Mercurial > hg > truffle
view truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/RootNodeTest.java @ 22241:14e6dfb1ef05
Truffle/Testing: massive rework of tests to accommodate recent instrumentation change with respect to "applyInstrumentation"
- Caused by lack of a "vm" known to the Accessor during most testing, making the Instrumenter unavailable, which is now required to create a CallTarget
- Modified the Instrumenter/Accessor with a static field that can be reflectively "poked" with a vm value for testing
- Create a pair of methods to globally enable/disable testing mode to modify that static field and restore it when tests complete.
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
---|---|
date | Tue, 22 Sep 2015 20:31:19 -0700 |
parents | dc83cc1f94f2 |
children | 0d36601f233e |
line wrap: on
line source
/* * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. * 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.truffle.api.test; import com.oracle.truffle.api.CallTarget; import com.oracle.truffle.api.Truffle; import com.oracle.truffle.api.TruffleRuntime; import com.oracle.truffle.api.frame.VirtualFrame; import com.oracle.truffle.api.nodes.RootNode; import com.oracle.truffle.api.test.utilities.InstrumentationTestMode; import org.junit.After; import org.junit.Assert; import org.junit.Before; import org.junit.Test; /** * <h3>Creating a Root Node</h3> * * <p> * A Truffle root node is the entry point into a Truffle tree that represents a guest language * method. It contains a {@link RootNode#execute(VirtualFrame)} method that can return a * {@link java.lang.Object} value as the result of the guest language method invocation. This method * must however never be called directly. Instead, the Truffle runtime must be used to create a * {@link CallTarget} object from a root node using the * {@link TruffleRuntime#createCallTarget(RootNode)} method. This call target object can then be * executed using the {@link CallTarget#call(Object...)} method or one of its overloads. * </p> * * <p> * The next part of the Truffle API introduction is at * {@link com.oracle.truffle.api.test.ChildNodeTest}. * </p> */ public class RootNodeTest { @Before public void before() throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException { InstrumentationTestMode.set(true); } @After public void after() throws NoSuchFieldException, SecurityException, IllegalArgumentException, IllegalAccessException { InstrumentationTestMode.set(false); } @Test public void test() { TruffleRuntime runtime = Truffle.getRuntime(); TestRootNode rootNode = new TestRootNode(); CallTarget target = runtime.createCallTarget(rootNode); Object result = target.call(); Assert.assertEquals(42, result); } class TestRootNode extends RootNode { public TestRootNode() { super(TestingLanguage.class, null, null); } @Override public Object execute(VirtualFrame frame) { return 42; } } }