package org.multiverse.collections;
import org.junit.Before;
import org.junit.Test;
import org.multiverse.api.Stm;
import org.multiverse.api.StmUtils;
import org.multiverse.api.Txn;
import org.multiverse.api.callables.TxnVoidCallable;
import static org.junit.Assert.assertEquals;
import static org.multiverse.api.GlobalStmInstance.getGlobalStmInstance;
import static org.multiverse.api.TxnThreadLocal.clearThreadLocalTxn;
public class NaiveTxHashMap_clearTest {
private Stm stm;
private NaiveTxnHashMap<String, String> map;
@Before
public void setUp() {
stm = getGlobalStmInstance();
clearThreadLocalTxn();
map = new NaiveTxnHashMap<String, String>(stm);
}
@Test
public void whenNotEmpty() {
StmUtils.atomic(new TxnVoidCallable() {
@Override
public void call(Txn tx) throws Exception {
map.put("1", "a");
map.put("2", "b");
map.put("3", "c");
map.put("4", "d");
map.clear();
assertEquals(0, map.size());
assertEquals("[]", map.toString());
}
});
}
@Test
public void whenManyItems() {
StmUtils.atomic(new TxnVoidCallable() {
@Override
public void call(Txn tx) throws Exception {
for (int k = 0; k < 1000; k++) {
map.put("" + k, "" + k);
}
map.clear();
assertEquals(0, map.size());
assertEquals("[]", map.toString());
}
});
}
@Test
public void whenEmpty() {
StmUtils.atomic(new TxnVoidCallable() {
@Override
public void call(Txn tx) throws Exception {
map.clear();
assertEquals(0, map.size());
assertEquals("[]", map.toString());
}
});
}
}