/*
 * 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.beam.sdk.io.kinesis;

import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.BDDMockito.given;

import com.amazonaws.services.kinesis.clientlibrary.lib.worker.InitialPositionInStream;
import com.amazonaws.services.kinesis.model.Shard;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;


/***
 */
@RunWith(MockitoJUnitRunner.class)
public class DynamicCheckpointGeneratorTest {

    @Mock
    private SimplifiedKinesisClient kinesisClient;
    @Mock
    private Shard shard1, shard2, shard3;

    @Test
    public void shouldMapAllShardsToCheckpoints() throws Exception {
        given(shard1.getShardId()).willReturn("shard-01");
        given(shard2.getShardId()).willReturn("shard-02");
        given(shard3.getShardId()).willReturn("shard-03");
        given(kinesisClient.listShards("stream")).willReturn(asList(shard1, shard2, shard3));

        StartingPoint startingPoint = new StartingPoint(InitialPositionInStream.LATEST);
        DynamicCheckpointGenerator underTest = new DynamicCheckpointGenerator("stream",
                startingPoint);

        KinesisReaderCheckpoint checkpoint = underTest.generate(kinesisClient);

        assertThat(checkpoint).hasSize(3);
    }
}