/*
 * Renjin : JVM-based interpreter for the R language for the statistical analysis
 * Copyright Â© 2010-2019 BeDataDriven Groep B.V. and contributors
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, a copy is available at
 * https://www.gnu.org/licenses/gpl-2.0.txt
 */
package org.renjin.gcc;

import org.junit.Test;
import org.renjin.gcc.gimple.GimpleCompilationUnit;

import java.lang.reflect.Method;
import java.util.Collections;

import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;

public class ProvidedVarTest extends AbstractGccTest {
  
  public static int jvm_field = 92;
  
  @Test
  public void test() throws Exception {

    GimpleCompilationUnit unit = compileToGimple("provided_vars.c");

    GimpleCompiler compiler = new GimpleCompiler();
    compiler.setOutputDirectory(outputDir);
    compiler.setPackageName("org.renjin.gcc");
    compiler.setVerbose(true);
    compiler.setByteCodeOptimizationDisabled(true);
    compiler.addVariable("jvm_field", ProvidedVarTest.class);

    compiler.compile(Collections.singletonList(unit));

    Class<?> clazz = testClassLoader.loadClass("org.renjin.gcc.provided_vars");
    Method test = clazz.getMethod("test");
    int result = (Integer)test.invoke(null);
    
    assertThat(result, equalTo(92));
  }
  
}
