### Question:
SecRuleEntityDecoder { public static boolean isEtherTypeOfOneWithinTwo(SecurityRule one, SecurityRule two) { Long oneEtherType = getEtherType(one); Long twoEtherType = getEtherType(two); return twoIsNullOrEqualsOne(oneEtherType, twoEtherType); } private  SecRuleEntityDecoder(); static ContractId getContractId(SecurityRule secRule); static ClassifierInstance getClassifierInstance(SecurityRule secRule); static ActionRef createActionRefFromActionChoice(ActionChoice action); static ClassifierRef getClassifierRef(SecurityRule secRule); static Direction getDirection(SecurityRule secRule); static Clause getClause(SecurityRule secRule); static boolean isEtherTypeOfOneWithinTwo(SecurityRule one, SecurityRule two); static boolean isProtocolOfOneWithinTwo(SecurityRule one, SecurityRule two); static boolean isPortsOfOneWithinTwo(SecurityRule one, SecurityRule two); static Long getEtherType(SecurityRule secRule); static Long getProtocol(SecurityRule secRule);  }### Answer:
@Test public final void testIsEtherTypeOfOneWithinTwo_oneEthTypeIPv4TwoEthTypeIPv4() { SecurityRule one = secRuleBuilder.setEthertype(EthertypeV4.class).build(); SecurityRule two = secRuleBuilder.setEthertype(EthertypeV4.class).build(); assertTrue(SecRuleEntityDecoder.isEtherTypeOfOneWithinTwo(one, two)); }
@Test public final void testIsEtherTypeOfOneWithinTwo_oneEthTypeIPv4TwoEthTypeNull() { SecurityRule one = secRuleBuilder.setEthertype(EthertypeV4.class).build(); SecurityRule two = secRuleBuilder.setEthertype(null).build(); assertTrue(SecRuleEntityDecoder.isEtherTypeOfOneWithinTwo(one, two)); }
@Test public final void testIsEtherTypeOfOneWithinTwo_oneEthTypeNullTwoEthTypeNull() { SecurityRule one = secRuleBuilder.setEthertype(null).build(); SecurityRule two = secRuleBuilder.setEthertype(null).build(); assertTrue(SecRuleEntityDecoder.isEtherTypeOfOneWithinTwo(one, two)); }
@Test public final void testIsEtherTypeOfOneWithinTwo_oneEthTypeIPv4TwoEthTypeIPv6() { SecurityRule one = secRuleBuilder.setEthertype(EthertypeV4.class).build(); SecurityRule two = secRuleBuilder.setEthertype(EthertypeV6.class).build(); assertFalse(SecRuleEntityDecoder.isEtherTypeOfOneWithinTwo(one, two)); }
@Test public final void testIsEtherTypeOfOneWithinTwo_oneEthTypeNullTwoEthTypeIPv4() { SecurityRule one = secRuleBuilder.setEthertype(null).build(); SecurityRule two = secRuleBuilder.setEthertype(EthertypeV4.class).build(); assertFalse(SecRuleEntityDecoder.isEtherTypeOfOneWithinTwo(one, two)); }