package com.thinkbiganalytics.spark.repl;
/*-
* #%L
* thinkbig-commons-spark-repl
* %%
* Copyright (C) 2017 ThinkBig Analytics
* %%
* 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.
* #L%
*/
import com.thinkbiganalytics.spark.SparkInterpreterBuilder;
import org.apache.spark.SparkConf;
import org.hamcrest.CoreMatchers;
import org.junit.Assert;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import java.io.PrintWriter;
import javax.script.ScriptException;
import scala.tools.nsc.Settings;
import scala.tools.nsc.interpreter.IMain;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {SparkScriptEngine.class, SparkScriptEngineTest.class})
public class SparkScriptEngineTest {
/**
* Expected thrown exception
*/
@Rule
public ExpectedException thrown = ExpectedException.none();
@Autowired
private SparkScriptEngine engine;
@Bean
public SparkConf sparkConf() {
SparkConf sparkConf = new SparkConf();
sparkConf.set("spark.driver.allowMultipleContexts", "true");
return sparkConf;
}
@Bean
public SparkInterpreterBuilder sparkInterpreterBuilder() {
return new SparkInterpreterBuilder() {
private Settings settings;
private PrintWriter printWriter;
private ClassLoader classLoader;
@Override
public SparkInterpreterBuilder withSettings(Settings param) {
this.settings = param;
return this;
}
@Override
public SparkInterpreterBuilder withPrintWriter(PrintWriter param) {
this.printWriter = param;
return this;
}
@Override
public SparkInterpreterBuilder withClassLoader(ClassLoader param) {
this.classLoader = param;
return this;
}
@Override
public IMain newInstance() {
return new IMain(settings, printWriter) {
@Override
public ClassLoader parentClassLoader() {
return classLoader;
}
@Override
public PrintWriter out() {
return printWriter;
}
};
}
};
}
/**
* Verify evaluating a script and returning a value.
*/
@Test
public void test() throws Exception {
Assert.assertEquals(3, engine.eval("new Integer(1 + 2)"));
}
/**
* Verify security exception for rule violation.
*/
@Test(expected = ScriptException.class)
public void testSecurity() throws Exception {
engine.eval("System.eval(\"true\")");
}
/**
* Verify security exception if comment in script.
*/
@Test(expected = ScriptException.class)
public void testSecurityWithComment() throws Exception {
engine.eval("System/*PAD*/.eval(\"true\")");
}
/**
* Verify security exception for multi-line scripts.
*/
@Test(expected = ScriptException.class)
public void testSecurityWithMultiline() throws Exception {
engine.eval("System\n.eval(\"true\")");
}
/**
* Verify evaluating a script with a compile error.
*/
@Test
public void testWithCompileError() throws Exception {
// Configure expected exception
thrown.expect(ScriptException.class);
thrown.expectMessage(CoreMatchers.startsWith("error: not found: value Method in <console> at line number 8"));
// Test evaluating
engine.eval("Method invalid");
}
/**
* Verify evaluating a script with an exception.
*/
@Test(expected = UnsupportedOperationException.class)
public void testWithException() throws Exception {
engine.eval("throw new UnsupportedOperationException()");
}
}