gremlin-core/src/test/java/org/apache/tinkerpop/gremlin/jsr223/SingleScriptEngineManagerTest.java

/*
 * 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.tinkerpop.gremlin.jsr223;

import org.junit.Test;

import static org.junit.Assert.assertSame;

/**
 * @author Stephen Mallette (http://stephen.genoprime.com)
 */
public class SingleScriptEngineManagerTest {
    private static final GremlinScriptEngineManager mgr = SingleGremlinScriptEngineManager.instance();

    @Test
    public void shouldGetSameInstance() {
        assertSame(mgr, SingleGremlinScriptEngineManager.instance());
        assertSame(mgr, SingleGremlinScriptEngineManager.instance());
        assertSame(mgr, SingleGremlinScriptEngineManager.instance());
        assertSame(mgr, SingleGremlinScriptEngineManager.instance());
        assertSame(mgr, SingleGremlinScriptEngineManager.instance());
    }

    @Test(expected = IllegalArgumentException.class)
    public void shouldNotGetGremlinScriptEngineAsItIsNotRegistered() {
        mgr.getEngineByName("gremlin-groovy");
    }
}