geode-redis/src/integrationTest/java/org/apache/geode/redis/internal/executor/string/AbstractGetIntegrationTest.java

/*
 * 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.geode.redis.internal.executor.string;

import static org.apache.geode.redis.internal.RedisConstants.ERROR_WRONG_TYPE;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.Protocol;

import org.apache.geode.test.awaitility.GeodeAwaitility;
import org.apache.geode.test.dunit.rules.RedisPortSupplier;

public abstract class AbstractGetIntegrationTest implements RedisPortSupplier {

  private Jedis jedis;
  private static final int REDIS_CLIENT_TIMEOUT =
      Math.toIntExact(GeodeAwaitility.getTimeout().toMillis());

  @Before
  public void setUp() {
    jedis = new Jedis("localhost", getPort(), REDIS_CLIENT_TIMEOUT);
  }

  @After
  public void tearDown() {
    jedis.flushAll();
    jedis.close();
  }

  @Test
  public void givenKeyNotProvided_returnsWrongNumberOfArgumentsError() {
    assertThatThrownBy(() -> jedis.sendCommand(Protocol.Command.GET))
        .hasMessageContaining("ERR wrong number of arguments for 'get' command");
  }

  @Test
  public void givenMoreThanTwoArguments_returnsWrongNumberOfArgumentsError() {
    assertThatThrownBy(() -> jedis.sendCommand(Protocol.Command.GET, "key", "extraArg"))
        .hasMessageContaining("ERR wrong number of arguments for 'get' command");
  }

  @Test
  public void testGET_shouldReturnValueOfKey_givenValueIsAString() {
    String key = "key";
    String value = "value";

    String result = jedis.get(key);
    assertThat(result).isNull();

    jedis.set(key, value);
    result = jedis.get(key);
    assertThat(result).isEqualTo(value);
  }

  @Test
  public void testGET_shouldReturnNil_givenKeyDoesNotExist() {
    String key = "this key does not exist";

    String result = jedis.get(key);
    assertThat(result).isNull();
  }

  @Test
  public void testGET_shouldReturnEmptyString_givenKeyIsEmpty() {
    String key = "emptyKey";
    jedis.set(key, "");

    String result = jedis.get(key);
    assertThat(result).isEmpty();
  }

  @Test
  public void testGET_shouldThrowJedisDataExceptionError_givenValueIsNotAString() {
    String key = "key";
    String field = "field";
    String member = "member";

    jedis.sadd(key, field, member);
    assertThatThrownBy(() -> jedis.get(key)).hasMessageContaining(ERROR_WRONG_TYPE);
  }
}