Package org.springframework.test.util

Class XpathExpectationsHelper

java.lang.Object

org.springframework.test.util.XpathExpectationsHelper

public class XpathExpectationsHelper
extends Object

A helper class for applying assertions via XPath expressions.

Since:

3.2

Author:

Rossen Stoyanchev

Constructor Summary

Constructors

Constructor	Description
XpathExpectationsHelper(String expression, Map<String,String> namespaces, Object... args)	XpathExpectationsHelper constructor.

Method Summary

Modifier and Type	Method	Description
void	assertBoolean(byte[] content, String encoding, boolean expectedValue)	Apply the XPath expression and assert the resulting content as a Boolean.
void	assertNode(byte[] content, String encoding, Matcher<? super Node> matcher)	Parse the content, evaluate the XPath expression as a Node, and assert it with the given Matcher<Node>.
void	assertNodeCount(byte[] content, String encoding, int expectedCount)	Apply the XPath expression and assert the resulting content as an integer.
void	assertNodeCount(byte[] content, String encoding, Matcher<? super Integer> matcher)	Apply the XPath expression and assert the resulting content with the given Hamcrest matcher.
void	assertNodeList(byte[] content, String encoding, Matcher<? super NodeList> matcher)	Parse the content, evaluate the XPath expression as a NodeList, and assert it with the given Matcher<NodeList>.
void	assertNumber(byte[] content, String encoding, Double expectedValue)	Apply the XPath expression and assert the resulting content as a Double.
void	assertNumber(byte[] content, String encoding, Matcher<? super Double> matcher)	Apply the XPath expression and assert the resulting content with the given Hamcrest matcher.
void	assertString(byte[] content, String encoding, String expectedValue)	Apply the XPath expression and assert the resulting content as a String.
void	assertString(byte[] content, String encoding, Matcher<? super String> matcher)	Apply the XPath expression and assert the resulting content with the given Hamcrest matcher.
void	doesNotExist(byte[] content, String encoding)	Apply the XPath expression and assert the resulting content does not exist.
<T> T	evaluateXpath(byte[] content, String encoding, Class<T> targetClass)	Evaluate the XPath and return the resulting value.
protected <T> T	evaluateXpath(Document document, QName evaluationType, Class<T> expectedClass)	Apply the XPath expression to given document.
void	exists(byte[] content, String encoding)	Apply the XPath expression and assert the resulting content exists.
protected XPathExpression	getXpathExpression()	Return the compiled XPath expression.
protected Document	parseXmlByteArray(byte[] xml, String encoding)	Parse the given XML content to a Document.

Methods inherited from class java.lang.Object

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

Constructor Details

XpathExpectationsHelper

public XpathExpectationsHelper(String expression,
 @Nullable
 Map<String,String> namespaces,
 Object... args)
                        throws XPathExpressionException

XpathExpectationsHelper constructor.

Parameters:

expression - the XPath expression

namespaces - the XML namespaces referenced in the XPath expression, or null

args - arguments to parameterize the XPath expression with using the formatting specifiers defined in String.format(String, Object...)

Throws:

XPathExpressionException - if expression compilation failed

Method Details

getXpathExpression

protected XPathExpression getXpathExpression()

Return the compiled XPath expression.

assertNode

public void assertNode(byte[] content,
 @Nullable
 String encoding,
 Matcher<? super Node> matcher)
                throws Exception

Parse the content, evaluate the XPath expression as a Node, and assert it with the given Matcher<Node>.

Throws:

Exception

assertNodeList

public void assertNodeList(byte[] content,
 @Nullable
 String encoding,
 Matcher<? super NodeList> matcher)
                    throws Exception

Parse the content, evaluate the XPath expression as a NodeList, and assert it with the given Matcher<NodeList>.

Throws:

Exception

Since:

5.2.2

exists

public void exists(byte[] content,
 @Nullable
 String encoding)
            throws Exception

Apply the XPath expression and assert the resulting content exists.

Throws:

Exception - if content parsing or expression evaluation fails

doesNotExist

public void doesNotExist(byte[] content,
 @Nullable
 String encoding)
                  throws Exception

Apply the XPath expression and assert the resulting content does not exist.

Throws:

Exception - if content parsing or expression evaluation fails

assertNodeCount

public void assertNodeCount(byte[] content,
 @Nullable
 String encoding,
 Matcher<? super Integer> matcher)
                     throws Exception

Apply the XPath expression and assert the resulting content with the given Hamcrest matcher.

Throws:

Exception - if content parsing or expression evaluation fails

assertNodeCount

public void assertNodeCount(byte[] content,
 @Nullable
 String encoding,
 int expectedCount)
                     throws Exception

Apply the XPath expression and assert the resulting content as an integer.

Throws:

Exception - if content parsing or expression evaluation fails

assertString

public void assertString(byte[] content,
 @Nullable
 String encoding,
 Matcher<? super String> matcher)
                  throws Exception

Apply the XPath expression and assert the resulting content with the given Hamcrest matcher.

Throws:

Exception - if content parsing or expression evaluation fails

assertString

public void assertString(byte[] content,
 @Nullable
 String encoding,
 String expectedValue)
                  throws Exception

Apply the XPath expression and assert the resulting content as a String.

Throws:

Exception - if content parsing or expression evaluation fails

assertNumber

public void assertNumber(byte[] content,
 @Nullable
 String encoding,
 Matcher<? super Double> matcher)
                  throws Exception

Apply the XPath expression and assert the resulting content with the given Hamcrest matcher.

Throws:

Exception - if content parsing or expression evaluation fails

assertNumber

public void assertNumber(byte[] content,
 @Nullable
 String encoding,
 Double expectedValue)
                  throws Exception

Apply the XPath expression and assert the resulting content as a Double.

Throws:

Exception - if content parsing or expression evaluation fails

assertBoolean

public void assertBoolean(byte[] content,
 @Nullable
 String encoding,
 boolean expectedValue)
                   throws Exception

Apply the XPath expression and assert the resulting content as a Boolean.

Throws:

Exception - if content parsing or expression evaluation fails

evaluateXpath

@Nullable
public <T> T evaluateXpath(byte[] content,
 @Nullable
 String encoding,
 Class<T> targetClass)
                    throws Exception

Evaluate the XPath and return the resulting value.

Parameters:

content - the content to evaluate against

encoding - the encoding to use (optionally)

targetClass - the target class, one of Number, String, Boolean, org.w3c.Node, or NodeList

Throws:

Exception - if content parsing or expression evaluation fails

Since:

5.1

parseXmlByteArray

protected Document parseXmlByteArray(byte[] xml,
 @Nullable
 String encoding)
                              throws Exception

Parse the given XML content to a Document.

Parameters:

xml - the content to parse

encoding - optional content encoding, if provided as metadata (for example, in HTTP headers)

Returns:

the parsed document

Throws:

Exception

evaluateXpath

@Nullable
protected <T> T evaluateXpath(Document document,
 QName evaluationType,
 Class<T> expectedClass)
                       throws XPathExpressionException

Apply the XPath expression to given document.

Throws:

XPathExpressionException - if expression evaluation failed