Module io.helidon.config.testing

Package io.helidon.config.testing

Class MatcherWithRetry

java.lang.Object

io.helidon.config.testing.MatcherWithRetry

public class MatcherWithRetry
extends Object

Hamcrest matcher capable of configured retries before failing the assertion, plus more generic retry processing.

Method Summary

Modifier and Type	Method	Description
static <T> T	assertThatWithRetry(String reason, Supplier<T> actualSupplier, org.hamcrest.Matcher<? super T> matcher)	Checks the matcher, possibly multiple times after configured delays, invoking the supplier of the matched value each time, until either the matcher passes or the maximum retry expires.
static void	retry(Callable<Boolean> work)	Retries the specified work until successful or retry limit is exceeded.

Methods inherited from class java.lang.Object

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

Method Detail

assertThatWithRetry

public static <T> T assertThatWithRetry(String reason,
                                        Supplier<T> actualSupplier,
                                        org.hamcrest.Matcher<? super T> matcher)
                                 throws InterruptedException

Checks the matcher, possibly multiple times after configured delays, invoking the supplier of the matched value each time, until either the matcher passes or the maximum retry expires.

Type Parameters:

T - type of the supplied value

Parameters:

reason - explanation of the assertion

actualSupplier - Supplier that furnishes the value to submit to the matcher

matcher - Hamcrest matcher which evaluates the supplied value

Returns:

the supplied value

Throws:

InterruptedException - if the sleep is interrupted

retry

public static void retry(Callable<Boolean> work)
                  throws Exception

Retries the specified work until successful or retry limit is exceeded.

Parameters:

work - the work to perform; returned boolean indicates if the work was successful

Throws:

Exception - exception from the work or from the sleep being interrupted