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;
  
  import org.apache.kafka.clients.consumer.ConsumerRecord;
  import org.apache.kafka.streams.TopologyTestDriver.KeyValueStoreFacade;
  import org.apache.kafka.streams.processor.StateStore;
  import org.apache.kafka.streams.processor.StateStoreContext;
  import org.apache.kafka.streams.state.TimestampedKeyValueStore;
  import org.apache.kafka.streams.state.ValueAndTimestamp;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import static java.util.Arrays.asList;
  import static org.hamcrest.CoreMatchers.is;
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.mockito.Mockito.doReturn;
  import static org.mockito.Mockito.mock;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  public class KeyValueStoreFacadeTest {
      @SuppressWarnings("unchecked")
      private final TimestampedKeyValueStore<String, String> mockedKeyValueTimestampStore = mock(TimestampedKeyValueStore.class);
  
      private KeyValueStoreFacade<String, String> keyValueStoreFacade;
  
      @BeforeEach
      public void setup() {
          keyValueStoreFacade = new KeyValueStoreFacade<>(mockedKeyValueTimestampStore);
      }
  
      @Test
      public void shouldForwardInit() {
          final StateStoreContext context = mock(StateStoreContext.class);
          final StateStore store = mock(StateStore.class);
  
          keyValueStoreFacade.init(context, store);
          verify(mockedKeyValueTimestampStore).init(context, store);
      }
  
      @Test
      public void shouldPutWithUnknownTimestamp() {
          keyValueStoreFacade.put("key", "value");
          verify(mockedKeyValueTimestampStore)
              .put("key", ValueAndTimestamp.make("value", ConsumerRecord.NO_TIMESTAMP));
      }
  
      @Test
      public void shouldPutIfAbsentWithUnknownTimestamp() {
          doReturn(null, ValueAndTimestamp.make("oldValue", 42L))
              .when(mockedKeyValueTimestampStore)
              .putIfAbsent("key", ValueAndTimestamp.make("value", ConsumerRecord.NO_TIMESTAMP));
  
          assertNull(keyValueStoreFacade.putIfAbsent("key", "value"));
          assertThat(keyValueStoreFacade.putIfAbsent("key", "value"), is("oldValue"));
          verify(mockedKeyValueTimestampStore, times(2))
              .putIfAbsent("key", ValueAndTimestamp.make("value", ConsumerRecord.NO_TIMESTAMP));
      }
  
      @Test
      public void shouldPutAllWithUnknownTimestamp() {
          keyValueStoreFacade.putAll(asList(
              KeyValue.pair("key1", "value1"),
              KeyValue.pair("key2", "value2")
          ));
          verify(mockedKeyValueTimestampStore)
              .put("key1", ValueAndTimestamp.make("value1", ConsumerRecord.NO_TIMESTAMP));
          verify(mockedKeyValueTimestampStore)
              .put("key2", ValueAndTimestamp.make("value2", ConsumerRecord.NO_TIMESTAMP));
      }
  
      @Test
      public void shouldDeleteAndReturnPlainValue() {
          doReturn(null, ValueAndTimestamp.make("oldValue", 42L))
              .when(mockedKeyValueTimestampStore).delete("key");
  
          assertNull(keyValueStoreFacade.delete("key"));
          assertThat(keyValueStoreFacade.delete("key"), is("oldValue"));
          verify(mockedKeyValueTimestampStore, times(2)).delete("key");
      }
  
      @Test
      public void shouldForwardFlush() {
          keyValueStoreFacade.flush();
          verify(mockedKeyValueTimestampStore).flush();
      }
  
      @Test
      public void shouldForwardClose() {
          keyValueStoreFacade.close();
          verify(mockedKeyValueTimestampStore).close();
      }
  
      @Test
      public void shouldReturnName() {
          when(mockedKeyValueTimestampStore.name()).thenReturn("name");
  
          assertThat(keyValueStoreFacade.name(), is("name"));
          verify(mockedKeyValueTimestampStore).name();
      }
  
      @Test
      public void shouldReturnIsPersistent() {
          when(mockedKeyValueTimestampStore.persistent())
              .thenReturn(true, false);
  
          assertThat(keyValueStoreFacade.persistent(), is(true));
          assertThat(keyValueStoreFacade.persistent(), is(false));
          verify(mockedKeyValueTimestampStore, times(2)).persistent();
      }
  
      @Test
      public void shouldReturnIsOpen() {
          when(mockedKeyValueTimestampStore.isOpen())
              .thenReturn(true, false);
  
          assertThat(keyValueStoreFacade.isOpen(), is(true));
          assertThat(keyValueStoreFacade.isOpen(), is(false));
          verify(mockedKeyValueTimestampStore, times(2)).isOpen();
      }
  }
  