org.apache.commons.jexl.junit

Class Asserter

java.lang.Object

junit.framework.Assert

org.apache.commons.jexl.junit.Asserter

public class Asserter
extends junit.framework.Assert

A utility class for performing JUnit based assertions using Jexl expressions. This class can make it easier to do unit tests using Jexl navigation expressions.

Since:

1.0

Version:

$Revision: 398153 $

Author:

James Strachan

Field Summary

Fields

Modifier and Type	Field and Description
private JexlContext	context context to use during asserts.
private java.util.Map	variables variables used during asserts.

Constructor Summary

Constructors

Constructor and Description
Asserter() Create an asserter.
Asserter(java.lang.Object variableValue) This constructor will register the given variableValue as the "this" variable.

Method Summary

Modifier and Type	Method and Description
void	assertExpression(java.lang.String expression, java.lang.Object expected) Performs an assertion that the value of the given Jexl expression evaluates to the given expected value.
void	setVariable(java.lang.String name, java.lang.Object value) Puts a variable of a certain name in the context so that it can be used from assertion expressions.

Methods inherited from class junit.framework.Assert

assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertEquals, assertFalse, assertFalse, assertNotNull, assertNotNull, assertNotSame, assertNotSame, assertNull, assertNull, assertSame, assertSame, assertTrue, assertTrue, fail, fail, failNotEquals, failNotSame, failSame, format

Methods inherited from class java.lang.Object

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

Field Detail

variables

private final java.util.Map variables

variables used during asserts.

context

private final JexlContext context

context to use during asserts.

Constructor Detail

Asserter

public Asserter()

Create an asserter.

Asserter

public Asserter(java.lang.Object variableValue)

This constructor will register the given variableValue as the "this" variable.

Parameters:

variableValue - 'this'.

Method Detail

assertExpression

public void assertExpression(java.lang.String expression,
                             java.lang.Object expected)
                      throws java.lang.Exception

Performs an assertion that the value of the given Jexl expression evaluates to the given expected value.

Parameters:

expression - is the Jexl expression to evaluate

expected - is the expected value of the expression

Throws:

java.lang.Exception - if the expression could not be evaluationed or an assertion fails

setVariable

public void setVariable(java.lang.String name,
                        java.lang.Object value)

Puts a variable of a certain name in the context so that it can be used from assertion expressions.

Parameters:

name - variable name

value - variable value