# HG changeset patch # User Jaroslav Tulach # Date 1444202801 -7200 # Node ID 088b3121f5aeaa791ffad3f2945a481215532b88 # Parent 137edaaad62ff1ec9aec6ff62539b486d1224e66 Giving Value instances toString() useful for debugging purposes. diff -r 137edaaad62f -r 088b3121f5ae truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/vm/ValueTest.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/truffle/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/vm/ValueTest.java Wed Oct 07 09:26:41 2015 +0200 @@ -0,0 +1,127 @@ +/* + * Copyright (c) 2014, 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.vm; + +import com.oracle.truffle.api.source.Source; +import com.oracle.truffle.api.vm.PolyglotEngine; +import java.io.IOException; +import java.util.LinkedList; +import java.util.List; +import java.util.concurrent.Executor; +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertFalse; +import static org.junit.Assert.assertNotNull; +import static org.junit.Assert.assertNull; +import static org.junit.Assert.assertTrue; +import static org.junit.Assert.fail; +import org.junit.Test; + +public class ValueTest implements Executor { + private List pending = new LinkedList<>(); + + @Test + public void valueToStringValue() throws Exception { + PolyglotEngine engine = PolyglotEngine.buildNew().build(); + PolyglotEngine.Language language1 = engine.getLanguages().get("application/x-test-import-export-1"); + PolyglotEngine.Language language2 = engine.getLanguages().get("application/x-test-import-export-2"); + language2.eval(Source.fromText("explicit.value=42", "define 42")); + PolyglotEngine.Value value = language1.eval(Source.fromText("return=value", "42.value")); + assertEquals("It's fourtytwo", "42", value.get()); + + String textual = value.toString(); + assertTrue("Contains the value " + textual, textual.contains("value=42")); + assertTrue("Is computed " + textual, textual.contains("computed=true")); + assertTrue("No error " + textual, textual.contains("exception=null")); + } + + @Test + public void valueToStringException() throws Exception { + PolyglotEngine engine = PolyglotEngine.buildNew().build(); + PolyglotEngine.Language language1 = engine.getLanguages().get("application/x-test-import-export-1"); + PolyglotEngine.Value value = null; + try { + value = language1.eval(Source.fromText("parse=does not work", "error.value")); + Object res = value.get(); + fail("Should throw an exception: " + res); + } catch (IOException ex) { + assertTrue("Message contains the right text: " + ex.getMessage(), ex.getMessage().contains("does not work")); + } + + assertNull("No value returned", value); + } + + @Test + public void valueToStringValueAsync() throws Exception { + PolyglotEngine engine = PolyglotEngine.buildNew().executor(this).build(); + PolyglotEngine.Language language1 = engine.getLanguages().get("application/x-test-import-export-1"); + PolyglotEngine.Language language2 = engine.getLanguages().get("application/x-test-import-export-2"); + language2.eval(Source.fromText("explicit.value=42", "define 42")); + flush(); + + PolyglotEngine.Value value = language1.eval(Source.fromText("return=value", "42.value")); + + String textual = value.toString(); + assertFalse("Doesn't contain the value " + textual, textual.contains("value=42")); + assertTrue("Is not computed " + textual, textual.contains("computed=false")); + assertTrue("No error " + textual, textual.contains("exception=null")); + assertTrue("No value yet " + textual, textual.contains("value=null")); + + flush(); + + textual = value.toString(); + assertTrue("Is computed " + textual, textual.contains("computed=true")); + assertTrue("No error " + textual, textual.contains("exception=null")); + assertTrue("value computed " + textual, textual.contains("value=42")); + } + + @Test + public void valueToStringExceptionAsync() throws Exception { + PolyglotEngine engine = PolyglotEngine.buildNew().executor(this).build(); + PolyglotEngine.Language language1 = engine.getLanguages().get("application/x-test-import-export-1"); + PolyglotEngine.Value value = language1.eval(Source.fromText("parse=does not work", "error.value")); + assertNotNull("Value returned", value); + + String textual = value.toString(); + assertTrue("Is not computed " + textual, textual.contains("computed=false")); + assertTrue("No error " + textual, textual.contains("exception=null")); + assertTrue("No value yet " + textual, textual.contains("value=null")); + + flush(); + + textual = value.toString(); + assertTrue("Is computed " + textual, textual.contains("computed=true")); + assertTrue("No value at all" + textual, textual.contains("value=null")); + assertTrue("Error " + textual, textual.contains("exception=java.io.IOException: does not work")); + } + + @Override + public void execute(Runnable command) { + pending.add(command); + } + + private void flush() { + for (Runnable r : pending) { + r.run(); + } + } +} diff -r 137edaaad62f -r 088b3121f5ae truffle/com.oracle.truffle.api.vm/src/com/oracle/truffle/api/vm/PolyglotEngine.java --- a/truffle/com.oracle.truffle.api.vm/src/com/oracle/truffle/api/vm/PolyglotEngine.java Tue Oct 06 20:39:22 2015 +0200 +++ b/truffle/com.oracle.truffle.api.vm/src/com/oracle/truffle/api/vm/PolyglotEngine.java Wed Oct 07 09:26:41 2015 +0200 @@ -801,6 +801,11 @@ throw (InterruptedIOException) new InterruptedIOException(ex.getMessage()).initCause(ex); } } + + @Override + public String toString() { + return "PolyglotEngine.Value[value=" + result[0] + ",exception=" + result[1] + ",computed=" + (ready.getCount() == 0) + "]"; + } } /**