/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more 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
 *
 * 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.apache.pulsar.functions.instance;

import static org.mockito.Mockito.mock;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;

import org.apache.pulsar.functions.api.Function;
import org.apache.pulsar.functions.api.Record;
import org.testng.annotations.Test;

public class JavaInstanceTest {

    /**
     * Verify that be able to run lambda functions.
     * @throws Exception
     */
    @Test
    public void testLambda() {
        JavaInstance instance = new JavaInstance(
            mock(ContextImpl.class),
            (Function<String, String>) (input, context) -> input + "-lambda");
        String testString = "ABC123";
        JavaExecutionResult result = instance.handleMessage(mock(Record.class), testString);
        assertNotNull(result.getResult());
        assertEquals(new String(testString + "-lambda"), result.getResult());
        instance.close();
    }
}
