JDK_8169050_Test.java

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package jdk.nashorn.api.scripting.test;

import javax.script.ScriptEngine;
import javax.script.ScriptEngineManager;
import javax.script.ScriptException;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import static org.testng.Assert.*;

/**
 * @bug 8169050
 * @summary underscore_linker.js sample fails after dynalink changes for JDK-8168005
 */
public class JDK_8169050_Test {
    private ScriptEngine engine;

    @BeforeClass
    public void setupTest() {
        engine = new ScriptEngineManager().getEngineByName("js");
    }

    @Test
    public void testUndersoreName() throws ScriptException {
        engine.eval("var S = java.util.stream.Stream, v = 0;");
        // The underscore name 'for_each' exercises pluggable dynalink linker
        engine.eval("S.of(4, 5, 9).for_each(function(x) { v += x })");
        assertEquals(18, ((Number)engine.get("v")).intValue());
    }
}