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// Copyright (C) 2015 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package com.google.gerrit.server.cache.h2;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.util.concurrent.MoreExecutors;
import com.google.gerrit.server.cache.h2.H2CacheImpl.SqlStore;
import com.google.gerrit.server.cache.h2.H2CacheImpl.ValueHolder;
import com.google.inject.TypeLiteral;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.atomic.AtomicBoolean;
import org.junit.Before;
import org.junit.Test;
public class H2CacheTest {
private static int dbCnt;
private Cache<String, ValueHolder<Boolean>> mem;
private H2CacheImpl<String, Boolean> impl;
@Before
public void setUp() {
mem = CacheBuilder.newBuilder().build();
TypeLiteral<String> keyType = new TypeLiteral<String>() {};
SqlStore<String, Boolean> store =
new SqlStore<>("jdbc:h2:mem:Test_" + (++dbCnt), keyType, 1 << 20, 0);
impl = new H2CacheImpl<>(MoreExecutors.directExecutor(), store, keyType, mem);
}
@Test
public void get() throws ExecutionException {
assertNull(impl.getIfPresent("foo"));
final AtomicBoolean called = new AtomicBoolean();
assertTrue(
impl.get(
"foo",
new Callable<Boolean>() {
@Override
public Boolean call() throws Exception {
called.set(true);
return true;
}
}));
assertTrue("used Callable", called.get());
assertTrue("exists in cache", impl.getIfPresent("foo"));
mem.invalidate("foo");
assertTrue("exists on disk", impl.getIfPresent("foo"));
called.set(false);
assertTrue(
impl.get(
"foo",
new Callable<Boolean>() {
@Override
public Boolean call() throws Exception {
called.set(true);
return true;
}
}));
assertFalse("did not invoke Callable", called.get());
}
}
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