relation "x" does not exist'), {
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code: '42P01',
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hint: 'check the table name'
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})
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expect(formatDbError('postgres', error)).toBe(
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'[postgres 42P01] relation "x" does not exist (check the table name)'
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)
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})
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it('prefers sqlMessage for mysql errors', () => {
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const error = Object.assign(new Error('outer'), {
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code: 'ER_NO_SUCH_TABLE',
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sqlMessage: "Table 'a.b' doesn't exist"
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})
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expect(formatDbError('mysql', error)).toBe(
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"[mysql ER_NO_SUCH_TABLE] Table 'a.b' doesn't exist"
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)
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})
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it('joins detail and hint', () => {
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const error = Object.assign(new Error('boom'), {
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code: '23505',
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detail: 'Key (id)=(1) already exists.',
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hint: 'use upsert'
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})
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expect(formatDbError('postgres', error)).toBe(
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'[postgres 23505] boom (Key (id)=(1) already exists. | use upsert)'
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)
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})
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it('handles non-Error values', () => {
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expect(formatDbError('mysql', 'boom')).toBe('[mysql] boom')
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})
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})
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