### Question:
AWSEnvironment { @Override public String toString() { return MoreObjects.toStringHelper(this) .add("account", account) .add("region", region) .toString(); } AWSEnvironment(String account, String region); String getAccount(); String getRegion(); @Override boolean equals(Object o); @Override int hashCode(); @Override String toString();  }### Answer:
@Test public void testToString(){ String account = "Hello"; String region = "World"; AWSEnvironment awsEnvironment1 = new AWSEnvironment(account, region); Assert.assertEquals("Test toString() Method", MoreObjects.toStringHelper(AWSEnvironment.class).add("account", account).add("region", region).toString(), awsEnvironment1.toString()); }