AbstractKeyspaceOperationCqlGeneratorTest.java

/*
 * Copyright 2016-2017 the original author or authors.
 *
 * Licensed 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.springframework.cassandra.core.cql.generator;

import java.util.UUID;

import org.apache.commons.lang3.StringUtils;
import org.junit.Test;
import org.springframework.cassandra.core.keyspace.KeyspaceActionSpecification;
import org.springframework.cassandra.core.keyspace.TableNameSpecification;

/**
 * Useful test class that specifies just about as much as you can for a CQL generation test. Intended to be extended by
 * classes that contain methods annotated with {@link Test}. Everything is public because this is a test class with no
 * need for encapsulation, and it makes for easier reuse in other tests like integration tests (hint hint).
 *
 * @author Matthew T. Adams
 * @param <S> The type of the {@link TableNameSpecification}
 * @param <G> The type of the {@link TableNameCqlGenerator}
 */
public abstract class AbstractKeyspaceOperationCqlGeneratorTest<S extends KeyspaceActionSpecification<?>, G extends KeyspaceNameCqlGenerator<?>> {

	public abstract S specification();

	public abstract G generator();

	public String keyspace;
	public S specification;
	public G generator;
	public String cql;

	public void prepare() {
		this.specification = specification();
		this.generator = generator();
		this.cql = generateCql();
	}

	public String generateCql() {
		return generator.toCql();
	}

	public String randomKeyspaceName() {
		String name = getClass().getSimpleName() + "_" + UUID.randomUUID().toString().replace("-", "");
		return StringUtils.left(name, 47).toLowerCase();
	}
}