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init-test.js
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init-test.js
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var levelup = require('../lib/levelup')
var memdown = require('memdown')
module.exports = function (test, testCommon) {
test('Init & open(): levelup()', function (t) {
t.is(typeof levelup, 'function')
t.is(levelup.length, 3) // db, options & callback arguments
t.throws(levelup, /^InitializationError/) // no db
t.end()
})
test('Init & open(): open and close statuses', function (t) {
levelup(memdown(), function (err, db) {
t.ifError(err, 'no error')
t.is(db.isOpen(), true)
db.close(function (err) {
t.ifError(err)
t.is(db.isOpen(), false)
t.is(db.isClosed(), true)
levelup(memdown(), function (err, db) {
t.ifError(err)
t.ok(typeof db === 'object' && db !== null)
db.close(t.end.bind(t))
})
})
})
})
test('Init & open(): without callback', function (t) {
var db = levelup(memdown())
t.ok(typeof db === 'object' && db !== null)
db.on('ready', function () {
t.is(db.isOpen(), true)
db.close(t.end.bind(t))
})
})
test('Init & open(): error with callback', function (t) {
t.plan(1)
var mem = memdown()
mem._open = function (opts, cb) {
process.nextTick(cb, new Error('from underlying store'))
}
levelup(mem, function (err) {
t.is(err.message, 'from underlying store')
}).on('open', function () {
t.fail('should not finish opening')
}).on('error', function () {
t.fail('should not emit error')
})
})
test('Init & open(): error without callback', function (t) {
t.plan(1)
var mem = memdown()
mem._open = function (opts, cb) {
process.nextTick(cb, new Error('from underlying store'))
}
levelup(mem)
.on('open', function () {
t.fail('should not finish opening')
})
.on('error', function (err) {
t.is(err.message, 'from underlying store')
})
})
test('Init & open(): validate abstract-leveldown', function (t) {
t.plan(1)
var down = memdown()
Object.defineProperty(down, 'status', {
get: function () { return null },
set: function () {}
})
try {
levelup(down)
} catch (err) {
t.is(err.message, '.status required, old abstract-leveldown')
}
})
test('Init & open(): support open options', function (t) {
var down = memdown()
levelup(down, function (err, up) {
t.ifError(err, 'no error')
up.close(function () {
down.open = function (opts) {
t.is(opts.foo, 'bar')
t.end()
}
up.open({ foo: 'bar' })
})
})
})
}