Class ClassSource

java.lang.Object

org.junit.platform.engine.support.descriptor.ClassSource

All Implemented Interfaces:

Serializable, TestSource

@API(status=STABLE,
     since="1.0")
public final class ClassSource
extends Object
implements TestSource

Class based TestSource with an optional file position.

If a Java Class reference is provided, the ClassSource will contain that Class and its class name accordingly. If a class name is provided, the ClassSource will contain the class name and will only attempt to lazily load the Class if getJavaClass() is invoked.

In this context, Java Class means anything that can be referenced as a Class on the JVM — for example, classes from other JVM languages such Groovy, Scala, etc.

Since:

1.0

See Also:

• ClassSelector
• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CLASS_SCHEME	URI scheme for class sources: "class"

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
static ClassSource	from(Class<?> javaClass)	Create a new ClassSource using the supplied class.
static ClassSource	from(Class<?> javaClass, FilePosition filePosition)	Create a new ClassSource using the supplied class and file position.
static ClassSource	from(String className)	Create a new ClassSource using the supplied class name.
static ClassSource	from(String className, @Nullable FilePosition filePosition)	Create a new ClassSource using the supplied class name and file position.
static ClassSource	from(URI uri)	Create a new ClassSource from the supplied URI.
String	getClassName()	Get the class name of this source.
Class<?>	getJavaClass()	Get the Java class of this source.
Optional<FilePosition>	getPosition()	Get the position in the source file for the associated class, if available.
int	hashCode()
String	toString()

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

CLASS_SCHEME

@API(status=STABLE,
     since="1.8")
public static final String CLASS_SCHEME

URI scheme for class sources: "class"

Since:

1.8

See Also:

• Constant Field Values

Method Details

from

public static ClassSource from(String className)

Create a new ClassSource using the supplied class name.

Parameters:

className - the class name; must not be null or blank

from

public static ClassSource from(String className,
 @Nullable FilePosition filePosition)

Create a new ClassSource using the supplied class name and file position.

Parameters:

className - the class name; must not be null or blank

filePosition - the position in the source file; may be null

from

public static ClassSource from(Class<?> javaClass)

Create a new ClassSource using the supplied class.

Parameters:

javaClass - the Java class; must not be null

from

public static ClassSource from(Class<?> javaClass,
 FilePosition filePosition)

Create a new ClassSource using the supplied class and file position.

Parameters:

javaClass - the Java class; must not be null

filePosition - the position in the Java source file; may be null

from

@API(status=STABLE,
     since="1.8")
public static ClassSource from(URI uri)

Create a new ClassSource from the supplied URI.

URIs should be formatted as class:fully.qualified.class.Name. The query component of the URI, if present, will be used to retrieve the FilePosition via FilePosition.fromQuery(String). For example, line 42 and column 13 can be referenced in class org.example.MyType via the following URI: class:com.example.MyType?line=42&column=13. The URI fragment, if present, will be ignored.

Parameters:

uri - the URI for the class source; never null

Returns:

a new ClassSource; never null

Throws:

PreconditionViolationException - if the supplied URI is null, if the scheme of the supplied URI is not equal to the CLASS_SCHEME, or if the specified class name is empty

Since:

1.8

See Also:

• CLASS_SCHEME

getClassName

public String getClassName()

Get the class name of this source.

See Also:

• getJavaClass()
• getPosition()

getJavaClass

public Class<?> getJavaClass()

Get the Java class of this source.

If the Class was not provided, but only the name, this method attempts to lazily load the Class based on its name and throws a PreconditionViolationException if the class cannot be loaded.

See Also:

• getClassName()
• getPosition()

getPosition

public Optional<FilePosition> getPosition()

Get the position in the source file for the associated class, if available.

See Also:

• getClassName()
• getJavaClass()

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object