@Test
public void testExec_Paris_London() {

    NodeValue v1 = NodeValue.makeDouble(48.85341);
    NodeValue v2 = NodeValue.makeDouble(2.34880);
    NodeValue v3 = NodeValue.makeDouble(51.50853);
    NodeValue v4 = NodeValue.makeDouble(-0.12574);
    NodeValue v5 = NodeValue.makeString(Unit_URI.KILOMETER_URL);
    GreatCircleFF instance = new GreatCircleFF();
    double expResult = 343.7713;
    double result = instance.exec(v1, v2, v3, v4, v5).getDouble();
    assertEquals(expResult, result, 0.0001);
}