How to pass request for a delete method in junit - junit

Question

Hi I have a json request which I have to pass in my junit testcase but the request is delete as delete do not support setEntity method. How can I pass the request in my testcase.
Json request which I have to pass
{
"userId":"AJudd",
"siteId":"131",
"alternateSiteId":"186"
}
mytest case for this
#Test
public void testdeleteAltSite() throws ClientProtocolException, IOException {
String resultCode = "001";
String resultText = "Success";
String url = "http://localhost:8080/adminrest1/alternatesite";
HttpClient client = HttpClientBuilder.create().build();
HttpDelete delete = new HttpDelete(url);
// add header
delete.addHeader("Transaction-Id", "11");
delete.addHeader("content-type", "application/json");
LOG.info(url);
HttpResponse response = client.execute(delete);
byte[] buf = new byte[512];
InputStream is = response.getEntity().getContent();
int count = 0;
StringBuilder builder = new StringBuilder(1024);
while ((count = is.read(buf, 0, 512)) > 0) {
builder.append(new String(buf, 0, count));
}
String output = builder.toString();
System.out.println(output);
}`
How to pass the json value so that the passed value data can be deleted?

Answer 1

IMHO this is a problem with your design.
If your intent is to delete an alternate site and its id is unique then passing the alternateSiteId as part of the URI should sufficient:
Method: DELETE
URL: http://localhost:8080/adminrest1/alternatesite/{alternateSiteId}
If alternateSiteId is not unique then you are updating a relationship. In that case you should use a PUT which allows you to include a body in your request. Please note you should pass the id of the resource you are updating as part of your URI, for example:
Method: PUT
URL: http://localhost:8080/adminrest1/alternatesite/{userId}
Body:{
"siteId":"131",
"alternateSiteId":"186"
}

Answer 2

Ok, first of all: Sending a body with a DELETE is not what usually happens around the internet. Nevertheless, it is not forbidden (Is an entity body allowed for an HTTP DELETE request?). So, two ideas:
1) New class
I assume you use org.apache.http.client: Just extend HttpEntityEnclosingRequestBase:
public class HttpDeleteWithEntity extends HttpEntityEnclosingRequestBase {
public final static String METHOD_NAME = "DELETE";
public HttpDeleteWithEntity() {
super();
}
public HttpDeleteWithEntity(final URI uri) {
super();
setURI(uri);
}
public HttpDeleteWithEntity(final String uri) {
super();
setURI(URI.create(uri));
}
#Override
public String getMethod() {
return METHOD_NAME;
}
}
This is basically c&p'ed from the HttpPost class. I did not test this, tho.
Then use your HttpDeleteWithEntity class instead of HttpDelete.
2) Use custom headers
If you can modify your server code that might be a good alternative.
delete.addHeader("testwith", jsonString);
or
delete.addHeader("userId","AJudd");
delete.addHeader("siteId","131");
delete.addHeader("alternateSiteId","186);
Finally, if you are in charge of the server implementation I would recommend to implement DELETE requests without any body (see artemisian's answer).