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* 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.apache.tinkerpop.gremlin.TestHelper;
import org.junit.Test;
import javax.script.Bindings;
import javax.script.ScriptContext;
import javax.script.ScriptException;
import javax.script.SimpleBindings;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import static org.apache.tinkerpop.gremlin.jsr223.GremlinScriptEngineSuite.ENGINE_TO_TEST;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.core.Is.is;
import static org.junit.Assert.assertEquals;
import static org.junit.Assume.assumeThat;
/**
* @author Stephen Mallette (http://stephen.genoprime.com)
*/
public class BindingsScriptEngineTest {
@Test
public void shouldIncludeGlobalBindings() throws ScriptException {
final GremlinScriptEngineManager manager = new DefaultGremlinScriptEngineManager();
final Bindings b = new SimpleBindings();
b.put("x", 1);
b.put("y", 2);
manager.addPlugin(BindingsGremlinPlugin.build().
bindings(b).create());
final GremlinScriptEngine engine = manager.getEngineByName(ENGINE_TO_TEST);
assertEquals(1, engine.eval("x"));
assertEquals(2, engine.eval("y"));
}
@Test
public void shouldRemoveGlobalBindings() throws Exception {
final DefaultGremlinScriptEngineManager manager = new DefaultGremlinScriptEngineManager();
manager.put("x", 100);
final GremlinScriptEngine engine1 = manager.getEngineByName(ENGINE_TO_TEST);
assertThat(engine1.getBindings(ScriptContext.GLOBAL_SCOPE).size(), is(1));
assertEquals(101, (int) engine1.eval("x+1"));
manager.getBindings().remove("x");
final GremlinScriptEngine engine2 = manager.getEngineByName(ENGINE_TO_TEST);
assertThat(engine2.getBindings(ScriptContext.GLOBAL_SCOPE).size(), is(0));
}
@Test
public void shouldAddLazyGlobalBindingsViaPlugin() throws Exception {
final Bindings bindings = new SimpleBindings();
bindings.put("x", 100);
final BindingsGremlinPlugin plugin = new BindingsGremlinPlugin(() -> bindings);
final DefaultGremlinScriptEngineManager manager = new DefaultGremlinScriptEngineManager();
manager.addPlugin(plugin);
final GremlinScriptEngine engine = manager.getEngineByName(ENGINE_TO_TEST);
assertThat(engine.getBindings(ScriptContext.GLOBAL_SCOPE).size(), is(1));
assertEquals(101, (int) engine.eval("x+1"));
}
@Test
public void shouldExtractGlobalBindingsAfterScriptExecution() throws Exception {
assumeThat("Only works with gremlin-groovy", ENGINE_TO_TEST, is("gremlin-groovy"));
final GremlinScriptEngineManager manager = new DefaultGremlinScriptEngineManager();
final Bindings b1 = new SimpleBindings();
b1.put("x", 1);
b1.put("y", 2);
manager.addPlugin(BindingsGremlinPlugin.build().bindings(b1).create());
final Bindings b2 = new SimpleBindings();
b2.put("x", 100);
b2.put("y", 200);
manager.addPlugin(BindingsGremlinPlugin.build().bindings(b2).create());
final File scriptFile = TestHelper.generateTempFileFromResource(BindingsScriptEngineTest.class, "bindings-init.groovy", ".groovy");
final List<String> files = new ArrayList<>();
files.add(scriptFile.getAbsolutePath());
manager.addPlugin(ScriptFileGremlinPlugin.build().files(files).create());
final GremlinScriptEngine engine = manager.getEngineByName(ENGINE_TO_TEST);
assertEquals(100, engine.eval("x"));
assertEquals(200, engine.eval("y"));
assertEquals(300, engine.eval("z"));
assertEquals(600, engine.eval("addItUp(z, addItUp(x,y))"));
assertEquals(300, engine.getBindings(ScriptContext.GLOBAL_SCOPE).get("z"));
assertThat(engine.getBindings(ScriptContext.ENGINE_SCOPE).containsKey("z"), is(false));
}
}