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TestUtils.java
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79 lines (67 loc) · 2.32 KB
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/*
* Copyright © 2016-2025 The LmdbJava 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 org.lmdbjava;
import static io.netty.buffer.PooledByteBufAllocator.DEFAULT;
import static java.lang.Integer.BYTES;
import static java.nio.ByteBuffer.allocateDirect;
import io.netty.buffer.ByteBuf;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.nio.ByteBuffer;
import org.agrona.MutableDirectBuffer;
import org.agrona.concurrent.UnsafeBuffer;
/** Static constants and methods that are convenient when writing LMDB-related tests. */
final class TestUtils {
public static final String DB_1 = "test-db-1";
public static final int POSIX_MODE = 0664;
private TestUtils() {}
static byte[] ba(final int value) {
byte[] bytes = new byte[4];
ByteBuffer.wrap(bytes).putInt(value);
return bytes;
}
static int fromBa(final byte[] ba) {
return ByteBuffer.wrap(ba).getInt();
}
static ByteBuffer bb(final int value) {
final ByteBuffer bb = allocateDirect(BYTES);
bb.putInt(value).flip();
return bb;
}
static void invokePrivateConstructor(final Class<?> clazz) {
try {
final Constructor<?> c = clazz.getDeclaredConstructor();
c.setAccessible(true);
c.newInstance();
} catch (final NoSuchMethodException
| InstantiationException
| IllegalAccessException
| IllegalArgumentException
| InvocationTargetException e) {
throw new LmdbException("Private construction failed", e);
}
}
static MutableDirectBuffer mdb(final int value) {
final MutableDirectBuffer b = new UnsafeBuffer(allocateDirect(BYTES));
b.putInt(0, value);
return b;
}
static ByteBuf nb(final int value) {
final ByteBuf b = DEFAULT.directBuffer(BYTES);
b.writeInt(value);
return b;
}
}