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package com.oracle.truffle.js.scriptengine.test;

import static org.junit.Assert.assertEquals;

import javax.script.Invocable;
import javax.script.ScriptEngine;
import javax.script.ScriptException;

import org.junit.Test;

import com.oracle.truffle.js.scriptengine.GraalJSScriptEngine;

public class GR25198 {

    static void defineAlert(ScriptEngine engine) throws ScriptException {
        try {
            // @formatter:off
            Object defineAlert = engine.eval(""
                + "(function(out) {\n"
                + "  this.alert = function(msg) {\n"
                + "    return msg;\n"
                + " };"
                + "});"
            );
            // @formatter:on
            ((Invocable) engine).invokeMethod(defineAlert, "call", null, "out");
            assertEquals("red", ((Invocable) engine).invokeFunction("alert", "red"));
        } catch (NoSuchMethodException ex) {
            throw new ScriptException(ex);
        }
    }

    @Test
    public void testNullThis() throws ScriptException {
        try (GraalJSScriptEngine engine = GraalJSScriptEngine.create(null, TestUtil.newContextBuilder())) {
            defineAlert(engine);
        }
    }
}