100 lines
2.6 KiB
JavaScript

'use strict'
// NOTE: copied from levelup
exports.all = function (test, testCommon) {
for (const deferred of [false, true]) {
test(`custom encoding: simple-object values (deferred: ${deferred})`, function (t) {
run(t, deferred, [
{ key: '0', value: 0 },
{ key: '1', value: 1 },
{ key: 'string', value: 'a string' },
{ key: 'true', value: true },
{ key: 'false', value: false }
])
})
test(`custom encoding: simple-object keys (deferred: ${deferred})`, function (t) {
// Test keys that would be considered the same with default utf8 encoding.
// Because String([1]) === String(1).
run(t, deferred, [
{ value: '0', key: [1] },
{ value: '1', key: 1 },
{ value: 'string', key: 'a string' },
{ value: 'true', key: true },
{ value: 'false', key: false }
])
})
test(`custom encoding: complex-object values (deferred: ${deferred})`, function (t) {
run(t, deferred, [{
key: '0',
value: {
foo: 'bar',
bar: [1, 2, 3],
bang: { yes: true, no: false }
}
}])
})
test(`custom encoding: complex-object keys (deferred: ${deferred})`, function (t) {
// Test keys that would be considered the same with default utf8 encoding.
// Because String({}) === String({}) === '[object Object]'.
run(t, deferred, [{
value: '0',
key: {
foo: 'bar',
bar: [1, 2, 3],
bang: { yes: true, no: false }
}
}, {
value: '1',
key: {
foo: 'different',
bar: [1, 2, 3],
bang: { yes: true, no: false }
}
}])
})
}
function run (t, deferred, entries) {
const customEncoding = {
encode: JSON.stringify,
decode: JSON.parse,
format: 'utf8',
type: 'custom'
}
const db = testCommon.factory({
keyEncoding: customEncoding,
valueEncoding: customEncoding
})
const operations = entries.map(entry => ({ type: 'put', ...entry }))
const init = deferred ? (fn) => fn() : db.open.bind(db)
init(function (err) {
t.ifError(err, 'no init() error')
db.batch(operations, function (err) {
t.ifError(err, 'no batch() error')
let pending = entries.length
const next = () => {
if (--pending === 0) {
db.close(t.end.bind(t))
}
}
for (const entry of entries) {
db.get(entry.key, function (err, value) {
t.ifError(err, 'no get() error')
t.same(value, entry.value)
next()
})
}
})
})
}
}