How can I simulate server for Unit test in Grails (Spock)? - unit-testing

Question

I have written this simple service for doing subrequest via HTTPBuilder, to get instance of class representing obtained page for further use:
package cmspage
import groovyx.net.http.HTTPBuilder
import static groovyx.net.http.Method.GET
import static groovyx.net.http.ContentType.HTML
class CmsPageService {
static transactional = false
final String SUBREQUEST_HOST = "www.mydomainforsubrequest.com"
CmsPage getCmsPageInstance(Object request) {
String host = request.getServerName()
String url = request.getRequestURI()
HashMap queryMap = this.queryStringToMap(request.getQueryString())
return this.subRequest(host, url, queryMap)
}
CmsPage getCmsPageInstance(String host, String url, String queryString = null) {
HashMap queryMap = queryStringToMap(queryString)
return this.subRequest(host, url, queryMap)
}
private CmsPage subRequest(String host, String url, HashMap queryMap = null) {
CmsPage cmsPageInstance = new CmsPage()
HTTPBuilder http = new HTTPBuilder()
http.request("http://" + SUBREQUEST_HOST, GET, HTML) { req ->
uri.path = url
uri.query = queryMap
headers.'X-Original-Host' = 'www.mydomain.com'
response.success = { resp, html ->
cmsPageInstance.responseStatusCode = resp.status
if (resp.status < 400) {
cmsPageInstance.html = html
}
}
response.failure = { resp ->
cmsPageInstance.responseStatusCode = resp.status
return null
}
}
return cmsPageInstance
}
private HashMap queryStringToMap(String queryString) {
if (queryString) {
queryString = queryString.replace("?", "")
String[] splitToParameters = queryString.split("&")
HashMap queryMap = new HashMap()
splitToParameters.each {
String[] split = it.split("=")
for (int i = 0; i < split.length; i += 2) {
queryMap.put(split[i], split[i + 1])
}
}
return queryMap
} else return null
}
}
Now I need to write unit test for this service. I would like to use some simple html document to test it instead of testing some "live" site. But I do not know how?
Can anybody help me?

Answer 1

Jadler should suite you well. Check its documentation and this post on basic usage.