ReferenceImpl implements Reference { @Override public final String toString() { return "Reference [specification=" + this.specification + ", clause=" + this.clause + "]"; } private  ReferenceImpl(); private  ReferenceImpl(final String specification, final String clause); @Override String getSpecification(); @Override String getClause(); @Override final int hashCode(); @Override final boolean equals(Object obj); @Override final String toString();  }
@Test public final void testToString() { assertTrue(Profiles.defaultReference().toString().equals(DEFAULT_REFERENCE_STRING)); }