bdb/test/txn_test.rb

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require 'test_helper'
class TxnTest < Test::Unit::TestCase
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def setup
mkdir File.join(File.dirname(__FILE__), 'tmp')
@env = Bdb::Env.new(0)
env_flags = Bdb::DB_CREATE | # Create the environment if it does not already exist.
Bdb::DB_INIT_TXN | # Initialize transactions
Bdb::DB_INIT_LOCK | # Initialize locking.
Bdb::DB_INIT_LOG | # Initialize logging
Bdb::DB_INIT_MPOOL # Initialize the in-memory cache.
@env.open(File.join(File.dirname(__FILE__), 'tmp'), env_flags, 0);
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@db = @env.db
@db.open(nil, 'db1.db', nil, Bdb::Db::BTREE, Bdb::DB_CREATE | Bdb::DB_AUTO_COMMIT, 0)
end
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def teardown
@db.close(0)
@env.close
rm_rf File.join(File.dirname(__FILE__), 'tmp')
end
def test_commit
txn = @env.txn_begin(nil, 0)
@db.put(txn, 'key', 'value', 0)
txn.commit(0)
assert_equal 'value', @db.get(nil, 'key', nil, 0)
end
def test_abort
txn = @env.txn_begin(nil, 0)
@db.put(txn, 'key', 'value', 0)
txn.abort
assert_nil @db.get(nil, 'key', nil, 0)
end
def test_id
txn = @env.txn_begin(nil, 0)
@db.put(txn, 'key', 'value', 0)
assert txn.tid
txn.commit(0)
assert_equal 'value', @db.get(nil, 'key', nil, 0)
end
def test_timeout
txn = @env.txn_begin(nil, 0)
txn.set_timeout(10, Bdb::DB_SET_TXN_TIMEOUT)
@db.put(txn, 'key', 'value', 0)
txn.commit(0)
assert_equal 'value', @db.get(nil, 'key', nil, 0)
end
def test_stat
txn = @env.txn_begin(nil, 0)
@db.put(txn, 'key', 'value', 0)
txn.commit(0)
txn_stat = @env.txn_stat(0)
assert txn_stat
assert txn_stat['st_ncommits'] > 0
assert_equal 'value', @db.get(nil, 'key', nil, 0)
end
def test_stat_active
txn = @env.txn_begin(nil, 0)
@db.put(txn, 'key', 'value', 0)
txn_stat = @env.txn_stat(0)
txn.commit(0)
assert_equal 1, txn_stat['st_txnarray'].length
assert_equal 'value', @db.get(nil, 'key', nil, 0)
end
end