Junit4 Learning (5) Use httpunit to test html

Test 1: Test whether the webpage exists:

To test whether a webpage exists, simply use the getresponse () method of webconversation. For example:

Webconversation = new webconversation ();

Webconversation. getresponse (

Too many bytes have been written "http: // localhost: 8080/httpunit /");

If the webpage cannot be found, httpnotfoundexception will be triggered. Because it is not an asserted error, an error will be generated in JUnit.

Test 2: Get, post:

You can use getmethodwebrequest or postmethodwebrequest to send a get or POST request separately. For example:

Webconversation = new webconversation ();

Webrequest request = new getmethodwebrequest ("http: // localhost: 8080/httpunit /");

Webresponse response = webconversation. getresponse (request );

To increase the number of parameters in a request, you can use the setparamter () method, for example:

Request. setparameter ("username", "taobaoge ");

Test 3: Obtain table information:

You can obtain the relevant HTML information from webresponse. Assume that the webpage contains the following table:

Book name	Design Pattern)
Software Version	None
Book version	Version 2
Modification time	2004/12/26

The followingProgramDemonstrate how to obtain table-related information for testing:

Webconversation = new webconversation ();

Webresponse response = webconversation. getresponse ("http: // localhost: 8080/httpunit/tabletest. jsp ");

Webtable = response. gettables () [0];

Assertequals (2, webtable. getcolumncount ());

Tablecell cell = webtable. gettablecell (2, 0 );

Assertequals ("book version", cell. gettext ());

Test 4: Follow hyperlink:

There are many hyperlinks in the webpage. We can use httpunit to simulate hyperlink clicks. For example, if a hyperlink in the webpage is as follows:

<A href = "httpunitabc. jsp"> httpunit ABC </a>

You can use the following program to quarrel with the link, and then simulate a click action to follow the hyperlink:

Webconversation = new webconversation ();

Webresponse response = webconversation. getresponse ("http: // localhost: 8080/httpunit /");

Weblink link = response. getlinkwith ("httpunit ABC ");

Webrequest clickrequest = link. getrequest ();

Webresponse linkpage = webconversation. getresponse (clickrequest );

Test 5: Test COOKIE:

If the tested webpage requires cookie information, you can use the addcookie () method of webconversation to send cookie information.

To the webpage, for example:

Webconversation = new webconversation ();

Webconversation. addcookie ("user", "taobaoge ");

Webresponse response = webconversation. getresponse ("http: // localhost: 8080/httpunit /");

If the webpage contains a cookie, you can use getcookievalue () to obtain the cookie information contained in the webpage. If the webpage includes the following scriptlet:

<%

Cookie = new cookie ("customerid", "12345 ");

Response. addcookie (cookie );

%>

You can use the following method to test the returned cookie information:

Assertequals ("taobaoge", webconversation. getcookievalue ("user "));

Test 6: authorization:

If your webpage has preset basic HTTP verification, you can use the setauthorization () method of webconversation to set verification information. For example:

Webconversation. setauthorization ("Justin", "123456 ");

Test 7: Set Proxy:

Sometimes, the target webpage you test may be connected through a proxy server. You can set the system attribute to set the proxy for httpunit. For example:

System. getproperties (). Put ("proxyset", "true ");

System. getproperties (). Put ("proxyhost", "proxy.ntu.edu.tw ");

System. getproperties (). Put ("proxyport", "8080 ");

In this way, httpunit will send requests and accept corresponding requests through the specified proxy server.