/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. 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 co.elastic.apm.agent.sdk.weakconcurrent;

import co.elastic.apm.agent.sdk.weakconcurrent.WeakKeySoftValueLoadingCache;
import org.junit.jupiter.api.Test;

import static org.assertj.core.api.Assertions.assertThat;

class WeakKeySoftValueLoadingCacheTest {

    @Test
    void testGet() {
        WeakKeySoftValueLoadingCache<String, String> cache = new WeakKeySoftValueLoadingCache<>(String::toUpperCase);
        String value = cache.get("foo");
        assertThat(value).isEqualTo("FOO");
        assertThat(cache.get("foo")).isSameAs(value);
    }

    @Test
    void testGetNull() {
        WeakKeySoftValueLoadingCache<String, String> cache = new WeakKeySoftValueLoadingCache<>(key -> null);
        assertThat(cache.get("foo")).isNull();
    }

}
