UniqueResultContractTest.java example

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/*
 * Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
 *
 * 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 com.querydsl.collections;

import org.junit.Test;

import com.querydsl.core.NonUniqueResultException;
import com.querydsl.core.types.Expression;

public class UniqueResultContractTest extends AbstractQueryTest {

    @Test(expected = NonUniqueResultException.class)
    public void unique_result_throws_exception_on_multiple_results() {
        CollQueryFactory.from(cat, cats).where(cat.name.isNotNull()).fetchOne();
    }

    @Test
    public void uniqueResult_with_array() {
        CollQueryFactory.from(cat, cats).where(cat.name.isNotNull()).limit(1).select(new Expression[]{cat}).fetchOne();
    }

}