mode/type/cluster/core/src/test/java/org/apache/shardingsphere/mode/manager/cluster/coordinator/registry/status/storage/watcher/StorageNodeStateChangedWatcherTest.java

/*
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 * 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
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 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
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package org.apache.shardingsphere.mode.manager.cluster.coordinator.registry.status.storage.watcher;

import org.apache.shardingsphere.infra.state.datasource.DataSourceState;
import org.apache.shardingsphere.infra.rule.event.GovernanceEvent;
import org.apache.shardingsphere.mode.manager.cluster.coordinator.registry.status.storage.event.StorageNodeChangedEvent;
import org.apache.shardingsphere.mode.event.storage.StorageNodeRole;
import org.apache.shardingsphere.mode.event.DataChangedEvent;
import org.apache.shardingsphere.mode.event.DataChangedEvent.Type;
import org.junit.jupiter.api.Test;

import java.util.Optional;

import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;

class StorageNodeStateChangedWatcherTest {
    
    @Test
    void assertCreateEnabledStorageNodeChangedEvent() {
        Optional<GovernanceEvent> actual = new StorageNodeStateChangedWatcher().createGovernanceEvent(
                new DataChangedEvent("/nodes/storage_nodes/replica_query_db.readwrite_ds.replica_ds_0", "role: MEMBER\nstatus: ENABLED\n", Type.ADDED));
        assertTrue(actual.isPresent());
        StorageNodeChangedEvent actualEvent = (StorageNodeChangedEvent) actual.get();
        assertThat(actualEvent.getQualifiedDataSource().getDatabaseName(), is("replica_query_db"));
        assertThat(actualEvent.getQualifiedDataSource().getGroupName(), is("readwrite_ds"));
        assertThat(actualEvent.getQualifiedDataSource().getDataSourceName(), is("replica_ds_0"));
        assertThat(actualEvent.getDataSource().getRole(), is(StorageNodeRole.MEMBER));
        assertThat(actualEvent.getDataSource().getStatus(), is(DataSourceState.ENABLED));
    }
    
    @Test
    void assertCreateDisabledStorageNodeChangedEvent() {
        Optional<GovernanceEvent> actual = new StorageNodeStateChangedWatcher().createGovernanceEvent(
                new DataChangedEvent("/nodes/storage_nodes/replica_query_db.readwrite_ds.replica_ds_0", "role: MEMBER\nstatus: DISABLED\n", Type.DELETED));
        assertTrue(actual.isPresent());
        StorageNodeChangedEvent actualEvent = (StorageNodeChangedEvent) actual.get();
        assertThat(actualEvent.getQualifiedDataSource().getDatabaseName(), is("replica_query_db"));
        assertThat(actualEvent.getQualifiedDataSource().getGroupName(), is("readwrite_ds"));
        assertThat(actualEvent.getQualifiedDataSource().getDataSourceName(), is("replica_ds_0"));
        assertThat(actualEvent.getDataSource().getRole(), is(StorageNodeRole.MEMBER));
        assertThat(actualEvent.getDataSource().getStatus(), is(DataSourceState.DISABLED));
    }
    
    @Test
    void assertCreateEmptyEvent() {
        Optional<GovernanceEvent> actual = new StorageNodeStateChangedWatcher().createGovernanceEvent(
                new DataChangedEvent("/nodes/storage_nodes/replica_query_db.readwrite_ds.replica_ds_0", "", Type.ADDED));
        assertFalse(actual.isPresent());
    }
}