All Known Implementing Classes:

AbstractTestDescriptor, ClassTestDescriptor, EngineDescriptor, JupiterEngineDescriptor, JupiterTestDescriptor, MethodBasedTestDescriptor, NestedClassTestDescriptor, RunnerTestDescriptor, TestFactoryTestDescriptor, TestMethodTestDescriptor, TestTemplateInvocationTestDescriptor, TestTemplateTestDescriptor, VintageTestDescriptor
```
@API(status=STABLE,
     since="1.0")
public interface TestDescriptor
```
Mutable descriptor for a test or container that has been discovered by a TestEngine.

Since:

1.0

See Also:

TestEngine

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`TestDescriptor.Type`	Supported types for `TestDescriptors`.
`static interface`	`TestDescriptor.Visitor`	Visitor for the tree-like `TestDescriptor` structure.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default void`	`accept(TestDescriptor.Visitor visitor)`	Accept a `TestDescriptor.Visitor` to the subtree starting with this descriptor.
`void`	`addChild(TestDescriptor descriptor)`	Add a child to this descriptor.
`static boolean`	`containsTests(TestDescriptor testDescriptor)`	Determine if the supplied descriptor (or any of its descendants) is a test or may potentially register tests dynamically.
`Optional<? extends TestDescriptor>`	`findByUniqueId(UniqueId uniqueId)`	Find the descriptor with the supplied unique ID.
`Set<? extends TestDescriptor>`	`getChildren()`	Get the immutable set of children of this descriptor.
`default Set<? extends TestDescriptor>`	`getDescendants()`	Get the immutable set of all descendants of this descriptor.
`String`	`getDisplayName()`	Get the display name for this descriptor.
`default String`	`getLegacyReportingName()`	Get the name of this descriptor in a format that is suitable for legacy reporting infrastructure — for example, for reporting systems built on the Ant-based XML reporting format for JUnit 4.
`Optional<TestDescriptor>`	`getParent()`	Get the parent of this descriptor, if available.
`Optional<TestSource>`	`getSource()`	Get the source of the test or container described by this descriptor, if available.
`Set<TestTag>`	`getTags()`	Get the set of tags associated with this descriptor.
`TestDescriptor.Type`	`getType()`	Determine the `TestDescriptor.Type` of this descriptor.
`UniqueId`	`getUniqueId()`	Get the unique identifier (UID) for this descriptor.
`default boolean`	`isContainer()`	Determine if this descriptor describes a container.
`default boolean`	`isRoot()`	Determine if this descriptor is a root descriptor.
`default boolean`	`isTest()`	Determine if this descriptor describes a test.
`default boolean`	`mayRegisterTests()`	Determine if this descriptor may register dynamic tests during execution.
`default void`	`prune()`	Remove this descriptor from the hierarchy unless it is a root or contains tests.
`void`	`removeChild(TestDescriptor descriptor)`	Remove a child from this descriptor.
`void`	`removeFromHierarchy()`	Remove this non-root descriptor from its parent and remove all the children from this descriptor.
`void`	`setParent(TestDescriptor parent)`	Set the parent of this descriptor.

- Method Detail
  - getUniqueId
```
UniqueId getUniqueId()
```
    Get the unique identifier (UID) for this descriptor.
    Uniqueness must be guaranteed across an entire test plan, regardless of how many engines are used behind the scenes.
    
    Returns:
    
    the UniqueId for this descriptor; never null
  - getDisplayName
```
String getDisplayName()
```
    Get the display name for this descriptor.
    A display name is a human-readable name for a test or container that is typically used for test reporting in IDEs and build tools. Display names may contain spaces, special characters, and emoji, and the format may be customized by TestEngines or potentially by end users as well. Consequently, display names should never be parsed; rather, they should be used for display purposes only.
    
    Returns:
    
    the display name for this descriptor; never null or blank
    
    See Also:
    
    getSource()
  - getLegacyReportingName
```
default String getLegacyReportingName()
```
    Get the name of this descriptor in a format that is suitable for legacy reporting infrastructure — for example, for reporting systems built on the Ant-based XML reporting format for JUnit 4.
    The default implementation simply delegates to getDisplayName().
    
    Returns:
    
    the legacy reporting name; never null or blank
  - getTags
```
Set<TestTag> getTags()
```
    Get the set of tags associated with this descriptor.
    
    Returns:
    
    the set of tags associated with this descriptor; never null but potentially empty
    
    See Also:
    
    TestTag
  - getSource
```
Optional<TestSource> getSource()
```
    Get the source of the test or container described by this descriptor, if available.
    
    See Also:
    
    TestSource
  - getParent
```
Optional<TestDescriptor> getParent()
```
    Get the parent of this descriptor, if available.
  - setParent
```
void setParent(TestDescriptor parent)
```
    Set the parent of this descriptor.
    
    Parameters:
    
    parent - the new parent of this descriptor; may be null.
  - getChildren
```
Set<? extends TestDescriptor> getChildren()
```
    Get the immutable set of children of this descriptor.
    
    Returns:
    
    the set of children of this descriptor; neither null nor mutable, but potentially empty
    
    See Also:
    
    getDescendants()
  - getDescendants
```
default Set<? extends TestDescriptor> getDescendants()
```
    Get the immutable set of all descendants of this descriptor.
    A descendant is a child of this descriptor or a child of one of its children, recursively.
    
    See Also:
    
    getChildren()
  - addChild
```
void addChild(TestDescriptor descriptor)
```
    Add a child to this descriptor.
    
    Parameters:
    
    descriptor - the child to add to this descriptor; never null
  - removeChild
```
void removeChild(TestDescriptor descriptor)
```
    Remove a child from this descriptor.
    
    Parameters:
    
    descriptor - the child to remove from this descriptor; never null
  - removeFromHierarchy
```
void removeFromHierarchy()
```
    Remove this non-root descriptor from its parent and remove all the children from this descriptor.
    If this method is invoked on a root descriptor, this method must throw a JUnitException explaining that a root cannot be removed from the hierarchy.
  - isRoot
```
default boolean isRoot()
```
    Determine if this descriptor is a root descriptor.
    A root descriptor is a descriptor without a parent.
  - getType
```
TestDescriptor.Type getType()
```
    Determine the TestDescriptor.Type of this descriptor.
    
    Returns:
    
    the descriptor type; never null.
    
    See Also:
    
    isContainer(), isTest()
  - isContainer
```
default boolean isContainer()
```
    Determine if this descriptor describes a container.
    The default implementation delegates to TestDescriptor.Type.isContainer().
  - isTest
```
default boolean isTest()
```
    Determine if this descriptor describes a test.
    The default implementation delegates to TestDescriptor.Type.isTest().
  - mayRegisterTests
```
default boolean mayRegisterTests()
```
    Determine if this descriptor may register dynamic tests during execution.
    The default implementation assumes tests are usually known during discovery and thus returns false.
  - containsTests
```
static boolean containsTests(TestDescriptor testDescriptor)
```
    Determine if the supplied descriptor (or any of its descendants) is a test or may potentially register tests dynamically.
    
    Parameters:
    
    testDescriptor - the TestDescriptor to check for tests; never null
    
    Returns:
    
    true if the descriptor is a test, contains tests, or may later register tests dynamically
  - prune
```
default void prune()
```
    Remove this descriptor from the hierarchy unless it is a root or contains tests.
    A concrete TestEngine may override this method in order to implement a different algorithm or to skip pruning altogether.
    
    See Also:
    
    isRoot(), containsTests(TestDescriptor), removeFromHierarchy()
  - findByUniqueId
```
Optional<? extends TestDescriptor> findByUniqueId(UniqueId uniqueId)
```
    Find the descriptor with the supplied unique ID.
    The search algorithm begins with this descriptor and then searches through its descendants.
    
    Parameters:
    
    uniqueId - the UniqueId to search for; never null
  - accept
```
default void accept(TestDescriptor.Visitor visitor)
```
    Accept a TestDescriptor.Visitor to the subtree starting with this descriptor.
    
    Parameters:
    
    visitor - the Visitor to accept; never null

Interface TestDescriptor

Nested Class Summary

Method Summary

Method Detail

getUniqueId

getDisplayName

getLegacyReportingName

getTags

getSource

getParent

setParent

getChildren

getDescendants

addChild

removeChild

removeFromHierarchy

isRoot

getType

isContainer

isTest

mayRegisterTests

containsTests

prune

findByUniqueId

accept