Wiremock tests always getting a 404 on a simple request - testing

Question

I'm trying to get wiremock to return a 200 status with a simple request in my unit tests however, this unit test is always returning a 404 error.
How can this be solved?
import static com.github.tomakehurst.wiremock.client.WireMock.*;
import static org.junit.Assert.assertTrue;
import com.github.tomakehurst.wiremock.junit.WireMockRule;
import org.junit.Rule;
import org.junit.Test;
import java.net.HttpURLConnection;
import java.net.URL;
public class WiremockTest {
#Rule
public WireMockRule wireMockRule = new WireMockRule(8089); // No-args constructor defaults to port 8080
#Test
public void exampleTest() throws Exception {
stubFor(get(urlPathMatching("/my/resource[0-9]+"))
.willReturn(aResponse()
.withStatus(200)
.withHeader("Content-Type", "text/xml")
.withBody("<response>Some content</response>")));
int result = sendGet("http://localhost/my/resource/121");
assertTrue(200 == result);
//verify(getRequestedFor(urlMatching("/my/resource/[a-z0-9]+")));
}
private int sendGet(String url) throws Exception {
URL obj = new URL(url);
HttpURLConnection con = (HttpURLConnection) obj.openConnection();
// optional default is GET
con.setRequestMethod("GET");
int responseCode = con.getResponseCode();
return responseCode;
}
}
}

Answer 1

Using your provided code, I first had to handle the java.net.ConnectionException that was being thrown. Your test's url needs the port on localhost.
sendGet("http://localhost:8089/my/resource/121")
After that, I think that the reason you're getting a 404 is that your regex does not match your test url.
urlPathMatching("/my/resource[0-9]+")
should be
urlPathMatching("/my/resource/[0-9]+")
note the additional path separator between 'resource' and '[0-9]+'
Online tools for regex testing like regex101 can be used to test out pattern matching behaviors. (Remember to escape your forward slashes)
Pattern :\/my\/resource\/[0-9]+
Test String: http://localhost:8089/my/resource/121
Hope that helps!