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package com.oracle.truffle.js.test.regress;
import static com.oracle.truffle.js.lang.JavaScriptLanguage.ID;
import static org.junit.Assert.assertTrue;
import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.Value;
import org.junit.Test;
import com.oracle.truffle.js.test.JSTest;
import org.graalvm.polyglot.PolyglotException;
public class GR19796 {
@Test
public void test() {
try (Context context = JSTest.newContextBuilder().allowAllAccess(true).build()) {
// Various objects with distinct InteropLibraries
Value[] values = new Value[]{
context.eval(ID, "java.lang.Class"), // HostObject
context.eval(ID, "java.lang.Class.forName"), // HostFunction
context.getBindings(ID), // PolyglotLanguageBindings
context.eval(ID, "new Object()").getMetaObject(), // JSMetaObject
context.eval(ID, "Symbol()"), // Symbol
context.eval(ID, "42n") // BigInt
};
Value max = context.eval("js", "Math.max");
// Activate JSToObjectArrayNode.doForeignObject() and exceed its cache limit
for (Value value : values) {
try {
max.invokeMember("apply", "this", value);
} catch (PolyglotException pex) {
assertTrue(pex.isGuestException());
}
}
// Ensure that undefined is handled correctly (i.e. not consumed by
// JSToObjectArrayNode.doForeignObject()).
Value result = max.invokeMember("apply", "this");
// Math.max() === -Infinity
assertTrue(result.isNumber());
assertTrue(result.asDouble() == Double.NEGATIVE_INFINITY);
}
}
}