org.junit.rules

Class Verifier

java.lang.Object

org.junit.rules.Verifier

All Implemented Interfaces:

TestRule

Direct Known Subclasses:

ErrorCollector

public abstract class Verifier
extends java.lang.Object
implements TestRule

Verifier is a base class for Rules like ErrorCollector, which can turn otherwise passing test methods into failing tests if a verification check is failed

     public static class ErrorLogVerifier() {
        private ErrorLog errorLog = new ErrorLog();

        @Rule
        public Verifier verifier = new Verifier() {
           @Override public void verify() {
              assertTrue(errorLog.isEmpty());
           }
        }

        @Test public void testThatMightWriteErrorLog() {
           // ...
        }
     }
 

Since:

4.7

Constructor Summary

Constructors

Constructor and Description
Verifier()

Method Summary

Modifier and Type	Method and Description
Statement	apply(Statement base, Description description) Modifies the method-running Statement to implement this test-running rule.
protected void	verify() Override this to add verification logic.

Methods inherited from class java.lang.Object

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

Constructor Detail

Verifier

public Verifier()

Method Detail

apply

public Statement apply(Statement base,
                       Description description)

Description copied from interface: TestRule

Modifies the method-running Statement to implement this test-running rule.

Specified by:

apply in interface TestRule

Parameters:

base - The Statement to be modified

description - A Description of the test implemented in base

Returns:

a new statement, which may be the same as base, a wrapper around base, or a completely new Statement.

verify

protected void verify()
               throws java.lang.Throwable

Override this to add verification logic. Overrides should throw an exception to indicate that verification failed.

Throws:

java.lang.Throwable