@Test
 public void testIntArray() {
   final IREXP libraryREXP =
       PlainJavaConnectionTestSuiteContext.getInstance()
           .acquireRConnection()
           .eval(
               new StringBuffer()
                   .append("try(")
                   .append("c(as.integer(1+4),as.integer(1+5))")
                   .append(")")
                   .toString());
   Assert.assertNotNull(libraryREXP);
   Assert.assertEquals(IREXP.XT_ARRAY_INT, libraryREXP.getType());
   final int[] iArray = libraryREXP.asIntArray();
   Assert.assertEquals(5, iArray[0]);
   Assert.assertEquals(6, iArray[1]);
 }