nim-rocksdb/tests/test_writebatch.nim

150 lines
3.7 KiB
Nim

# Nim-RocksDB
# Copyright 2024 Status Research & Development GmbH
# Licensed under either of
#
# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
# * GPL license, version 2.0, ([LICENSE-GPLv2](LICENSE-GPLv2) or https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)
#
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.used.}
import std/os, tempfile, unittest2, ../rocksdb/[rocksdb, writebatch], ./test_helper
suite "WriteBatchRef Tests":
const
CF_DEFAULT = "default"
CF_OTHER = "other"
let
key1 = @[byte(1)]
val1 = @[byte(1)]
key2 = @[byte(2)]
val2 = @[byte(2)]
key3 = @[byte(3)]
val3 = @[byte(3)]
setup:
let
dbPath = mkdtemp() / "data"
db = initReadWriteDb(dbPath, columnFamilyNames = @[CF_DEFAULT, CF_OTHER])
defaultCfHandle = db.getColFamilyHandle(CF_DEFAULT).get()
otherCfHandle = db.getColFamilyHandle(CF_OTHER).get()
teardown:
db.close()
removeDir($dbPath)
test "Test writing batch to the default column family":
var batch = db.openWriteBatch()
defer:
batch.close()
check not batch.isClosed()
check:
batch.put(key1, val1).isOk()
batch.put(key2, val2).isOk()
batch.put(key3, val3).isOk()
batch.count() == 3
batch.delete(key2).isOk()
batch.count() == 4
not batch.isClosed()
let res = db.write(batch)
check:
res.isOk()
db.write(batch).isOk() # test that it's idempotent
db.get(key1).get() == val1
db.keyExists(key2).get() == false
db.get(key3).get() == val3
batch.clear()
check:
batch.count() == 0
not batch.isClosed()
test "Test writing batch to column family":
var batch = db.openWriteBatch(otherCfHandle)
defer:
batch.close()
check not batch.isClosed()
check:
batch.put(key1, val1).isOk()
batch.put(key2, val2).isOk()
batch.put(key3, val3).isOk()
batch.count() == 3
batch.delete(key2).isOk()
batch.count() == 4
not batch.isClosed()
let res = db.write(batch)
check:
res.isOk()
db.get(key1, otherCfHandle).get() == val1
db.keyExists(key2, otherCfHandle).get() == false
db.get(key3, otherCfHandle).get() == val3
batch.clear()
check:
batch.count() == 0
not batch.isClosed()
test "Test writing to multiple column families in multiple batches":
var batch1 = db.openWriteBatch(defaultCfHandle)
defer:
batch1.close()
check not batch1.isClosed()
var batch2 = db.openWriteBatch(otherCfHandle)
defer:
batch2.close()
check not batch2.isClosed()
check:
batch1.put(key1, val1).isOk()
batch1.delete(key2).isOk()
batch1.put(key3, val3).isOk()
batch2.put(key1, val1).isOk()
batch2.delete(key1).isOk()
batch2.put(key3, val3).isOk()
batch1.count() == 3
batch2.count() == 3
let res1 = db.write(batch1)
let res2 = db.write(batch2)
check:
res1.isOk()
res2.isOk()
db.get(key1).get() == val1
db.keyExists(key2).get() == false
db.get(key3).get() == val3
db.keyExists(key1, otherCfHandle).get() == false
db.keyExists(key2, otherCfHandle).get() == false
db.get(key3, otherCfHandle).get() == val3
test "Test write empty batch":
var batch = db.openWriteBatch()
defer:
batch.close()
check not batch.isClosed()
check batch.count() == 0
let res1 = db.write(batch)
check:
res1.isOk()
batch.count() == 0
test "Test close":
var batch = db.openWriteBatch()
check not batch.isClosed()
batch.close()
check batch.isClosed()
batch.close()
check batch.isClosed()