NullArrayNFITest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
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package com.oracle.truffle.nfi.test;

import com.oracle.truffle.api.CallTarget;
import com.oracle.truffle.api.interop.TruffleObject;
import com.oracle.truffle.api.interop.java.JavaInterop;
import com.oracle.truffle.nfi.test.interop.NullObject;
import com.oracle.truffle.nfi.types.NativeSimpleType;
import com.oracle.truffle.tck.TruffleRunner;
import com.oracle.truffle.tck.TruffleRunner.Inject;
import java.util.ArrayList;
import java.util.Collection;
import static org.hamcrest.CoreMatchers.instanceOf;
import static org.hamcrest.CoreMatchers.is;
import org.junit.Assert;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameter;
import org.junit.runners.Parameterized.Parameters;

@RunWith(Parameterized.class)
@Parameterized.UseParametersRunnerFactory(TruffleRunner.ParametersFactory.class)
public class NullArrayNFITest extends NFITest {

    @Parameters(name = "{0}")
    public static Collection<Object[]> data() {
        ArrayList<Object[]> ret = new ArrayList<>();
        ret.add(new Object[]{NativeSimpleType.UINT8});
        ret.add(new Object[]{NativeSimpleType.SINT8});
        ret.add(new Object[]{NativeSimpleType.UINT16});
        ret.add(new Object[]{NativeSimpleType.SINT16});
        ret.add(new Object[]{NativeSimpleType.UINT32});
        ret.add(new Object[]{NativeSimpleType.SINT32});
        ret.add(new Object[]{NativeSimpleType.UINT64});
        ret.add(new Object[]{NativeSimpleType.SINT64});
        ret.add(new Object[]{NativeSimpleType.FLOAT});
        ret.add(new Object[]{NativeSimpleType.DOUBLE});
        return ret;
    }

    @Parameter public NativeSimpleType nativeType;

    public class NullArrayNode extends SendExecuteNode {

        public NullArrayNode() {
            super("null_array_" + nativeType, String.format("([%s]):string", nativeType), 1);
        }
    }

    @Test
    public void testNullArray(@Inject(NullArrayNode.class) CallTarget target) {
        Object ret = target.call(new NullObject());
        Assert.assertThat("return value", ret, is(instanceOf(TruffleObject.class)));

        TruffleObject obj = (TruffleObject) ret;
        Assert.assertTrue("isBoxed", JavaInterop.isBoxed(obj));
        Assert.assertEquals("return value", "null", JavaInterop.unbox(obj));
    }
}