TPSInfo implements Serializable { public String getKey() { return key; } TPSInfo();  TPSInfo(Date timestamp, String key, int transactions, int period); TPSInfo add(TPSInfo toAdd); Date getTimestamp(); String getKey(); int getTransactions(); int getPeriodInSeconds(); int getTPS(); @Override String toString(); @Override boolean equals(Object obj); @Override int hashCode();  }
@Test public void testGetKey_1() throws Exception { TPSInfo fixture = new TPSInfo(new Date(), "", 1, 1); String result = fixture.getKey(); assertEquals("", result); }