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A collection of tests that can certify language implementation to be compliant
with most recent requirements of the Truffle infrastructure and tooling.
/*
* Copyright (c) 2017, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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.tck.impl;
import static org.junit.Assert.assertEquals;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import com.oracle.truffle.api.source.Source;
import com.oracle.truffle.api.vm.PolyglotEngine;
import com.oracle.truffle.tck.impl.TruffleLanguageRunner.RRunner;
/**
* Tests with code snippets in R language. They are used from {@link PolyglotEngine} & co. classes,
* but executed only when an implementation of R is around.
*/
@RunWith(RRunner.class)
public class PolyglotEngineWithR {
private PolyglotEngine engine;
@Before
public void initEngine() {
engine = PolyglotEngine.newBuilder().build();
}
@After
public void disposeEngine() {
engine.dispose();
}
// @formatter:off
@Test
public void testCallRtFunctionFromJava() {
callRFunctionFromJava();
}
// BEGIN: com.oracle.truffle.tck.impl.PolyglotEngineWithR#callRFunctionFromJava
@FunctionalInterface
interface BinomQuantile {
int qbinom(double q, int count, double prob);
}
public void callRFunctionFromJava() {
Source src = Source.newBuilder("qbinom").
mimeType("text/x-r").name("qbinom.R").build();
BinomQuantile func = engine.eval(src).as(BinomQuantile.class);
assertEquals(4, func.qbinom(0.37, 10, 0.5));
}
// END: com.oracle.truffle.tck.impl.PolyglotEngineWithR#callRFunctionFromJava
}
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