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import { assert } from 'chai'
import { toBufferKey, fromBufferKey, readKey, writeKey } from '../index.js'
function assertBufferComparison(lesser, greater) {
for (let i = 0; i < lesser.length; i++) {
if (lesser[i] < greater[i]) {
return
}
if (lesser[i] > (greater[i] || 0)) {
assert.fail('Byte ' + i + 'should not be ' + lesser[i] + '>' + greater[i])
}
}
}
//var inspector = require('inspector'); inspector.open(9330, null, true); debugger
suite('key buffers', () => {
test('numbers equivalence', () => {
assert.strictEqual(fromBufferKey(toBufferKey(4)), 4)
assert.strictEqual(fromBufferKey(toBufferKey(-4)), -4)
assert.strictEqual(fromBufferKey(toBufferKey(3.4)), 3.4)
assert.strictEqual(fromBufferKey(toBufferKey(Math.PI)), Math.PI)
assert.strictEqual(fromBufferKey(toBufferKey(9377288)), 9377288)
assert.strictEqual(fromBufferKey(toBufferKey(1503579323825)), 1503579323825)
assert.strictEqual(fromBufferKey(toBufferKey(1503579323825.3523532)), 1503579323825.3523532)
assert.strictEqual(fromBufferKey(toBufferKey(-1503579323825)), -1503579323825)
assert.strictEqual(fromBufferKey(toBufferKey(0.00005032)), 0.00005032)
assert.strictEqual(fromBufferKey(toBufferKey(-0.00005032)), -0.00005032)
assert.strictEqual(fromBufferKey(toBufferKey(0.00000000000000000000000005431)), 0.00000000000000000000000005431)
})
test('number comparison', () => {
assertBufferComparison(toBufferKey(4), toBufferKey(5))
assertBufferComparison(toBufferKey(1503579323824), toBufferKey(1503579323825))
assertBufferComparison(toBufferKey(1.4), toBufferKey(2))
assertBufferComparison(toBufferKey(0.000000001), toBufferKey(0.00000001))
assertBufferComparison(toBufferKey(-4), toBufferKey(3))
assertBufferComparison(toBufferKey(0), toBufferKey(1))
assertBufferComparison(toBufferKey(-0.001), toBufferKey(0))
assertBufferComparison(toBufferKey(-0.001), toBufferKey(-0.000001))
assertBufferComparison(toBufferKey(-5236532532532), toBufferKey(-5236532532531))
})
test('string equivalence', () => {
assert.strictEqual(fromBufferKey(toBufferKey('4')), '4')
assert.strictEqual(fromBufferKey(toBufferKey('hello')), 'hello')
assert.strictEqual(fromBufferKey(toBufferKey('')), '')
})
test('string comparison', () => {
assertBufferComparison(toBufferKey('4'), toBufferKey('5'))
assertBufferComparison(toBufferKey('and'), toBufferKey('bad'))
assertBufferComparison(toBufferKey('hello'), toBufferKey('hello2'))
let buffer = Buffer.alloc(1024)
let end = writeKey(['this is a test', 5.25], buffer, 0)
})
test('boolean equivalence', () => {
assert.strictEqual(fromBufferKey(toBufferKey(true)), true)
assert.strictEqual(fromBufferKey(toBufferKey(false)), false)
})
test('multipart equivalence', () => {
assert.deepEqual(fromBufferKey(toBufferKey([4, 5])),
[4, 5])
assert.deepEqual(fromBufferKey(toBufferKey(['hello', 5.25])),
['hello', 5.25])
assert.deepEqual(fromBufferKey(toBufferKey([true, 1503579323825])),
[true, 1503579323825])
assert.deepEqual(fromBufferKey(toBufferKey([-0.2525, 'second'])),
[-0.2525, 'second'])
assert.deepEqual(fromBufferKey(toBufferKey([-0.2525, '2nd', '3rd'])),
[-0.2525, '2nd', '3rd'])
})
test('multipart comparison', () => {
assertBufferComparison(
Buffer.concat([toBufferKey(4), Buffer.from([30]), toBufferKey(5)]),
Buffer.concat([toBufferKey(5), Buffer.from([30]), toBufferKey(5)]))
assertBufferComparison(
Buffer.concat([toBufferKey(4), Buffer.from([30]), toBufferKey(5)]),
Buffer.concat([toBufferKey(4), Buffer.from([30]), toBufferKey(6)]))
assertBufferComparison(
Buffer.concat([toBufferKey('and'), Buffer.from([30]), toBufferKey(5)]),
Buffer.concat([toBufferKey('and2'), Buffer.from([30]), toBufferKey(5)]))
assertBufferComparison(
Buffer.concat([toBufferKey(4), Buffer.from([30]), toBufferKey('and')]),
Buffer.concat([toBufferKey(4), Buffer.from([30]), toBufferKey('cat')]))
})
test('performance', () => {
let buffer = Buffer.alloc(1024)
let start = process.hrtime.bigint()
let end, value
for (let i = 0; i < 1000000; i++) {
end = writeKey('this is a test of a longer string to read and write', buffer, 0)
}
console.log('writeKey string time', nextTime(), end)
for (let i = 0; i < 1000000; i++) {
value = readKey(buffer, 0, end)
}
console.log('readKey string time', nextTime(), value)
for (let i = 0; i < 1000000; i++) {
end = writeKey(33456, buffer, 0)
}
console.log('writeKey number time', nextTime(), end)
for (let i = 0; i < 1000000; i++) {
value = readKey(buffer, 2, end)
}
console.log('readKey number time', nextTime(), value)
for (let i = 0; i < 1000000; i++) {
end = writeKey(['hello', 33456], buffer, 0)
}
console.log('writeKey array time', nextTime(), end, buffer.slice(0, end))
for (let i = 0; i < 1000000; i++) {
value = readKey(buffer, 0, end)
}
console.log('readKey array time', nextTime(), value)
function nextTime() {
let ns = process.hrtime.bigint()
let elapsed = ns - start
start = ns
return Number(elapsed) / 1000000 + 'ns'
}
})
})