### Question:
OperationKeyMatcher implements Matcher { public void setMinorVersion(int minorVersion) { this.minorVersion = minorVersion; }  String getServiceName(); void setServiceName(String serviceName); String getOperationName(); void setOperationName(String operationName); int getMajorVersion(); void setMajorVersion(int majorVersion); int getMinorVersion(); void setMinorVersion(int minorVersion); boolean isInverted(); void setInverted(boolean inverted); String getNamespace(); void setNamespace(String namespace); boolean isRequireNullNamespace(); void setRequireNullNamespace(boolean requireNullNamespace); OperationKey.Type getType(); void setType(String type); void setType(OperationKey.Type type); @Override boolean matches(ExecutionContext ctx, OperationKey key, Object[] args); boolean matches(OperationKey key); String toString();  }### Answer:
@Test public void minorVersionMatching() { operationKeyMatcher.setMinorVersion(3); assertInvocation("With wrong minorVersion, key must fail to match", false); operationKeyMatcher.setMinorVersion(2); assertInvocation("With right minorVersion, key must match", true); }