@Test
public void testExec_CRS84() {

    NodeValue v = NodeValue.makeNode("POLYGON((30 40, 30 70, 90 70, 90 40, 30 40))", WKTDatatype.INSTANCE);
    BoundaryFF instance = new BoundaryFF();
    NodeValue expResult = NodeValue.makeNode("LINESTRING(30 40, 30 70, 90 70, 90 40, 30 40)", WKTDatatype.INSTANCE);
    NodeValue result = instance.exec(v);
    assertEquals(expResult, result);
}