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 * 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
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package org.apache.cassandra.schema;

import java.util.Collections;

import org.junit.Assert;
import org.junit.Test;

import org.apache.cassandra.cql3.ColumnIdentifier;
import org.apache.cassandra.cql3.statements.schema.IndexTarget;
import org.apache.cassandra.db.marshal.UTF8Type;
import org.apache.cassandra.exceptions.ConfigurationException;
import org.apache.cassandra.index.Index;
import org.apache.cassandra.utils.ClassLoadingTestNonAssignable;
import org.apache.cassandra.utils.ClassLoadingTestSupport;

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

public class IndexMetadataTest
{
    @Test
    public void testGetDefaultIndexName()
    {
        Assert.assertEquals("aB4__idx", IndexMetadata.generateDefaultIndexName("a B-4@!_+"));
        Assert.assertEquals("34_Ddd_F6_idx", IndexMetadata.generateDefaultIndexName("34_()Ddd", new ColumnIdentifier("#F%6*", true)));
    }

    @Test
    public void testRejectsNonCustomIndexWithoutInitializing()
    {
        TableMetadata table = TableMetadata.builder("ks", "tbl")
                                           .addPartitionKeyColumn("pk", UTF8Type.instance)
                                           .build();
        IndexMetadata index = IndexMetadata.fromSchemaMetadata("idx",
                                                               IndexMetadata.Kind.CUSTOM,
                                                               Collections.singletonMap(IndexTarget.CUSTOM_INDEX_OPTION_NAME,
                                                                                        ClassLoadingTestNonAssignable.class.getName()));

        ClassLoadingTestSupport.assertNotInitialized(ClassLoadingTestNonAssignable.class);

        assertThatThrownBy(() -> index.validate(table))
        .isInstanceOf(ConfigurationException.class)
        .hasMessageContaining("must extend or implement " + Index.class.getName());

        assertThat(ClassLoadingTestSupport.wasInitialized(ClassLoadingTestNonAssignable.class)).isFalse();
    }
}
