org.junit.jupiter.params.converter

Class DefaultArgumentConverter

java.lang.Object

org.junit.jupiter.params.converter.SimpleArgumentConverter

org.junit.jupiter.params.converter.DefaultArgumentConverter

All Implemented Interfaces:

ArgumentConverter

@API(status=INTERNAL,
     since="5.0")
public class DefaultArgumentConverter
extends SimpleArgumentConverter

DefaultArgumentConverter is the default implementation of the ArgumentConverter API.

The DefaultArgumentConverter is able to convert from strings to a number of primitive types and their corresponding wrapper types (Byte, Short, Integer, Long, Float, and Double) as well as date and time types from the java.time package.

If the source and target types are identical the source object will not be modified.

Since:

5.0

See Also:

ArgumentConverter

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	DefaultArgumentConverter.StringToEnumConverter
(package private) static class	DefaultArgumentConverter.StringToJavaTimeConverter
(package private) static interface	DefaultArgumentConverter.StringToObjectConverter
(package private) static class	DefaultArgumentConverter.StringToPrimitiveConverter

Field Summary

Fields

Modifier and Type	Field and Description
static DefaultArgumentConverter	INSTANCE
private static java.util.List<DefaultArgumentConverter.StringToObjectConverter>	stringToObjectConverters

Constructor Summary

Constructors

Modifier	Constructor and Description
private	DefaultArgumentConverter()

Method Summary

Modifier and Type	Method and Description
protected java.lang.Object	convert(java.lang.Object source, java.lang.Class<?> targetType) Convert the supplied source object into to the supplied targetType.
private java.lang.Object	convertToTargetType(java.lang.Object source, java.lang.Class<?> targetType)
private java.lang.Class<?>	toWrapperType(java.lang.Class<?> targetType)

Methods inherited from class org.junit.jupiter.params.converter.SimpleArgumentConverter

convert

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final DefaultArgumentConverter INSTANCE

stringToObjectConverters

private static final java.util.List<DefaultArgumentConverter.StringToObjectConverter> stringToObjectConverters

Constructor Detail

DefaultArgumentConverter

private DefaultArgumentConverter()

Method Detail

convert

protected java.lang.Object convert(java.lang.Object source,
                                   java.lang.Class<?> targetType)

Description copied from class: SimpleArgumentConverter

Convert the supplied source object into to the supplied targetType.

Specified by:

convert in class SimpleArgumentConverter

Parameters:

source - the source object to convert; may be null

targetType - the target type the source object should be converted into; never null

Returns:

the converted object; may be null but only if the target type is a reference type.

toWrapperType

private java.lang.Class<?> toWrapperType(java.lang.Class<?> targetType)

convertToTargetType

private java.lang.Object convertToTargetType(java.lang.Object source,
                                             java.lang.Class<?> targetType)