'use strict'

// Use setImmediate() in Node.js to allow IO in between work

/* istanbul ignore else: coverage currently does not include browsers */

if (typeof process !== 'undefined' && !process.browser && typeof global !== 'undefined' && typeof global.setImmediate === 'function') {

const setImmediate = global.setImmediate

"CHANGELOG.md"

],

"dependencies": {

"abstract-level": "^3.0.0",

"abstract-level": "^3.0.1",

"functional-red-black-tree": "^1.0.1",

"module-error": "^1.0.1"

},

t.throws(() => new MemoryLevel({ storeEncoding: 'foo' }), (err) => err.code === 'LEVEL_ENCODING_NOT_SUPPORTED')

t.end()

})

test('clear() waits a tick every 500 items', async function (t) {

const db = new MemoryLevel()

const batch = Array(1000)

for (let i = 0; i < batch.length; i++) {

batch[i] = { type: 'put', key: i, value: i }

}

await db.open()

await db.batch(batch)

t.is((await db.keys().all()).length, batch.length)

// This just checks that the code runs OK, not that it waits a

// tick (TODO). Pass in a limit in order to use an iterator

// instead of the fast-path of clear() that just deletes all.

await db.clear({ limit: batch.length * 2 })

t.is((await db.keys().all()).length, 0)

return db.close()

})