Package org.springframework.test.util

Class ExceptionCollector

java.lang.Object

org.springframework.test.util.ExceptionCollector

public class ExceptionCollector
extends Object

ExceptionCollector is a test utility for executing code blocks, collecting exceptions, and generating a single AssertionError containing any exceptions encountered as suppressed exceptions.

This utility is intended to support soft assertion use cases similar to the SoftAssertions support in AssertJ and the assertAll() support in JUnit Jupiter.

Since:

5.3.10

Author:

Sam Brannen

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ExceptionCollector.Executable	Executable is a functional interface that can be used to implement any generic block of code that potentially throws a Throwable.

Constructor Summary

Constructors

Constructor	Description
ExceptionCollector()

Method Summary

Modifier and Type	Method	Description
void	assertEmpty()	Assert that this ExceptionCollector does not contain any exceptions.
void	execute(ExceptionCollector.Executable executable)	Execute the supplied ExceptionCollector.Executable and track any exception thrown.
List<Throwable>	getExceptions()	Get the list of exceptions encountered in execute(Executable).

Methods inherited from class java.lang.Object

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

Constructor Details

ExceptionCollector

public ExceptionCollector()

Method Details

execute

public void execute(ExceptionCollector.Executable executable)

Execute the supplied ExceptionCollector.Executable and track any exception thrown.

Parameters:

executable - the Executable to execute

See Also:

• getExceptions()
• assertEmpty()

getExceptions

public List<Throwable> getExceptions()

Get the list of exceptions encountered in execute(Executable).

Returns:

an unmodifiable copy of the list of exceptions, potentially empty

See Also:

• assertEmpty()

assertEmpty

public void assertEmpty()
                 throws Exception

Assert that this ExceptionCollector does not contain any exceptions.

If this collector is empty, this method is effectively a no-op.

If this collector contains a single Error or Exception, this method rethrows the error or exception.

If this collector contains a single Throwable, this method throws an AssertionError with the error message of the Throwable and with the Throwable as the cause.

If this collector contains multiple exceptions, this method throws an AssertionError whose message is "Multiple Exceptions (#):" followed by a new line with the error message of each exception separated by a new line, with # replaced with the number of exceptions present. In addition, each exception will be added to the AssertionError as a suppressed exception.

Throws:

Exception

See Also:

• execute(Executable)
• getExceptions()