org.apache.wicket.util.tester

Class WicketTester

java.lang.Object

org.apache.wicket.util.tester.BaseWicketTester

org.apache.wicket.util.tester.WicketTester

public class WicketTester
extends BaseWicketTester

A helper class to ease unit testing of Wicket applications without the need for a servlet container. To start a test, either use startPage or startPanel:

 // production page
 public class MyPage extends WebPage
 {
        public MyPage()
        {
                add(new Label("myMessage", "Hello!"));
                add(new Link("toYourPage")
                {
                        public void onClick()
                        {
                                setResponsePage(new YourPage("Hi!"));
                        }
                });
        }
 }
 

 // test code
 private WicketTester tester;
 
 public void setUp()
 {
        tester = new WicketTester();
 }
 
 public void testRenderMyPage()
 {
        // start and render the test page
        tester.startPage(MyPage.class);
        // assert rendered page class
        tester.assertRenderedPage(MyPage.class);
        // assert rendered label component
        tester.assertLabel("myMessage", "Hello!");
 }
 

The above example is straight forward: start MyPage.class and assert Label it rendered. Next, we try to navigate through a Link:

 // production page
 public class YourPage extends WebPage
 {
        public YourPage(String message)
        {
                add(new Label("yourMessage", message));
                info("Wicket Rocks ;-)");
        }
 }
 
 // test code
 public void testLinkToYourPage()
 {
        tester.startPage(MyPage.class);
        // click link and render
        tester.clickLink("toYourPage");
        tester.assertRenderedPage(YourPage.class);
        tester.assertLabel("yourMessage", "Hi!");
 }
 

tester.clickLink(path); will simulate user click on the component (in this case, it's a Link) and render the response page YourPage. Ok, unit test of MyPage is completed. Now we test YourPage standalone:

 // test code
 public void testRenderYourPage()
 {
        // provide page instance source for WicketTester
        tester.startPage(new YourPage("mock message"));
        tester.assertRenderedPage(YourPage.class);
        tester.assertLabel("yourMessage", "mock message");
        // assert feedback messages in INFO Level
        tester.assertInfoMessages(new String[] { "Wicket Rocks ;-)" });
 }
 

Many methods require a 'path' parameter. E.g. the page relative path can be obtained via Component.getPageRelativePath(). Since each Component has an ID/name, any Component can also be referenced by its ID MarkupContainer.get(String). And since MarkupContainer's and its subclasses are containers which allow to add Components (in sync with the markup hierarchy), you may not only access direct childs but also subchilds like get("myPanel:myForm:myNameField") separating each ID with a ':'. Cookie handling: There are some expectations about wicket tester cookie handling which should match as best as it can be with a real client server request response cycle: - all valid cookies set before a request is made (tester.getRequest().addCookie()) should appear in the page request - all cookies set in the response should appear in the last response (tester.getLastResponse()) after the request is made (expired cookies and others) - all cookies set in the response should appear even after a redirect response is made until the final response (tester.getLastResponse()) is written to the client (wicket tester) - all valid cookies (maxAge!=0) from the last response should be added to the next request cookies (tester.getRequest().getCookies()) TODO General: Example usage of FormTester

Since:

1.2.6

Author:

Ingram Chen, Juergen Donnerstag, Frank Bille

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wicket.util.tester.BaseWicketTester

BaseWicketTester.StartComponentInPage

Constructor Summary

Constructors

Constructor and Description
WicketTester() Creates a WicketTester and automatically creates a WebApplication, but the tester will have no home page.
WicketTester(Class<? extends Page> homePage) Creates a WicketTester and automatically creates a WebApplication.
WicketTester(WebApplication application) Creates a WicketTester.
WicketTester(WebApplication application, javax.servlet.ServletContext servletCtx) Creates a WicketTester to help unit testing.
WicketTester(WebApplication application, String path) Creates a WicketTester to help unit testing.

Method Summary

Methods

Modifier and Type	Method and Description
void	assertAjaxLocation() Asserts that the Ajax location header is present.
void	assertBookmarkablePageLink(String id, Class<? extends WebPage> pageClass, PageParameters parameters) Asserts that that the BookmarkablePageLink identified by "id" points to the page as expected - including parameters.
void	assertComponent(String path, Class<? extends Component> expectedComponentClass) Asserts a Component class.
void	assertComponentFeedbackMessage(Component component, String key, IModel<?> model, IFeedbackMessageFilter filter) Asserts that there is a feedback message provided by a given component
void	assertComponentOnAjaxResponse(Component component) Tests that a Component has been added to a AjaxRequestTarget, using AjaxRequestTarget.add(Component...).
void	assertComponentOnAjaxResponse(String componentPath) Tests that a Component has been added to a AjaxRequestTarget, using AjaxRequestTarget.add(Component...).
void	assertContains(String pattern) Asserts the content of last rendered page contains (matches) a given regex pattern.
void	assertContainsNot(String pattern) The opposite of assertContains(String).
void	assertDisabled(String path) assert component is enabled.
void	assertEnabled(String path) assert component is enabled.
void	assertErrorMessages(Serializable... expectedErrorMessages) Asserts error-level feedback messages.
void	assertFeedback(String path, Serializable... messages) Assert that a particular feedback panel is rendering certain messages.
void	assertFeedbackMessages(IFeedbackMessageFilter filter, Serializable... expectedMessages) Assert there are feedback messages accepted by the provided filter.
void	assertInfoMessages(Serializable... expectedInfoMessages) Assert info-level feedback messages.
void	assertInvisible(String path) Asserts that a Component is invisible.
void	assertLabel(String path, String expectedLabelText) Asserts the text of a Label Component.
void	assertListView(String path, List<?> expectedList) Asserts the model of a ListView.
void	assertModelValue(String path, Object expectedValue) Asserts the model value of a component.
void	assertNoErrorMessage() Asserts no error-level feedback messages.
void	assertNoFeedbackMessage(int level) Asserts there are no feedback messages with a certain level.
void	assertNoInfoMessage() Asserts no info-level feedback messages.
void	assertRedirectUrl(String expectedRedirectUrl) Assert that the last request redirected to the given Url.
void	assertRenderedPage(Class<? extends Page> expectedRenderedPageClass) Asserts a last-rendered Page class.
void	assertRequired(String path) assert form component is required.
void	assertResultPage(Class<?> clazz, String filename) Asserts last-rendered Page against an expected HTML document.
void	assertResultPage(String expectedDocument) Asserts last-rendered Page against an expected HTML document as a String
void	assertUsability(Component component) Checks whether a component is visible and/or enabled before usage
void	assertVisible(String path) Asserts that a Component is visible.
void	clickLink(Component link)
void	executeBehavior(Class<?> testClass, AbstractAjaxBehavior behavior, String filename)
void	executeListener(Class<?> testClass, Component component, String filename)
<T extends Page> void	executeTest(Class<?> testClass, Class<T> pageClass, PageParameters parameters, String filename) Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.
<T extends Page> void	executeTest(Class<?> testClass, Class<T> pageClass, String filename) Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.
void	executeTest(Class<?> testClass, Component component, String filename) Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.
void	executeTest(Class<?> testClass, Page page, String filename) Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.
static String	getBasedir() Returns the current Maven build directory taken from the basedir system property, or null if not set

Methods inherited from class org.apache.wicket.util.tester.BaseWicketTester

addRequestHeader, applyRequest, checkUsability, cleanupFeedbackMessages, clearFeedbackMessages, clickLink, clickLink, createPage, createPageMarkup, debugComponentTrees, debugComponentTrees, destroy, dumpPage, executeAjaxEvent, executeAjaxEvent, executeAjaxUrl, executeAllTimerBehaviors, executeBehavior, executeListener, executeListener, executeUrl, getApplication, getComponentFromLastRenderedPage, getComponentFromLastRenderedPage, getContentDispositionFromResponseHeader, getContentLengthFromResponseHeader, getContentTypeFromResponseHeader, getFeedbackMessages, getHttpSession, getLastModifiedFromResponseHeader, getLastRenderedPage, getLastRequest, getLastResponse, getLastResponseAsString, getMessages, getPreviousRequests, getPreviousResponses, getRequest, getRequestCycle, getResourcePollFrequency, getResponse, getServletContext, getSession, getTagById, getTagByWicketId, getTagsByWicketId, getWicketAjaxBaseUrlEncodedInLastResponse, hasLabel, hasNoErrorMessage, hasNoFeedbackMessage, hasNoInfoMessage, ifContains, ifContainsNot, invokeListener, isComponent, isComponentOnAjaxResponse, isDisabled, isEnabled, isEqual, isExposeExceptions, isFollowRedirects, isInvisible, isRenderedPage, isRequired, isRequired, isResultPage, isUseRequestUrlAsBase, isVisible, newFormTester, newFormTester, newServletWebResponse, newTestPageManagerProvider, processRequest, processRequest, processRequest, processRequest, processRequest, setExposeExceptions, setFollowRedirects, setRequest, setUseRequestUrlAsBase, startComponentInPage, startComponentInPage, startComponentInPage, startComponentInPage, startPage, startPage, startPage, startPage, startResource, startResourceReference, startResourceReference, submitForm, submitForm, urlFor, urlFor, urlFor

Methods inherited from class java.lang.Object

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

Constructor Detail

WicketTester

public WicketTester()

Creates a WicketTester and automatically creates a WebApplication, but the tester will have no home page.

WicketTester

public WicketTester(Class<? extends Page> homePage)

Creates a WicketTester and automatically creates a WebApplication.

Parameters:

homePage - a home page Class

WicketTester

public WicketTester(WebApplication application)

Creates a WicketTester.

Parameters:

application - a WicketTester WebApplication object

WicketTester

public WicketTester(WebApplication application,
            String path)

Creates a WicketTester to help unit testing.

Parameters:

application - a WicketTester WebApplication object

path - the absolute path on disk to the web application's contents (e.g. war root) - may be null

See Also:

MockApplication.MockApplication()

WicketTester

public WicketTester(WebApplication application,
            javax.servlet.ServletContext servletCtx)

Creates a WicketTester to help unit testing.

Parameters:

application - a WicketTester WebApplication object

servletCtx - the servlet context used as backend

Method Detail

assertAjaxLocation

public void assertAjaxLocation()

Asserts that the Ajax location header is present.

assertComponent

public void assertComponent(String path,
                   Class<? extends Component> expectedComponentClass)

Asserts a Component class.

Parameters:

path - path to Component

expectedComponentClass - expected Component class

assertComponentOnAjaxResponse

public void assertComponentOnAjaxResponse(Component component)

Tests that a Component has been added to a AjaxRequestTarget, using AjaxRequestTarget.add(Component...). This method actually tests that a Component is on the Ajax response sent back to the client.

PLEASE NOTE! This method doesn't actually insert the Component in the client DOM tree, using JavaScript. But it shouldn't be needed because you just have to trust that Wicket Ajax JavaScript works.

Parameters:

component - a Component to be tested

assertComponentOnAjaxResponse

public void assertComponentOnAjaxResponse(String componentPath)

Tests that a Component has been added to a AjaxRequestTarget, using AjaxRequestTarget.add(Component...). This method actually tests that a Component is on the Ajax response sent back to the client.

PLEASE NOTE! This method doesn't actually insert the Component in the client DOM tree, using JavaScript. But it shouldn't be needed because you just have to trust that Wicket Ajax JavaScript works.

Parameters:

componentPath - a Component path to test

assertContains

public void assertContains(String pattern)

Asserts the content of last rendered page contains (matches) a given regex pattern.

Parameters:

pattern - a reqex pattern to match

assertContainsNot

public void assertContainsNot(String pattern)

The opposite of assertContains(String).

Parameters:

pattern - pattern

assertErrorMessages

public void assertErrorMessages(Serializable... expectedErrorMessages)

Asserts error-level feedback messages.

Parameters:

expectedErrorMessages - expected error messages

assertInfoMessages

public void assertInfoMessages(Serializable... expectedInfoMessages)

Assert info-level feedback messages.

Parameters:

expectedInfoMessages - expected info messages

assertFeedbackMessages

public void assertFeedbackMessages(IFeedbackMessageFilter filter,
                          Serializable... expectedMessages)

Assert there are feedback messages accepted by the provided filter.

Parameters:

filter - the filter that will decide which messages to check

expectedMessages - expected feedback messages

assertComponentFeedbackMessage

public void assertComponentFeedbackMessage(Component component,
                                  String key,
                                  IModel<?> model,
                                  IFeedbackMessageFilter filter)

Asserts that there is a feedback message provided by a given component

Parameters:

component - the component that provided the expected feedback message. Optional.

key - the resource key for the feedback message. Mandatory.

model - the model used for interpolating the feedback message. Optional.

filter - the filter that decides in which messages to look in. E.g. with a specific level, rendered or not, etc.

assertFeedback

public void assertFeedback(String path,
                  Serializable... messages)

Assert that a particular feedback panel is rendering certain messages. NOTE: this casts the component at the specified path to a FeedbackPanel, so it will not work with custom IFeedback implementations unless you are subclassing FeedbackPanel

Parameters:

path - path to the feedback panel

messages - messages expected to be rendered

assertInvisible

public void assertInvisible(String path)

Asserts that a Component is invisible.

Parameters:

path - path to Component

assertLabel

public void assertLabel(String path,
               String expectedLabelText)

Asserts the text of a Label Component.

Parameters:

path - path to Label Component

expectedLabelText - expected text of the Label

assertModelValue

public void assertModelValue(String path,
                    Object expectedValue)

Asserts the model value of a component.

Parameters:

path - path to the component on the page

expectedValue - expected value of the component's model

assertListView

public void assertListView(String path,
                  List<?> expectedList)

Asserts the model of a ListView.

Overrides:

assertListView in class BaseWicketTester

Parameters:

path - path to a ListView Component

expectedList - expected List in the model of the given ListView

assertNoErrorMessage

public void assertNoErrorMessage()

Asserts no error-level feedback messages.

assertNoInfoMessage

public void assertNoInfoMessage()

Asserts no info-level feedback messages.

assertNoFeedbackMessage

public void assertNoFeedbackMessage(int level)

Asserts there are no feedback messages with a certain level.

assertRenderedPage

public void assertRenderedPage(Class<? extends Page> expectedRenderedPageClass)

Asserts a last-rendered Page class.

Parameters:

expectedRenderedPageClass - expected class of last rendered Page

assertResultPage

public void assertResultPage(Class<?> clazz,
                    String filename)
                      throws Exception

Asserts last-rendered Page against an expected HTML document.

Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.

Overrides:

assertResultPage in class BaseWicketTester

Parameters:

clazz - Class used to load the file (relative to clazz package)

filename - expected output filename String

Throws:

Exception

assertResultPage

public void assertResultPage(String expectedDocument)
                      throws Exception

Asserts last-rendered Page against an expected HTML document as a String

Parameters:

expectedDocument - expected output String

Throws:

Exception

assertVisible

public void assertVisible(String path)

Asserts that a Component is visible.

Parameters:

path - path to a Component

assertEnabled

public void assertEnabled(String path)

assert component is enabled.

Parameters:

path - path to component

assertDisabled

public void assertDisabled(String path)

assert component is enabled.

Parameters:

path - path to component

assertRequired

public void assertRequired(String path)

assert form component is required.

Parameters:

path - path to form component

assertUsability

public void assertUsability(Component component)

Checks whether a component is visible and/or enabled before usage

Parameters:

component -

clickLink

public void clickLink(Component link)

Parameters:

link -

assertBookmarkablePageLink

public void assertBookmarkablePageLink(String id,
                              Class<? extends WebPage> pageClass,
                              PageParameters parameters)

Asserts that that the BookmarkablePageLink identified by "id" points to the page as expected - including parameters.

Parameters:

id -

pageClass -

parameters -

executeTest

public <T extends Page> void executeTest(Class<?> testClass,
                                Class<T> pageClass,
                                String filename)
                 throws Exception

Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.

Type Parameters:

T -

Parameters:

testClass -

pageClass -

filename -

Throws:

Exception

executeTest

public void executeTest(Class<?> testClass,
               Page page,
               String filename)
                 throws Exception

Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.

Parameters:

testClass -

page -

filename -

Throws:

Exception

executeTest

public void executeTest(Class<?> testClass,
               Component component,
               String filename)
                 throws Exception

Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.

Parameters:

testClass -

component -

filename -

Throws:

Exception

executeTest

public <T extends Page> void executeTest(Class<?> testClass,
                                Class<T> pageClass,
                                PageParameters parameters,
                                String filename)
                 throws Exception

Use -Dwicket.replace.expected.results=true to automatically replace the expected output file.

Type Parameters:

T -

Parameters:

testClass -

pageClass -

parameters -

filename -

Throws:

Exception

executeListener

public void executeListener(Class<?> testClass,
                   Component component,
                   String filename)
                     throws Exception

Parameters:

testClass -

component -

filename -

Throws:

Exception

executeBehavior

public void executeBehavior(Class<?> testClass,
                   AbstractAjaxBehavior behavior,
                   String filename)
                     throws Exception

Parameters:

testClass -

behavior -

filename -

Throws:

Exception

assertRedirectUrl

public void assertRedirectUrl(String expectedRedirectUrl)

Assert that the last request redirected to the given Url.

Parameters:

expectedRedirectUrl - expected

getBasedir

public static String getBasedir()

Returns the current Maven build directory taken from the basedir system property, or null if not set

Returns:

path with a trailing slash