PerAtomFeeEntry implements FeeEntry { @Override public String toString() { return String.format("%s:%s", getClass().getSimpleName(), this.fee); } private  PerAtomFeeEntry(UInt256 fee); static PerAtomFeeEntry of(UInt256 fee); @Override UInt256 feeFor(Atom a, int feeSize, Set<Particle> outputs); UInt256 fee(); @Override int hashCode(); @Override boolean equals(Object obj); @Override String toString();  }
@Test public void testToString() { String s = get().toString(); assertThat(s).contains(PerAtomFeeEntry.class.getSimpleName()); }