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Posted to user@struts.apache.org by Jake Vang <va...@googlemail.com> on 2011/05/13 20:58:57 UTC
unit testing with junit + spring + struts2, NullPointerException with HttpServletRequest
hi,
i am using struts v2.1.8.1 + spring 3.0 + junit 4.0. it should be
noted that i am using convention plugin for spring.
my action class extends ActionSupport and implements
ServletRequestAware and ServletResponseAware. the method i am testing
inside my action class never returns a string literal (i.e. succes,
error, input, etc...), and always returns null. the reason is that i
am not forwarding users to any JSP page, but instead, i am writing
JSON results back out to the response stream.
i need to test my action class, and i have a test class that extends
StrutsSpringTestCase. i followed the example at
http://struts.apache.org/2.1.8.1/docs/struts-2-junit-plugin-tutorial.html,
which was very helpful. however, when my code writes JSON back out
using ServletOutputStream, i get a NullPointerException. The
NullPointerException happens because the HttpServletResponse is null.
(i.e. null pointer happens on ServletOutputStream os =
getHttpServletResponse().getOutputStream()).
is there a step i am missing here that explains why the
HttpServletResponse object/field is null?
is there anyway to test action classes that do not return the usual
string literals but the contents of the output stream?
thank you in advance.
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Re: unit testing with junit + spring + struts2,
NullPointerException with HttpServletRequest
Posted by vbalrog <vb...@free.fr>.
Hello,
Did you manage to solve the problem:
"There is no Action mapped for namespace /myPackage and action name
myAction.
I have the same one, actions mapped with convention annotations are not
found when I try to test it with junit. I have actions mapped into
struts.xml and these ones work perfectly with junit. With the debugging mode
I found that not any of my actions mapped with annotations are found by the
xwork DefaultConfiguration and ConventionUnknownHandler classes.
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Re: unit testing with junit + spring + struts2,
NullPointerException with HttpServletRequest
Posted by jaredtims <ja...@yahoo.com>.
In the link you referenced me to, i'm not sure i understand how to accomplish
"you can modify the configuration value "/WEB-INF/jsp" to the existing class
path,such as "com.foo.bar" to make the convention resolve class path
smoothly"?
I tried setting struts.convention.result.path=com.foo.bar, but it did not
work.
I then tried struts.convention.result.path=/ and it removed the errors, but
now it does not resolve the actions. I get the following error now:
"There is no Action mapped for namespace /myPackage and action name
myAction.
thanks
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Re: unit testing with junit + spring + struts2, NullPointerException
with HttpServletRequest
Posted by "dan.zheng" <cm...@gmail.com>.
I think the action will not affect the unit test process,it only part of the
convention classloader getresource,the workaround is
http://stackoverflow.com/questions/7734695/couldnt-get-resource-paths-for-class-path-resource
hope it will be effective
On Sat, Oct 15, 2011 at 3:13 AM, jaredtims <ja...@yahoo.com> wrote:
> So will the Struts2 jUnit Plugin work with the Struts2 Convention Plugin?
> I
> keep getting errrors such as this:
>
> 2011-10-14 14:15:42,380 WARN
> org.springframework.mock.web.MockServletContext.getResourcePaths:212 -
> Couldn't get resource paths for class path resource [WEB-INF/content/]
> java.io.FileNotFoundException: class path resource [WEB-INF/content/]
> cannot
> be resolved to URL because it does not exist
>
> All our code uses the convention annotations, so I'd rather not have to
> create xml action mappings just so i can run tests against my actions.
> Anybody know any work arounds?
>
> thanks
>
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> View this message in context:
> http://struts.1045723.n5.nabble.com/unit-testing-with-junit-spring-struts2-NullPointerException-with-HttpServletRequest-tp4394036p4903696.html
> Sent from the Struts - User mailing list archive at Nabble.com.
>
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>
Re: unit testing with junit + spring + struts2,
NullPointerException with HttpServletRequest
Posted by jaredtims <ja...@yahoo.com>.
So will the Struts2 jUnit Plugin work with the Struts2 Convention Plugin? I
keep getting errrors such as this:
2011-10-14 14:15:42,380 WARN
org.springframework.mock.web.MockServletContext.getResourcePaths:212 -
Couldn't get resource paths for class path resource [WEB-INF/content/]
java.io.FileNotFoundException: class path resource [WEB-INF/content/] cannot
be resolved to URL because it does not exist
All our code uses the convention annotations, so I'd rather not have to
create xml action mappings just so i can run tests against my actions.
Anybody know any work arounds?
thanks
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Re: unit testing with junit + spring + struts2, NullPointerException
with HttpServletRequest
Posted by Jake Vang <va...@googlemail.com>.
never mind, i tinkered a little bit and read the API docs. if anyone
is interested, here's what i did.
ActionProxy proxy = getActionProxy("/dummy-action");
MyAction action = (MyAction)proxy.getAction();
MockHttpServletResponse response = new MockHttpServletResponse();
action.setServletResponse(response);
String result = action.dummyAction();
Assert.assertNull(result); //should always be null
String json = response.getContentAsString();
Assert.assertNotNull(json); //shouldn't be null
On Fri, May 13, 2011 at 2:58 PM, Jake Vang <va...@googlemail.com> wrote:
> hi,
>
> i am using struts v2.1.8.1 + spring 3.0 + junit 4.0. it should be
> noted that i am using convention plugin for spring.
>
> my action class extends ActionSupport and implements
> ServletRequestAware and ServletResponseAware. the method i am testing
> inside my action class never returns a string literal (i.e. succes,
> error, input, etc...), and always returns null. the reason is that i
> am not forwarding users to any JSP page, but instead, i am writing
> JSON results back out to the response stream.
>
> i need to test my action class, and i have a test class that extends
> StrutsSpringTestCase. i followed the example at
> http://struts.apache.org/2.1.8.1/docs/struts-2-junit-plugin-tutorial.html,
> which was very helpful. however, when my code writes JSON back out
> using ServletOutputStream, i get a NullPointerException. The
> NullPointerException happens because the HttpServletResponse is null.
> (i.e. null pointer happens on ServletOutputStream os =
> getHttpServletResponse().getOutputStream()).
>
> is there a step i am missing here that explains why the
> HttpServletResponse object/field is null?
>
> is there anyway to test action classes that do not return the usual
> string literals but the contents of the output stream?
>
> thank you in advance.
>
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