hotspot/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.graph.test/src/org/graalvm/compiler/graph/test/NodeValidationChecksTest.java

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * 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.
 *
 * 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).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package org.graalvm.compiler.graph.test;

import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_UNKNOWN;
import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_UNKNOWN;

import org.junit.Assert;
import org.junit.Test;

import org.graalvm.compiler.graph.Graph;
import org.graalvm.compiler.graph.Node;
import org.graalvm.compiler.graph.NodeClass;
import org.graalvm.compiler.nodeinfo.NodeInfo;

public class NodeValidationChecksTest {

    @NodeInfo(cycles = CYCLES_UNKNOWN, size = SIZE_UNKNOWN)
    static final class TestNode extends Node {
        public static final NodeClass<TestNode> TYPE = NodeClass.create(TestNode.class);

        @Input TestNode input;
        @Successor TestNode successor;

        protected TestNode(TestNode input, TestNode successor) {
            super(TYPE);
            this.input = input;
            this.successor = successor;
        }
    }

    @Test
    public void testInputNotAlive() {
        Graph graph = new Graph();
        TestNode node = new TestNode(null, null);
        try {
            graph.add(new TestNode(node, null));
            Assert.fail("Exception expected.");
        } catch (AssertionError e) {
            Assert.assertTrue(e.getMessage().contains("Input"));
            Assert.assertTrue(e.getMessage().contains("not alive"));
        }
    }

    @Test
    public void testSuccessorNotAlive() {
        Graph graph = new Graph();
        TestNode node = new TestNode(null, null);
        try {
            graph.add(new TestNode(null, node));
            Assert.fail("Exception expected.");
        } catch (AssertionError e) {
            Assert.assertTrue(e.getMessage().contains("Successor"));
            Assert.assertTrue(e.getMessage().contains("not alive"));
        }
    }
}