/*
 * 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.shardingsphere.readwritesplitting.route.standard.filter.type;

import org.apache.shardingsphere.infra.algorithm.loadbalancer.random.RandomLoadBalanceAlgorithm;
import org.apache.shardingsphere.readwritesplitting.config.rule.ReadwriteSplittingDataSourceGroupRuleConfiguration;
import org.apache.shardingsphere.readwritesplitting.rule.ReadwriteSplittingDataSourceGroupRule;
import org.apache.shardingsphere.readwritesplitting.transaction.TransactionalReadQueryStrategy;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.util.Arrays;
import java.util.Collections;

import static org.hamcrest.Matchers.is;
import static org.hamcrest.MatcherAssert.assertThat;

class DisabledReadDataSourcesFilterTest {
    
    private ReadwriteSplittingDataSourceGroupRule rule;
    
    @BeforeEach
    void setUp() {
        rule = new ReadwriteSplittingDataSourceGroupRule(
                new ReadwriteSplittingDataSourceGroupRuleConfiguration("test_pr", "write_ds", Arrays.asList("read_ds_0", "read_ds_1"), null),
                TransactionalReadQueryStrategy.DYNAMIC, new RandomLoadBalanceAlgorithm());
    }
    
    @Test
    void assertGetReadDataSourceNamesWithoutDisabledDataSourceNames() {
        assertThat(new DisabledReadDataSourcesFilter().filter(rule, Arrays.asList("read_ds_0", "read_ds_1")), is(Arrays.asList("read_ds_0", "read_ds_1")));
    }
    
    @Test
    void assertDisableDataSource() {
        rule.disableDataSource("read_ds_0");
        assertThat(new DisabledReadDataSourcesFilter().filter(rule, Arrays.asList("read_ds_0", "read_ds_1")), is(Collections.singletonList("read_ds_1")));
    }
    
    @Test
    void assertEnableDataSource() {
        rule.disableDataSource("read_ds_0");
        rule.enableDataSource("read_ds_0");
        assertThat(new DisabledReadDataSourcesFilter().filter(rule, Arrays.asList("read_ds_0", "read_ds_1")), is(Arrays.asList("read_ds_0", "read_ds_1")));
    }
    
    @Test
    void assertGetEnabledReplicaDataSources() {
        rule.disableDataSource("read_ds_0");
        assertThat(new DisabledReadDataSourcesFilter().filter(rule, Arrays.asList("read_ds_0", "read_ds_1")), is(Collections.singletonList("read_ds_1")));
    }
}
