# HG changeset patch # User Michael Van De Vanter # Date 1422419245 28800 # Node ID cca166aa28c0445b43a20e8601b1a1d6f1bb4ac1 # Parent ac114ad31cddb13037c91991577810305a93277b Truffle/Tools: unit tests for new framework and tool instances diff -r ac114ad31cdd -r cca166aa28c0 graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/CoverageTrackerTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/CoverageTrackerTest.java Tue Jan 27 20:27:25 2015 -0800 @@ -0,0 +1,114 @@ +/* + * Copyright (c) 2015, 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.tools; + +import static com.oracle.truffle.api.test.tools.TestNodes.*; +import static org.junit.Assert.*; + +import org.junit.*; + +import com.oracle.truffle.api.instrument.*; +import com.oracle.truffle.api.nodes.*; +import com.oracle.truffle.api.tools.*; + +public class CoverageTrackerTest { + + @Test + public void testNoExecution() { + final CoverageTracker tool = new CoverageTracker(); + assertEquals(tool.getCounts().entrySet().size(), 0); + tool.install(); + assertEquals(tool.getCounts().entrySet().size(), 0); + tool.setEnabled(false); + assertEquals(tool.getCounts().entrySet().size(), 0); + tool.setEnabled(true); + assertEquals(tool.getCounts().entrySet().size(), 0); + tool.reset(); + assertEquals(tool.getCounts().entrySet().size(), 0); + tool.dispose(); + assertEquals(tool.getCounts().entrySet().size(), 0); + } + + @Test + public void testToolCreatedTooLate() { + final RootNode expr13rootNode = createExpr13TestRootNode(); + final CoverageTracker tool = new CoverageTracker(); + tool.install(); + assertEquals(13, expr13rootNode.execute(null)); + assertTrue(tool.getCounts().isEmpty()); + tool.dispose(); + } + + @Test + public void testToolInstalledcTooLate() { + final CoverageTracker tool = new CoverageTracker(); + final RootNode expr13rootNode = createExpr13TestRootNode(); + tool.install(); + assertEquals(13, expr13rootNode.execute(null)); + assertTrue(tool.getCounts().isEmpty()); + tool.dispose(); + } + + @Test + public void testCountingCoverage() { + final CoverageTracker tool = new CoverageTracker(); + tool.install(); + final RootNode expr13rootNode = createExpr13TestRootNode(); + + // Not probed yet. + assertEquals(13, expr13rootNode.execute(null)); + assertTrue(tool.getCounts().isEmpty()); + + final Node addNode = expr13rootNode.getChildren().iterator().next(); + final Probe probe = addNode.probe(); + + // Probed but not tagged yet. + assertEquals(13, expr13rootNode.execute(null)); + assertTrue(tool.getCounts().isEmpty()); + + probe.tagAs(StandardSyntaxTag.STATEMENT, "fake statement for testing"); + + // Counting now; execute once + assertEquals(13, expr13rootNode.execute(null)); + + final Long[] longs1 = tool.getCounts().get(addNode.getSourceSection().getSource()); + assertNotNull(longs1); + assertEquals(longs1.length, 2); + assertNull(longs1[0]); // Line 1 is empty (text lines are 1-based) + assertEquals(1L, longs1[1].longValue()); // Expression is on line 2 + + // Execute 99 more times + for (int i = 0; i < 99; i++) { + assertEquals(13, expr13rootNode.execute(null)); + } + + final Long[] longs100 = tool.getCounts().get(addNode.getSourceSection().getSource()); + assertNotNull(longs100); + assertEquals(longs100.length, 2); + assertNull(longs100[0]); + assertEquals(100L, longs100[1].longValue()); + + tool.dispose(); + } + +} diff -r ac114ad31cdd -r cca166aa28c0 graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/LineToProbesMapTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/LineToProbesMapTest.java Tue Jan 27 20:27:25 2015 -0800 @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2015, 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.tools; + +import static com.oracle.truffle.api.test.tools.TestNodes.*; +import static org.junit.Assert.*; + +import org.junit.*; + +import com.oracle.truffle.api.instrument.*; +import com.oracle.truffle.api.nodes.*; +import com.oracle.truffle.api.source.*; +import com.oracle.truffle.api.tools.*; + +public class LineToProbesMapTest { + + @Test + public void testToolCreatedTooLate() { + final RootNode expr13rootNode = createExpr13TestRootNode(); + final Node addNode = expr13rootNode.getChildren().iterator().next(); + final Probe probe = addNode.probe(); + final LineLocation lineLocation = probe.getProbedSourceSection().getLineLocation(); + assertEquals(lineLocation, expr13Line2); + + final LineToProbesMap tool = new LineToProbesMap(); + tool.install(); + + assertNull(tool.findFirstProbe(expr13Line1)); + assertNull(tool.findFirstProbe(expr13Line2)); + tool.dispose(); + } + + @Test + public void testToolInstalledTooLate() { + final LineToProbesMap tool = new LineToProbesMap(); + + final RootNode expr13rootNode = createExpr13TestRootNode(); + final Node addNode = expr13rootNode.getChildren().iterator().next(); + final Probe probe = addNode.probe(); + final LineLocation lineLocation = probe.getProbedSourceSection().getLineLocation(); + assertEquals(lineLocation, expr13Line2); + + tool.install(); + + assertNull(tool.findFirstProbe(expr13Line1)); + assertNull(tool.findFirstProbe(expr13Line2)); + tool.dispose(); + } + + @Test + public void testMapping() { + final LineToProbesMap tool = new LineToProbesMap(); + tool.install(); + + final RootNode expr13rootNode = createExpr13TestRootNode(); + final Node addNode = expr13rootNode.getChildren().iterator().next(); + final Probe probe = addNode.probe(); + final LineLocation lineLocation = probe.getProbedSourceSection().getLineLocation(); + assertEquals(lineLocation, expr13Line2); + + assertNull(tool.findFirstProbe(expr13Line1)); + assertEquals(tool.findFirstProbe(expr13Line2), probe); + tool.dispose(); + } + +} diff -r ac114ad31cdd -r cca166aa28c0 graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/NodeExecCounterTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/NodeExecCounterTest.java Tue Jan 27 20:27:25 2015 -0800 @@ -0,0 +1,165 @@ +/* + * Copyright (c) 2015, 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.tools; + +import static com.oracle.truffle.api.test.tools.TestNodes.*; +import static org.junit.Assert.*; + +import org.junit.*; + +import com.oracle.truffle.api.*; +import com.oracle.truffle.api.instrument.*; +import com.oracle.truffle.api.nodes.*; +import com.oracle.truffle.api.test.tools.TestNodes.TestAddNode; +import com.oracle.truffle.api.test.tools.TestNodes.TestValueNode; +import com.oracle.truffle.api.tools.*; +import com.oracle.truffle.api.tools.NodeExecCounter.NodeExecutionCount; + +public class NodeExecCounterTest { + + @Test + public void testNoExecution() { + final NodeExecCounter tool = new NodeExecCounter(); + assertEquals(tool.getCounts().length, 0); + tool.install(); + assertEquals(tool.getCounts().length, 0); + tool.setEnabled(false); + assertEquals(tool.getCounts().length, 0); + tool.setEnabled(true); + assertEquals(tool.getCounts().length, 0); + tool.reset(); + assertEquals(tool.getCounts().length, 0); + tool.dispose(); + assertEquals(tool.getCounts().length, 0); + } + + @Test + public void testToolCreatedTooLate() { + final CallTarget expr13callTarget = createExpr13TestCallTarget(); + final NodeExecCounter tool = new NodeExecCounter(); + tool.install(); + assertEquals(13, expr13callTarget.call()); + assertEquals(tool.getCounts().length, 0); + tool.dispose(); + } + + @Test + public void testToolInstalledcTooLate() { + final NodeExecCounter tool = new NodeExecCounter(); + final CallTarget expr13callTarget = createExpr13TestCallTarget(); + tool.install(); + assertEquals(13, expr13callTarget.call()); + assertEquals(tool.getCounts().length, 0); + tool.dispose(); + } + + @Test + public void testCountingAll() { + final NodeExecCounter tool = new NodeExecCounter(); + tool.install(); + final CallTarget expr13callTarget = createExpr13TestCallTarget(); + + // execute once + assertEquals(13, expr13callTarget.call()); + final NodeExecutionCount[] count1 = tool.getCounts(); + assertNotNull(count1); + assertEquals(count1.length, 2); + for (NodeExecutionCount count : count1) { + final Class class1 = count.nodeClass(); + final long executionCount = count.executionCount(); + if (class1 == TestAddNode.class) { + assertEquals(executionCount, 1); + } else if (class1 == TestValueNode.class) { + assertEquals(executionCount, 2); + } else { + fail(); + } + } + + // Execute 99 more times + for (int i = 0; i < 99; i++) { + assertEquals(13, expr13callTarget.call()); + } + final NodeExecutionCount[] counts100 = tool.getCounts(); + assertNotNull(counts100); + assertEquals(counts100.length, 2); + for (NodeExecutionCount count : counts100) { + final Class class1 = count.nodeClass(); + final long executionCount = count.executionCount(); + if (class1 == TestAddNode.class) { + assertEquals(executionCount, 100); + } else if (class1 == TestValueNode.class) { + assertEquals(executionCount, 200); + } else { + fail(); + } + } + + tool.dispose(); + } + + @Test + public void testCountingTagged() { + final NodeExecCounter tool = new NodeExecCounter(StandardSyntaxTag.STATEMENT); + tool.install(); + final RootNode expr13rootNode = createExpr13TestRootNode(); + + // Not probed yet. + assertEquals(13, expr13rootNode.execute(null)); + assertEquals(tool.getCounts().length, 0); + + final Node addNode = expr13rootNode.getChildren().iterator().next(); + final Probe probe = addNode.probe(); + + // Probed but not tagged yet. + assertEquals(13, expr13rootNode.execute(null)); + assertEquals(tool.getCounts().length, 0); + + probe.tagAs(StandardSyntaxTag.STATEMENT, "fake statement for testing"); + + // Counting now; execute once + assertEquals(13, expr13rootNode.execute(null)); + final NodeExecutionCount[] counts1 = tool.getCounts(); + assertNotNull(counts1); + assertEquals(counts1.length, 1); + final NodeExecutionCount count1 = counts1[0]; + assertNotNull(count1); + assertEquals(count1.nodeClass(), addNode.getClass()); + assertEquals(count1.executionCount(), 1); + + // Execute 99 more times + for (int i = 0; i < 99; i++) { + assertEquals(13, expr13rootNode.execute(null)); + } + + final NodeExecutionCount[] counts100 = tool.getCounts(); + assertNotNull(counts100); + assertEquals(counts100.length, 1); + final NodeExecutionCount count100 = counts100[0]; + assertNotNull(count100); + assertEquals(count100.nodeClass(), addNode.getClass()); + assertEquals(count100.executionCount(), 100); + + tool.dispose(); + } +} diff -r ac114ad31cdd -r cca166aa28c0 graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/TestNodes.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/TestNodes.java Tue Jan 27 20:27:25 2015 -0800 @@ -0,0 +1,221 @@ +/* + * Copyright (c) 2015, 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.tools; + +import com.oracle.truffle.api.*; +import com.oracle.truffle.api.frame.*; +import com.oracle.truffle.api.instrument.*; +import com.oracle.truffle.api.instrument.ProbeNode.WrapperNode; +import com.oracle.truffle.api.nodes.*; +import com.oracle.truffle.api.source.*; + +/** + * Nodes and an {@linkplain CallTarget executable ASTs} for testing. + */ +public class TestNodes { + + /** + * A fake source used for testing: empty line 1, expression on line 2. + */ + public static final Source expr13Source = Source.fromText("\n6+7\n", "Test Source: expression on line 2 that evaluates to 13"); + public static final LineLocation expr13Line1 = expr13Source.createLineLocation(1); + public static final LineLocation expr13Line2 = expr13Source.createLineLocation(2); + + /** + * An executable addition expression that evaluates to 13. + */ + public static CallTarget createExpr13TestCallTarget() { + final RootNode rootNode = createExpr13TestRootNode(); + return Truffle.getRuntime().createCallTarget(rootNode); + } + + /** + * Root holding an addition expression that evaluates to 13. + */ + public static RootNode createExpr13TestRootNode() { + final TestLanguageNode ast = createExpr13AST(); + final TestRootNode rootNode = new TestRootNode(ast); + rootNode.adoptChildren(); + return rootNode; + } + + /** + * Addition expression that evaluates to 13, with faked source attribution. + */ + public static TestLanguageNode createExpr13AST() { + final SourceSection leftSourceSection = expr13Source.createSection("left", 1, 1); + final TestValueNode leftValueNode = new TestValueNode(6, leftSourceSection); + final SourceSection rightSourceSection = expr13Source.createSection("right", 3, 1); + final TestValueNode rightValueNode = new TestValueNode(7, rightSourceSection); + final SourceSection exprSourceSection = expr13Source.createSection("expr", 1, 3); + return new TestAddNode(leftValueNode, rightValueNode, exprSourceSection); + } + + public abstract static class TestLanguageNode extends Node { + public abstract Object execute(VirtualFrame frame); + + public TestLanguageNode() { + } + + public TestLanguageNode(SourceSection srcSection) { + super(srcSection); + } + + @Override + public boolean isInstrumentable() { + return true; + } + + @Override + public WrapperNode createWrapperNode() { + return new TestWrapperNode(this); + } + } + + @NodeInfo(cost = NodeCost.NONE) + public static class TestWrapperNode extends TestLanguageNode implements WrapperNode { + @Child private TestLanguageNode child; + @Child private ProbeNode probeNode; + + public TestWrapperNode(TestLanguageNode child) { + assert !(child instanceof TestWrapperNode); + this.child = child; + } + + @Override + public String instrumentationInfo() { + return "Wrapper node for testing"; + } + + @Override + public boolean isInstrumentable() { + return false; + } + + @Override + public void insertProbe(ProbeNode newProbeNode) { + this.probeNode = newProbeNode; + } + + @Override + public Probe getProbe() { + try { + return probeNode.getProbe(); + } catch (IllegalStateException e) { + throw new IllegalStateException("Cannot call getProbe() on a wrapper that has no probe"); + } + } + + @Override + public Node getChild() { + return child; + } + + @Override + public Object execute(VirtualFrame frame) { + probeNode.enter(child, frame); + Object result; + + try { + result = child.execute(frame); + probeNode.returnValue(child, frame, result); + } catch (KillException e) { + throw (e); + } catch (Exception e) { + probeNode.returnExceptional(child, frame, e); + throw (e); + } + + return result; + } + } + + /** + * Truffle requires that all guest languages to have a {@link RootNode} which sits atop any AST + * of the guest language. This is necessary since creating a {@link CallTarget} is how Truffle + * completes an AST. The root nodes serves as our entry point into a program. + */ + public static class TestRootNode extends RootNode { + @Child private TestLanguageNode body; + + /** + * This constructor emulates the global machinery that applies registered probers to every + * newly created AST. Global registry is not used, since that would interfere with other + * tests run in the same environment. + */ + public TestRootNode(TestLanguageNode body) { + super(null); + this.body = body; + } + + @Override + public Object execute(VirtualFrame frame) { + return body.execute(frame); + } + + @Override + public boolean isCloningAllowed() { + return true; + } + + @Override + public void applyInstrumentation() { + Probe.applyASTProbers(body); + } + } + + public static class TestValueNode extends TestLanguageNode { + private final int value; + + public TestValueNode(int value) { + this.value = value; + } + + public TestValueNode(int value, SourceSection srcSection) { + super(srcSection); + this.value = value; + } + + @Override + public Object execute(VirtualFrame frame) { + return new Integer(this.value); + } + } + + public static class TestAddNode extends TestLanguageNode { + @Child private TestLanguageNode leftChild; + @Child private TestLanguageNode rightChild; + + public TestAddNode(TestValueNode leftChild, TestValueNode rightChild, SourceSection sourceSection) { + super(sourceSection); + this.leftChild = insert(leftChild); + this.rightChild = insert(rightChild); + } + + @Override + public Object execute(VirtualFrame frame) { + return new Integer(((Integer) leftChild.execute(frame)).intValue() + ((Integer) rightChild.execute(frame)).intValue()); + } + } + +} diff -r ac114ad31cdd -r cca166aa28c0 graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/TruffleToolTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/TruffleToolTest.java Tue Jan 27 20:27:25 2015 -0800 @@ -0,0 +1,129 @@ +/* + * Copyright (c) 2015, 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.tools; + +import static org.junit.Assert.*; + +import org.junit.*; + +import com.oracle.truffle.api.instrument.*; + +/** + * Test the basic life cycle properties shared by all instances of {@link TruffleTool}. + */ +public class TruffleToolTest { + + @Test + public void testEmptyLifeCycle() { + final DummyTruffleTool tool = new DummyTruffleTool(); + assertFalse(tool.isEnabled()); + tool.install(); + assertTrue(tool.isEnabled()); + tool.reset(); + assertTrue(tool.isEnabled()); + tool.setEnabled(false); + assertFalse(tool.isEnabled()); + tool.reset(); + assertFalse(tool.isEnabled()); + tool.setEnabled(true); + assertTrue(tool.isEnabled()); + tool.reset(); + assertTrue(tool.isEnabled()); + tool.dispose(); + assertFalse(tool.isEnabled()); + } + + @Test(expected = IllegalStateException.class) + public void testNotYetInstalled1() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.reset(); + } + + @Test(expected = IllegalStateException.class) + public void testNotYetInstalled2() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.setEnabled(true); + } + + @Test(expected = IllegalStateException.class) + public void testNotYetInstalled3() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.dispose(); + } + + @Test(expected = IllegalStateException.class) + public void testAlreadyInstalled() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.install(); + tool.install(); + } + + @Test(expected = IllegalStateException.class) + public void testAlreadyDisposed1() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.install(); + tool.dispose(); + tool.install(); + } + + @Test(expected = IllegalStateException.class) + public void testAlreadyDisposed2() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.install(); + tool.dispose(); + tool.reset(); + } + + @Test(expected = IllegalStateException.class) + public void testAlreadyDisposed3() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.install(); + tool.dispose(); + tool.setEnabled(true); + } + + @Test(expected = IllegalStateException.class) + public void testAlreadyDisposed4() { + final DummyTruffleTool tool = new DummyTruffleTool(); + tool.install(); + tool.dispose(); + tool.dispose(); + } + + private static final class DummyTruffleTool extends TruffleTool { + + @Override + protected boolean internalInstall() { + return true; + } + + @Override + protected void internalReset() { + } + + @Override + protected void internalDispose() { + } + + } +}