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RangeQueryTest.java
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/
RangeQueryTest.java
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/*
* RangeQueryTest.java
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2013-2018 Apple Inc. and the FoundationDB project authors
*
* 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.apple.foundationdb;
import java.util.AbstractMap;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.NavigableMap;
import java.util.TreeMap;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
import java.util.function.Function;
import com.apple.foundationdb.async.AsyncIterable;
import com.apple.foundationdb.tuple.ByteArrayUtil;
import com.apple.foundationdb.tuple.Tuple;
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.EnumSource;
/**
* Tests around the Range Query logic.
*
* These tests do _not_ require a running FDB server to function. Instead, we
* are operating on a good-faith "The underlying native library is correct"
* functionality. For end-to-end tests which require a running server, see the
* src/tests source folder.
*/
class RangeQueryTest {
private static Executor EXECUTOR = new Executor() {
@Override
public void execute(Runnable command) {
command.run();
}
};
private static Database makeFakeDatabase(List<Map.Entry<byte[], byte[]>> data) {
return new Database() {
// the choice of 3 is arbitrary, just trying to make sure it's unique(ish) in case we
// need to test that uniqueness later.
private long txnCounter = 3;
@Override
public Transaction createTransaction() {
long tId = txnCounter;
txnCounter++;
return new FakeFDBTransaction(data, tId, this, EXECUTOR);
}
@Override
protected void finalize() throws Throwable {
// no-op
}
@Override
public void close() {
// no-op
}
@Override
public Executor getExecutor() {
throw new UnsupportedOperationException("Unimplemented method 'getExecutor'");
}
@Override
public Tenant openTenant(Tuple tenantName) {
throw new UnsupportedOperationException("Unimplemented method 'openTenant'");
}
@Override
public Tenant openTenant(byte[] tenantName, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'openTenant'");
}
@Override
public Tenant openTenant(Tuple tenantName, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'openTenant'");
}
@Override
public Tenant openTenant(byte[] tenantName, Executor e, EventKeeper eventKeeper) {
throw new UnsupportedOperationException("Unimplemented method 'openTenant'");
}
@Override
public Tenant openTenant(Tuple tenantName, Executor e, EventKeeper eventKeeper) {
throw new UnsupportedOperationException("Unimplemented method 'openTenant'");
}
@Override
public Transaction createTransaction(Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'createTransaction'");
}
@Override
public Transaction createTransaction(Executor e, EventKeeper eventKeeper) {
throw new UnsupportedOperationException("Unimplemented method 'createTransaction'");
}
@Override
public DatabaseOptions options() {
throw new UnsupportedOperationException("Unimplemented method 'options'");
}
@Override
public double getMainThreadBusyness() {
throw new UnsupportedOperationException("Unimplemented method 'getMainThreadBusyness'");
}
@Override
public CompletableFuture<byte[]> purgeBlobGranules(byte[] beginKey, byte[] endKey, long purgeVersion,
boolean force, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'purgeBlobGranules'");
}
@Override
public CompletableFuture<Void> waitPurgeGranulesComplete(byte[] purgeKey, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'waitPurgeGranulesComplete'");
}
@Override
public CompletableFuture<Boolean> blobbifyRange(byte[] beginKey, byte[] endKey, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'blobbifyRange'");
}
@Override
public CompletableFuture<Boolean> blobbifyRangeBlocking(byte[] beginKey, byte[] endKey, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'blobbifyRangeBlocking'");
}
@Override
public CompletableFuture<Boolean> unblobbifyRange(byte[] beginKey, byte[] endKey, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'unblobbifyRange'");
}
@Override
public CompletableFuture<KeyRangeArrayResult> listBlobbifiedRanges(byte[] beginKey, byte[] endKey,
int rangeLimit, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'listBlobbifiedRanges'");
}
@Override
public CompletableFuture<Long> verifyBlobRange(byte[] beginKey, byte[] endKey, long version, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'verifyBlobRange'");
}
@Override
public CompletableFuture<Boolean> flushBlobRange(byte[] beginKey, byte[] endKey, boolean compact,
long version, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'flushBlobRange'");
}
@Override
public <T> T read(Function<? super ReadTransaction, T> retryable, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'read'");
}
@Override
public <T> CompletableFuture<T> readAsync(
Function<? super ReadTransaction, ? extends CompletableFuture<T>> retryable, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'readAsync'");
}
@Override
public <T> T run(Function<? super Transaction, T> retryable, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'run'");
}
@Override
public <T> CompletableFuture<T> runAsync(
Function<? super Transaction, ? extends CompletableFuture<T>> retryable, Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'runAsync'");
}
@Override
public CompletableFuture<byte[]> getClientStatus(Executor e) {
throw new UnsupportedOperationException("Unimplemented method 'getClientStatus'");
}
};
}
@ParameterizedTest
@EnumSource(StreamingMode.class)
void testRangeScansWorkWithoutRowLimit(StreamingMode mode) throws Exception {
/*
* Test that the Range scan will return all the rows without the row limit.
*/
List<Map.Entry<byte[], byte[]>> data = new ArrayList<>();
for (int i = 0; i < 10; i++) {
data.add(new AbstractMap.SimpleEntry<>(("apple" + i).getBytes(), ("crunchy" + i).getBytes()));
}
try (Database db = makeFakeDatabase(data)) {
try (Transaction tr = db.createTransaction()) {
byte[] val = tr.get("apple4".getBytes()).join();
Assertions.assertNotNull(val, "Missing entry for 'apple4'!");
Assertions.assertArrayEquals(val, "crunchy4".getBytes(), "incorrect entry for 'apple4'~");
// now do a range scan on the whole data set
AsyncIterable<KeyValue> iter = tr.getRange("a".getBytes(), "b".getBytes(), 0, false, mode);
List<KeyValue> kvs = iter.asList().join();
for (Map.Entry<byte[], byte[]> entry : data) {
boolean found = false;
for (KeyValue actualKv : kvs) {
if (ByteArrayUtil.compareTo(entry.getKey(), 0, entry.getKey().length, actualKv.getKey(), 0,
actualKv.getKey().length) == 0) {
String errorMsg =
String.format("Incorrect value for key '%s'; Expected: <%s>, Actual: <%s>",
new String(entry.getKey()), new String(entry.getValue()),
new String(actualKv.getValue()));
Assertions.assertEquals(
0,
ByteArrayUtil.compareTo(entry.getValue(), 0, entry.getValue().length,
actualKv.getValue(), 0, actualKv.getValue().length),
errorMsg);
found = true;
break;
}
}
Assertions.assertTrue(found, "Did not find key '" + new String(entry.getKey()) + "'");
}
}
}
}
@ParameterizedTest
@EnumSource(StreamingMode.class)
void testRangeScansWorkWithRowLimit(StreamingMode mode) throws Exception {
/*
* Basic test to make sure that we don't ask for too many records or return too
* much data when exercising the row limit
*/
List<Map.Entry<byte[], byte[]>> data = new ArrayList<>();
for (int i = 0; i < 10; i++) {
data.add(new AbstractMap.SimpleEntry<>(("apple" + i).getBytes(), ("crunchy" + i).getBytes()));
}
try (Database db = makeFakeDatabase(data)) {
try (Transaction tr = db.createTransaction()) {
byte[] val = tr.get("apple4".getBytes()).join();
Assertions.assertNotNull(val, "Missing entry for 'apple4'!");
Assertions.assertArrayEquals(val, "crunchy4".getBytes(), "incorrect entry for 'apple4'~");
// now do a range scan on the whole data set
int limit = 3;
AsyncIterable<KeyValue> iter = tr.getRange("a".getBytes(), "b".getBytes(), limit, false, mode);
List<KeyValue> kvs = iter.asList().join();
Assertions.assertEquals(limit, kvs.size(), "incorrect number of kvs returned!");
int cnt = 0;
for (Map.Entry<byte[], byte[]> entry : data) {
boolean found = false;
for (KeyValue actualKv : kvs) {
if (ByteArrayUtil.compareTo(entry.getKey(), 0, entry.getKey().length, actualKv.getKey(), 0,
actualKv.getKey().length) == 0) {
String errorMsg = String.format("Incorrect value for key '%s'; Expected: <%s>, Actual: <%s>",
new String(entry.getKey()), new String(entry.getValue()),
new String(actualKv.getValue()));
Assertions.assertEquals(
0,
ByteArrayUtil.compareTo(entry.getValue(), 0, entry.getValue().length,
actualKv.getValue(), 0, actualKv.getValue().length),
errorMsg);
found = true;
break;
}
}
Assertions.assertTrue(found, "Did not find key '" + new String(entry.getKey()) + "'");
cnt++;
if (cnt == limit) {
break;
}
}
Assertions.assertEquals(1, ((FakeFDBTransaction)tr).getNumRangeCalls(),
"Did not do the correct number of range requests");
}
}
}
@ParameterizedTest
@EnumSource(StreamingMode.class)
void testRangeScansWorkWithoutRowLimitReversed(StreamingMode mode) throws Exception {
/*
* Test that the Range scan will return all the rows without the row limit.
*/
List<Map.Entry<byte[], byte[]>> data = new ArrayList<>();
for (int i = 0; i < 10; i++) {
data.add(new AbstractMap.SimpleEntry<>(("apple" + i).getBytes(), ("crunchy" + i).getBytes()));
}
try (Database db = makeFakeDatabase(data)) {
try (Transaction tr = db.createTransaction()) {
byte[] val = tr.get("apple4".getBytes()).join();
Assertions.assertNotNull(val, "Missing entry for 'apple4'!");
Assertions.assertArrayEquals(val, "crunchy4".getBytes(), "incorrect entry for 'apple4'~");
// now do a range scan on the whole data set
AsyncIterable<KeyValue> iter = tr.getRange("a".getBytes(), "b".getBytes(), 0, true, mode);
List<KeyValue> kvs = iter.asList().join();
for (Map.Entry<byte[], byte[]> entry : data) {
boolean found = false;
for (KeyValue actualKv : kvs) {
if (ByteArrayUtil.compareTo(entry.getKey(), 0, entry.getKey().length, actualKv.getKey(), 0,
actualKv.getKey().length) == 0) {
String errorMsg = String.format("Incorrect value for key '%s'; Expected: <%s>, Actual: <%s>",
new String(entry.getKey()), new String(entry.getValue()),
new String(actualKv.getValue()));
Assertions.assertEquals(
0,
ByteArrayUtil.compareTo(entry.getValue(), 0, entry.getValue().length,
actualKv.getValue(), 0, actualKv.getValue().length),
errorMsg);
found = true;
break;
}
}
Assertions.assertTrue(found, "Did not find key '" + new String(entry.getKey()) + "'");
}
}
}
}
@ParameterizedTest
@EnumSource(StreamingMode.class)
void testRangeScansWorkWithRowLimitReversed(StreamingMode mode) throws Exception {
/*
* Basic test to make sure that we don't ask for too many records or return too
* much data when exercising the row limit
*/
NavigableMap<byte[], byte[]> data = new TreeMap<>(ByteArrayUtil.comparator());
for (int i = 0; i < 10; i++) {
data.put(("apple" + i).getBytes(), ("crunchy" + i).getBytes());
}
try (Database db = makeFakeDatabase(new ArrayList<>(data.entrySet()))) {
try (Transaction tr = db.createTransaction()) {
byte[] val = tr.get("apple4".getBytes()).join();
Assertions.assertNotNull(val, "Missing entry for 'apple4'!");
Assertions.assertArrayEquals(val, "crunchy4".getBytes(), "incorrect entry for 'apple4'~");
// now do a range scan on the whole data set
int limit = 3;
AsyncIterable<KeyValue> iter = tr.getRange("a".getBytes(), "b".getBytes(), limit, true, mode);
List<KeyValue> kvs = iter.asList().join();
Assertions.assertEquals(limit, kvs.size(), "incorrect number of kvs returned!");
int cnt = 0;
for (Map.Entry<byte[], byte[]> entry : data.descendingMap().entrySet()) {
boolean found = false;
for (KeyValue actualKv : kvs) {
if (ByteArrayUtil.compareTo(entry.getKey(), 0, entry.getKey().length, actualKv.getKey(), 0,
actualKv.getKey().length) == 0) {
String errorMsg = String.format("Incorrect value for key '%s'; Expected: <%s>, Actual: <%s>",
new String(entry.getKey()), new String(entry.getValue()),
new String(actualKv.getValue()));
Assertions.assertEquals(
0,
ByteArrayUtil.compareTo(entry.getValue(), 0, entry.getValue().length,
actualKv.getValue(), 0, actualKv.getValue().length),
errorMsg);
found = true;
break;
}
}
Assertions.assertTrue(found, "Did not find key '" + new String(entry.getKey()) + "'");
cnt++;
if (cnt == limit) {
break;
}
}
Assertions.assertEquals(1, ((FakeFDBTransaction)tr).getNumRangeCalls(),
"Did not do the correct number of range requests");
}
}
}
}