ImplementationSpecificArgument ia =
new ImplementationSpecificArgument();
ia.setLine("A B");
String[] parts = ia.getParts();
assertNotNull(parts);
assertEquals(2, parts.length);
assertEquals("A", parts[0]);
assertEquals("B", parts[1]);
parts = ia.getParts(null);
assertNotNull(parts);
assertEquals(2, parts.length);
assertEquals("A", parts[0]);
assertEquals("B", parts[1]);
ia.setImplementation("foo");
parts = ia.getParts(null);
assertNotNull(parts);
assertEquals(0, parts.length);
parts = ia.getParts("foo");
assertNotNull(parts);
assertEquals(2, parts.length);
assertEquals("A", parts[0]);
assertEquals("B", parts[1]);
