Public-Function Test Law and Legal Definition. Public-function test is a doctrine that is applicable for suits under 42 USCS § 1983. This is a legal principle which states that a private person’s actions constitute state action provided the private person performs functions which are traditionally reserved to the stateClick to see full answer. In this way, what is a public function?A public function is an act or activity taken by a public authority (including the police, NHS hospitals, and government departments), which is not a service.Also, what types of body or power will be susceptible to judicial review? “Source of power” test Judicial review claims are most commonly lodged against decisions (or non-decisions) by public office holders or public bodies who source their powers from statute, the royal prerogative or, in certain cases, the common law. Also question is, what is the state action doctrine? The state action doctrine is the principle that the Constitution and its protection of rights and equality applies only to the government. Private conduct does not have to comply with the Constitution.What are functions in Visual Basic?A Visual Basic 2010 function is a type of procedure that returns a value which is passed on to the main procedure to finish the execution. A function is similar to a sub procedure but there is one major difference, a function returns a value whilst a sub procedure does not.