Class ParameterizedTestSpiInstantiator

java.lang.Object

org.junit.jupiter.params.ParameterizedTestSpiInstantiator

class ParameterizedTestSpiInstantiator
extends Object

Since:

5.12

Constructor Summary

Constructors

Constructor	Description
ParameterizedTestSpiInstantiator()

Method Summary

Modifier and Type	Method	Description
private static <T> Constructor<?>	findBestConstructor(Class<T> spiInterface, Class<? extends T> implementationClass)	Find the "best" constructor for the supplied implementation class.
private static <T> Constructor<? extends T>	findConstructor(Class<T> spiInterface, Class<? extends T> implementationClass)
(package private) static <T> T	instantiate(Class<T> spiInterface, Class<? extends T> implementationClass, org.junit.jupiter.api.extension.ExtensionContext extensionContext)

Methods inherited from class Object

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

Constructor Details

ParameterizedTestSpiInstantiator

ParameterizedTestSpiInstantiator()

Method Details

instantiate

static <T> T instantiate(Class<T> spiInterface,
 Class<? extends T> implementationClass,
 org.junit.jupiter.api.extension.ExtensionContext extensionContext)

findConstructor

private static <T> Constructor<? extends T> findConstructor(Class<T> spiInterface,
 Class<? extends T> implementationClass)

findBestConstructor

private static <T> Constructor<?> findBestConstructor(Class<T> spiInterface,
 Class<? extends T> implementationClass)

Find the "best" constructor for the supplied implementation class.

For backward compatibility, it first checks for a single constructor and returns that. If there are multiple constructors, it checks for a default constructor which takes precedence over any other constructors. Otherwise, this method throws an exception stating that it failed to find a suitable constructor.