Class CheckerCallable<V>

java.lang.Object

util.AbstractChecker<Callable<V>,CheckerCallable<V>>

specialized_checkers.lambda.CheckerCallable<V>

Type Parameters:

V - the result type returned by the call() method of the Callable

All Implemented Interfaces:

InterfaceChecker<AbstractChecker<Callable<V>,CheckerCallable<V>>,Callable<V>>

public class CheckerCallable<V>
extends AbstractChecker<Callable<V>,CheckerCallable<V>>

A specialized checker for Callable instances, providing fluent assertions for validating the behavior and results of Callable tasks.

This class extends AbstractChecker to offer convenient methods for asserting that a Callable does not throw exceptions, produces expected results, or returns non-null values.

Example usage:

 CheckerCallable<Integer> checker = CheckerCallable.check(() -> 42)
        .callWithoutException()
        .producesExpected(42)
        .producesNonNull();
 

See Also:

• Callable
• AbstractChecker

Field Summary

Fields inherited from class util.AbstractChecker

backObject, exceptionTracker, name, object, saveErrors, stop

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CheckerCallable(Callable<V> callable, String name)	Constructs a new CheckerCallable with the specified Callable task and a name.

Method Summary

Modifier and Type	Method	Description
CheckerCallable<V>	callWithoutException()	Asserts that calling the call() method of the Callable does not throw any exception.
static <V> CheckerCallable<V>	check(Callable<V> callable)	Creates a new CheckerCallable for the given Callable instance with a default name.
static <V> CheckerCallable<V>	check(Callable<V> callable, String name)	Creates a new CheckerCallable for the given Callable instance with a custom name.
CheckerCallable<V>	producesExpected(V expected)	Asserts that the call() method of the Callable produces the expected result.
CheckerCallable<V>	producesNonNull()	Asserts that the call() method of the Callable produces a non-null result.
protected CheckerCallable<V>	self()	Returns this checker instance (for fluent API usage).

Methods inherited from class util.AbstractChecker

checkProperty, checkProperty, checkProperty, end, getMethod, getObject, getProperty, hasErrors, hasNotErrors, is, is, isEqual, isNonNull, isNot, isNot, isNull, notSaveErrors, saveErrors, show, showNotThrownException, showThrownException, stop

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

CheckerCallable

protected CheckerCallable(Callable<V> callable,
 String name)

Constructs a new CheckerCallable with the specified Callable task and a name.

Parameters:

callable - the Callable task to be executed by this checker

name - the name associated with this checker

Method Details

check

public static <V> CheckerCallable<V> check(Callable<V> callable,
 String name)

Creates a new CheckerCallable for the given Callable instance with a custom name.

Type Parameters:

V - the result type returned by the call() method of the Callable

Parameters:

callable - the Callable instance to be checked

name - the name to identify this checker instance (useful for error messages)

Returns:

a new CheckerCallable for the provided Callable

check

public static <V> CheckerCallable<V> check(Callable<V> callable)

Creates a new CheckerCallable for the given Callable instance with a default name.

Type Parameters:

V - the result type returned by the call() method of the Callable

Parameters:

callable - the Callable instance to be checked

Returns:

a new CheckerCallable for the provided Callable

self

protected CheckerCallable<V> self()

Returns this checker instance (for fluent API usage).

Specified by:

self in class AbstractChecker<Callable<V>,CheckerCallable<V>>

Returns:

this CheckerCallable instance

callWithoutException

public CheckerCallable<V> callWithoutException()

Asserts that calling the call() method of the Callable does not throw any exception.

Returns:

this CheckerCallable instance for further validation

producesExpected

public CheckerCallable<V> producesExpected(V expected)

Asserts that the call() method of the Callable produces the expected result.

Parameters:

expected - the expected result to compare with the actual result of call()

Returns:

this CheckerCallable instance for further validation

producesNonNull

public CheckerCallable<V> producesNonNull()

Asserts that the call() method of the Callable produces a non-null result.

Returns:

this CheckerCallable instance for further validation