cassandra-four-zero/src/test/java/org/apache/cassandra/spark/reader/PartitionKeyTests.java

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 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *
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package org.apache.cassandra.spark.reader;

import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import org.junit.Test;

import org.apache.cassandra.bridge.CassandraBridgeImplementation;
import org.apache.cassandra.db.marshal.AbstractType;
import org.apache.cassandra.db.marshal.CompositeType;
import org.apache.cassandra.spark.data.CqlTable;
import org.apache.cassandra.spark.data.CqlType;
import org.apache.cassandra.spark.utils.ComparisonUtils;
import org.apache.cassandra.spark.utils.test.TestSchema;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.quicktheories.QuickTheory.qt;
import static org.quicktheories.generators.SourceDSL.arbitrary;

public class PartitionKeyTests
{
    private static final CassandraBridgeImplementation BRIDGE = new CassandraBridgeImplementation();

    @Test
    @SuppressWarnings("static-access")
    public void testBuildPartitionKey()
    {
        qt().forAll(arbitrary().pick(BRIDGE.supportedTypes())).checkAssert(partitionKeyType -> {
            CqlTable table = TestSchema.builder()
                                       .withPartitionKey("a", partitionKeyType)
                                       .withClusteringKey("b", BRIDGE.aInt())
                                       .withColumn("c", BRIDGE.aInt())
                                       .build()
                                       .buildTable();
            Object value = partitionKeyType.randomValue(100);
            String string = ((CqlType) partitionKeyType).serializer().toString(value);
            ByteBuffer buffer = BRIDGE.buildPartitionKey(table, Collections.singletonList(string));
            assertTrue(ComparisonUtils.equals(value, partitionKeyType.toTestRowType(partitionKeyType.deserialize(buffer))));
        });
    }

    @Test
    @SuppressWarnings("static-access")
    public void testBuildCompositePartitionKey()
    {
        qt().forAll(arbitrary().pick(BRIDGE.supportedTypes())).checkAssert(partitionKeyType -> {
            CqlTable table = TestSchema.builder()
                                       .withPartitionKey("a", BRIDGE.aInt())
                                       .withPartitionKey("b", partitionKeyType)
                                       .withPartitionKey("c", BRIDGE.text())
                                       .withClusteringKey("d", BRIDGE.aInt())
                                       .withColumn("e", BRIDGE.aInt())
                                       .build()
                                       .buildTable();
            List<AbstractType<?>> partitionKeyColumnTypes = BRIDGE.partitionKeyColumnTypes(table);
            CompositeType compositeType = CompositeType.getInstance(partitionKeyColumnTypes);

            int columnA = (int) BRIDGE.aInt().randomValue(1024);
            Object columnB = partitionKeyType.randomValue(1024);
            String columnBString = ((CqlType) partitionKeyType).serializer().toString(columnB);
            String columnC = (String) BRIDGE.text().randomValue(1024);

            ByteBuffer buffer = BRIDGE.buildPartitionKey(table, Arrays.asList(Integer.toString(columnA), columnBString, columnC));
            ByteBuffer[] buffers = compositeType.split(buffer);
            assertEquals(3, buffers.length);

            assertEquals(columnA, buffers[0].getInt());
            assertEquals(columnB, partitionKeyType.toTestRowType(partitionKeyType.deserialize(buffers[1])));
            assertEquals(columnC, BRIDGE.text().toTestRowType(BRIDGE.text().deserialize(buffers[2])));
        });
    }
}