lmdbjava/src/test/java/org/lmdbjava/EnvDeprecatedTest.java at master · lmdbjava/lmdbjava · GitHub

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* 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 java.nio.ByteBuffer.allocateDirect;

import static org.assertj.core.api.Assertions.assertThat;

import static org.assertj.core.api.Assertions.assertThatThrownBy;

import static org.lmdbjava.ByteUnit.KIBIBYTES;

import static org.lmdbjava.ByteUnit.MEBIBYTES;

import static org.lmdbjava.CopyFlags.MDB_CP_COMPACT;

import static org.lmdbjava.DbiFlags.MDB_CREATE;

import static org.lmdbjava.Env.Builder.MAX_READERS_DEFAULT;

import static org.lmdbjava.EnvFlags.MDB_NOSUBDIR;

import static org.lmdbjava.EnvFlags.MDB_RDONLY_ENV;

import static org.lmdbjava.TestUtils.DB_1;

import static org.lmdbjava.TestUtils.bb;

import java.io.IOException;

import java.io.UncheckedIOException;

import java.nio.ByteBuffer;

import java.nio.file.Files;

import java.nio.file.Path;

import java.util.Random;

import org.junit.jupiter.api.AfterEach;

import org.junit.jupiter.api.BeforeEach;

import org.junit.jupiter.api.Test;

import org.lmdbjava.Env.AlreadyClosedException;

import org.lmdbjava.Env.AlreadyOpenException;

import org.lmdbjava.Env.Builder;

import org.lmdbjava.Env.InvalidCopyDestination;

import org.lmdbjava.Env.MapFullException;

/**

* Tests all the deprecated methods in {@link Env}. Essentially a duplicate of {@link EnvTest}. When

* all the deprecated methods are deleted we can delete this test class.

* @deprecated Tests all the deprecated methods in {@link Env}.

@Deprecated

public class EnvDeprecatedTest {

private TempDir tempDir;

@BeforeEach

void beforeEach() {

tempDir = new TempDir();

}

@AfterEach

void afterEach() {

tempDir.cleanup();

}

@Test

void byteUnit() {

final Path file = tempDir.createTempFile();

try (Env<ByteBuffer> env =

Env.create()

.setMaxReaders(1)

.setMapSize(MEBIBYTES.toBytes(1))

.open(file.toFile(), MDB_NOSUBDIR)) {

final EnvInfo info = env.info();

assertThat(info.mapSize).isEqualTo(MEBIBYTES.toBytes(1));

}

@Test

void cannotChangeMapSizeAfterOpen() {

assertThatThrownBy(

() -> {

final Path file = tempDir.createTempFile();

final Builder<ByteBuffer> builder = Env.create().setMaxReaders(1);

try (Env<ByteBuffer> env = builder.open(file.toFile(), MDB_NOSUBDIR)) {

builder.setMapSize(1);

}

})

.isInstanceOf(AlreadyOpenException.class);

}

@Test

void cannotChangeMaxDbsAfterOpen() {

assertThatThrownBy(

() -> {

final Path file = tempDir.createTempFile();

final Builder<ByteBuffer> builder = Env.create().setMaxReaders(1);

try (Env<ByteBuffer> env = builder.open(file.toFile(), MDB_NOSUBDIR)) {

builder.setMaxDbs(1);

}

})

.isInstanceOf(AlreadyOpenException.class);

}

@Test

void cannotChangeMaxReadersAfterOpen() {

assertThatThrownBy(

() -> {

final Path file = tempDir.createTempFile();

final Builder<ByteBuffer> builder = Env.create().setMaxReaders(1);

try (Env<ByteBuffer> env = builder.open(file.toFile(), MDB_NOSUBDIR)) {

builder.setMaxReaders(1);

}

})

.isInstanceOf(AlreadyOpenException.class);

}

@Test

void cannotInfoOnceClosed() {

assertThatThrownBy(

() -> {

final Path file = tempDir.createTempFile();

final Env<ByteBuffer> env =

Env.create().setMaxReaders(1).open(file.toFile(), MDB_NOSUBDIR);

env.close();

env.info();

})

.isInstanceOf(AlreadyClosedException.class);

}

@Test

void cannotOpenTwice() {

assertThatThrownBy(

() -> {

final Path file = tempDir.createTempFile();

final Builder<ByteBuffer> builder = Env.create().setMaxReaders(1);

builder.open(file.toFile(), MDB_NOSUBDIR).close();

builder.open(file.toFile(), MDB_NOSUBDIR);

})

.isInstanceOf(AlreadyOpenException.class);

}

@Test

void cannotStatOnceClosed() {

assertThatThrownBy(

() -> {

final Path file = tempDir.createTempFile();

final Env<ByteBuffer> env =

Env.create().setMaxReaders(1).open(file.toFile(), MDB_NOSUBDIR);

env.close();

env.stat();

})

.isInstanceOf(AlreadyClosedException.class);

}

@Test

void cannotSyncOnceClosed() {

assertThatThrownBy(

() -> {

final Path file = tempDir.createTempFile();

final Env<ByteBuffer> env =

Env.create().setMaxReaders(1).open(file.toFile(), MDB_NOSUBDIR);

env.close();

env.sync(false);

})

.isInstanceOf(AlreadyClosedException.class);

}

@Test

void copyDirectoryBased() {

final Path dest = tempDir.createTempDir();

final Path src = tempDir.createTempDir();

assertThat(Files.exists(dest)).isTrue();

assertThat(Files.isDirectory(dest)).isTrue();

assertThat(FileUtil.count(dest)).isEqualTo(0);

try (Env<ByteBuffer> env = Env.create().setMaxReaders(1).open(src.toFile())) {

env.copy(dest.toFile(), MDB_CP_COMPACT);

assertThat(FileUtil.count(dest)).isEqualTo(1);

}

@Test

void copyDirectoryRejectsFileDestination() {

assertThatThrownBy(

() -> {

final Path dest = tempDir.createTempDir();

final Path src = tempDir.createTempDir();

FileUtil.deleteDir(dest);

try (Env<ByteBuffer> env = Env.create().setMaxReaders(1).open(src.toFile())) {

env.copy(dest.toFile(), MDB_CP_COMPACT);

}

})

.isInstanceOf(InvalidCopyDestination.class);

}

@Test

void copyDirectoryRejectsMissingDestination() {

final Path dest = tempDir.createTempDir();

final Path src = tempDir.createTempDir();

assertThatThrownBy(

() -> {

try {

Files.delete(dest);

try (Env<ByteBuffer> env = Env.create().setMaxReaders(1).open(src.toFile())) {

env.copy(dest.toFile(), MDB_CP_COMPACT);

}

} catch (final IOException e) {

throw new UncheckedIOException(e);

}

})

.isInstanceOf(InvalidCopyDestination.class);

}

@Test

void copyDirectoryRejectsNonEmptyDestination() {

final Path dest = tempDir.createTempDir();

final Path src = tempDir.createTempDir();

assertThatThrownBy(

() -> {

try {

final Path subDir = dest.resolve("hello");

Files.createDirectory(subDir);

assertThat(Files.isDirectory(subDir)).isTrue();

try (Env<ByteBuffer> env = Env.create().setMaxReaders(1).open(src.toFile())) {

env.copy(dest.toFile(), MDB_CP_COMPACT);

}

} catch (final IOException e) {

throw new UncheckedIOException(e);

}

})

.isInstanceOf(InvalidCopyDestination.class);

}

@Test

void copyFileBased() {

final Path dest = tempDir.createTempFile();

final Path src = tempDir.createTempFile();

assertThat(Files.exists(dest)).isFalse();

try (Env<ByteBuffer> env = Env.create().setMaxReaders(1).open(src.toFile(), MDB_NOSUBDIR)) {

env.copy(dest.toFile(), MDB_CP_COMPACT);

}

assertThat(FileUtil.size(dest)).isGreaterThan(0L);

}

@Test

void copyFileRejectsExistingDestination() {

final Path dest = tempDir.createTempFile();

final Path src = tempDir.createTempFile();

assertThatThrownBy(

() -> {

Files.createFile(dest);

assertThat(Files.exists(dest)).isTrue();

try (Env<ByteBuffer> env =

Env.create().setMaxReaders(1).open(src.toFile(), MDB_NOSUBDIR)) {

env.copy(dest.toFile(), MDB_CP_COMPACT);

}

})

.isInstanceOf(InvalidCopyDestination.class);

}

@Test

void createAsFile() {

final Path file = tempDir.createTempFile();

try (Env<ByteBuffer> env =

Env.create()

.setMapSize(MEBIBYTES.toBytes(1))

.setMaxDbs(1)

.setMaxReaders(1)

.open(file.toFile(), MDB_NOSUBDIR)) {

env.sync(true);

assertThat(Files.isRegularFile(file)).isTrue();

}

@Test

void mapFull() {

final Path dir = tempDir.createTempDir();

assertThatThrownBy(

() -> {

final byte[] k = new byte[500];

final ByteBuffer key = allocateDirect(500);

final ByteBuffer val = allocateDirect(1_024);

final Random rnd = new Random();

try (Env<ByteBuffer> env =

Env.create()

.setMaxReaders(1)

.setMapSize(MEBIBYTES.toBytes(8))

.setMaxDbs(1)

.open(dir.toFile())) {

final Dbi<ByteBuffer> db = env.openDbi(DB_1, MDB_CREATE);

for (; ; ) {

rnd.nextBytes(k);

key.clear();

key.put(k).flip();

val.clear();

db.put(key, val);

}

})

.isInstanceOf(MapFullException.class);

}

@Test

void readOnlySupported() {

final Path dir = tempDir.createTempDir();

try (Env<ByteBuffer> rwEnv = Env.create().setMaxReaders(1).open(dir.toFile())) {

final Dbi<ByteBuffer> rwDb = rwEnv.openDbi(DB_1, MDB_CREATE);

rwDb.put(bb(1), bb(42));

}

try (Env<ByteBuffer> roEnv = Env.create().setMaxReaders(1).open(dir.toFile(), MDB_RDONLY_ENV)) {

final Dbi<ByteBuffer> roDb = roEnv.openDbi(DB_1);

try (Txn<ByteBuffer> roTxn = roEnv.txnRead()) {

assertThat(roDb.get(roTxn, bb(1))).isNotNull();

}

@Test

void setMapSize() {

final Path dir = tempDir.createTempDir();

final byte[] k = new byte[500];

final ByteBuffer key = allocateDirect(500);

final ByteBuffer val = allocateDirect(1_024);

final Random rnd = new Random();

try (Env<ByteBuffer> env =

Env.create()

.setMaxReaders(1)

.setMapSize(KIBIBYTES.toBytes(256))

.setMaxDbs(1)

.open(dir.toFile())) {

final Dbi<ByteBuffer> db = env.openDbi(DB_1, MDB_CREATE);

db.put(bb(1), bb(42));

boolean mapFullExThrown = false;

try {

for (int i = 0; i < 70; i++) {

rnd.nextBytes(k);

key.clear();

key.put(k).flip();

val.clear();

db.put(key, val);

}

} catch (final MapFullException mfE) {

mapFullExThrown = true;

}

assertThat(mapFullExThrown).isTrue();

env.setMapSize(KIBIBYTES.toBytes(1024));

try (Txn<ByteBuffer> roTxn = env.txnRead()) {

final ByteBuffer byteBuffer = db.get(roTxn, bb(1));

assertThat(byteBuffer).isNotNull();

assertThat(byteBuffer.getInt()).isEqualTo(42);

}

mapFullExThrown = false;

try {

for (int i = 0; i < 70; i++) {

rnd.nextBytes(k);

key.clear();

key.put(k).flip();

val.clear();

db.put(key, val);

}

} catch (final MapFullException mfE) {

mapFullExThrown = true;

}

assertThat(mapFullExThrown).isFalse();

}

@Test

void testDefaultOpen() {

final Path dir = tempDir.createTempDir();

try (Env<ByteBuffer> env = Env.open(dir.toFile(), 10)) {

final EnvInfo info = env.info();

assertThat(info.maxReaders).isEqualTo(MAX_READERS_DEFAULT);

final Dbi<ByteBuffer> db = env.openDbi("test", MDB_CREATE);

db.put(allocateDirect(1), allocateDirect(1));

}

lmdbjava/src/test/java/org/lmdbjava/EnvDeprecatedTest.java at master · lmdbjava/lmdbjava · GitHub

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