content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements. See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.apache.kafka.streams.state.internals;
  
  import org.apache.kafka.common.header.internals.RecordHeaders;
  import org.apache.kafka.common.utils.Bytes;
  import org.apache.kafka.streams.kstream.Windowed;
  import org.apache.kafka.streams.processor.internals.ProcessorContextImpl;
  import org.apache.kafka.streams.processor.internals.ProcessorRecordContext;
  import org.apache.kafka.streams.query.Position;
  import org.apache.kafka.streams.state.KeyValueIterator;
  import org.apache.kafka.streams.state.WindowStore;
  import org.apache.kafka.streams.state.WindowStoreIterator;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.mockito.junit.jupiter.MockitoSettings;
  import org.mockito.quality.Strictness;
  
  import static java.time.Instant.ofEpochMilli;
  import static org.apache.kafka.common.utils.Utils.mkEntry;
  import static org.apache.kafka.common.utils.Utils.mkMap;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  @MockitoSettings(strictness = Strictness.STRICT_STUBS)
  public class ChangeLoggingTimestampedWindowBytesStoreTest {
  
      private final byte[] value = {0};
      private final byte[] valueAndTimestamp = {0, 0, 0, 0, 0, 0, 0, 42, 0};
      private final Bytes bytesKey = Bytes.wrap(value);
  
      @Mock
      private WindowStore<Bytes, byte[]> inner;
      @Mock
      private ProcessorContextImpl context;
      private ChangeLoggingTimestampedWindowBytesStore store;
  
      private static final Position POSITION = Position.fromMap(mkMap(mkEntry("", mkMap(mkEntry(0, 1L)))));
  
      @BeforeEach
      public void setUp() {
          store = new ChangeLoggingTimestampedWindowBytesStore(inner, false);
          store.init(context, store);
      }
  
      @AfterEach
      public void tearDown() {
          verify(inner).init(context, store);
      }
  
      @Test
      public void shouldDelegateInit() {
          // testing the combination of setUp and tearDown
      }
  
      @Test
      public void shouldLogPuts() {
          final Bytes key = WindowKeySchema.toStoreKeyBinary(bytesKey, 0, 0);
          when(inner.getPosition()).thenReturn(Position.emptyPosition());
          when(context.recordContext()).thenReturn(new ProcessorRecordContext(0, 0, 0, "topic", new RecordHeaders()));
  
          store.put(bytesKey, valueAndTimestamp, context.recordContext().timestamp());
  
          verify(inner).put(bytesKey, valueAndTimestamp, 0);
          verify(context).logChange(store.name(), key, value, 42, Position.emptyPosition());
      }
  
      @Test
      public void shouldLogPutsWithPosition() {
          final Bytes key = WindowKeySchema.toStoreKeyBinary(bytesKey, 0, 0);
          when(inner.getPosition()).thenReturn(POSITION);
          when(context.recordContext()).thenReturn(new ProcessorRecordContext(0, 0, 0, "topic", new RecordHeaders()));
  
          store.put(bytesKey, valueAndTimestamp, context.recordContext().timestamp());
  
          verify(inner).put(bytesKey, valueAndTimestamp, 0);
          verify(context).logChange(store.name(), key, value, 42, POSITION);
      }
  
      @SuppressWarnings({"resource", "unused"})
      @Test
      public void shouldDelegateToUnderlyingStoreWhenFetching() {
          try (final WindowStoreIterator<byte[]> unused = store.fetch(bytesKey, ofEpochMilli(0), ofEpochMilli(10))) {
              verify(inner).fetch(bytesKey, 0, 10);
          }
      }
  
      @SuppressWarnings({"resource", "unused"})
      @Test
      public void shouldDelegateToUnderlyingStoreWhenFetchingRange() {
          try (final KeyValueIterator<Windowed<Bytes>, byte[]> unused = store.fetch(bytesKey, bytesKey, ofEpochMilli(0), ofEpochMilli(1))) {
              verify(inner).fetch(bytesKey, bytesKey, 0, 1);
          }
      }
  
      @Test
      public void shouldRetainDuplicatesWhenSet() {
          store = new ChangeLoggingTimestampedWindowBytesStore(inner, true);
          store.init(context, store);
          final Bytes key1 = WindowKeySchema.toStoreKeyBinary(bytesKey, 0, 1);
          final Bytes key2 = WindowKeySchema.toStoreKeyBinary(bytesKey, 0, 2);
          when(inner.getPosition()).thenReturn(Position.emptyPosition());
          when(context.recordContext()).thenReturn(new ProcessorRecordContext(0, 0, 0, "topic", new RecordHeaders()));
  
          store.put(bytesKey, valueAndTimestamp, context.recordContext().timestamp());
          store.put(bytesKey, valueAndTimestamp, context.recordContext().timestamp());
  
          verify(inner, times(2)).put(bytesKey, valueAndTimestamp, 0);
          verify(context).logChange(store.name(), key1, value, 42L, Position.emptyPosition());
          verify(context).logChange(store.name(), key2, value, 42L, Position.emptyPosition());
      }
  
  }
  