fix(http): Make option optional.

When no option provided there is nothing to test. Throw a Fail when no
options are selected to prevent missuse of new function.

assert/http_assertions.go

@@ -175,6 +175,11 @@ func HTTP(t TestingT, handler http.HandlerFunc, method, url string, values url.V
 		h.Helper()
 	}
 
+	if options == nil {
+		Fail(t, fmt.Sprintf("No options selected, no assertions can be executed"))
+		return false
+	}
+
 	b := &builder{}
 	for _, option := range options {
 		err := option(b)
@@ -194,7 +199,7 @@ func HTTP(t TestingT, handler http.HandlerFunc, method, url string, values url.V
 	req.Header = b.requestHeader
 	req.URL.RawQuery = values.Encode()
 	handler(w, req)
-	if w.Code != b.code {
+	if b.code != nil && w.Code != *b.code {
 		Fail(t, fmt.Sprintf("Expected HTTP success status code for %q but received %d", url+"?"+values.Encode(), w.Code))
 		return false
 	}

assert/http_options.go

@@ -8,7 +8,7 @@ import (
 )
 
 type builder struct {
-	code           int
+	code           *int
 	body           io.ReadCloser
 	expectedBody   bytes.Buffer
 	requestHeader  http.Header
@@ -24,7 +24,7 @@ func WithCode(code int) HttpOption {
 			return errors.New("Given HTTP code is outside range of possible values assignement")
 		}
 
-		b.code = code
+		b.code = &code
 		return nil
 	}
 }