/*
* 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.
*
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package com.oracle.truffle.api.test.vm;
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 java.util.LinkedList;
import java.util.List;
import java.util.concurrent.Executor;
import org.junit.Test;
import com.oracle.truffle.api.source.Source;
import com.oracle.truffle.api.vm.PolyglotEngine;
import org.junit.After;
public class ValueTest implements Executor {
private List<Runnable> pending = new LinkedList<>();
private PolyglotEngine engine;
@After
public void dispose() {
pending = null;
if (engine != null) {
engine.dispose();
}
}
@Test
public void valueToStringValue() throws Exception {
engine = PolyglotEngine.newBuilder().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.newBuilder("explicit.value=42").name("define 42").mimeType("content/unknown").build());
PolyglotEngine.Value value = language1.eval(Source.newBuilder("return=value").name("42.value").mimeType("content/unknown").build());
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 {
engine = PolyglotEngine.newBuilder().build();
PolyglotEngine.Language language1 = engine.getLanguages().get("application/x-test-import-export-1");
PolyglotEngine.Value value = null;
try {
value = language1.eval(Source.newBuilder("parse=does not work").name("error.value").mimeType("content/unknown").build());
Object res = value.get();
fail("Should throw an exception: " + res);
} catch (Exception 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 {
engine = PolyglotEngine.newBuilder().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.newBuilder("explicit.value=42").name("define 42").mimeType("content/unknown").build());
flush();
PolyglotEngine.Value value = language1.eval(Source.newBuilder("return=value").name("42.value").mimeType("content/unknown").build());
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 {
engine = PolyglotEngine.newBuilder().executor(this).build();
PolyglotEngine.Language language1 = engine.getLanguages().get("application/x-test-import-export-1");
PolyglotEngine.Value value = language1.eval(Source.newBuilder("parse=does not work").name("error.value").mimeType("content/unknown").build());
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) {
if (pending != null) {
pending.add(command);
} else {
command.run();
}
}
private void flush() {
for (Runnable r : pending) {
r.run();
}
}
}