refactor(testabilty): Use HTTPClient from SOAPClient for fetching wsd…

…l definition

soap.go

@@ -82,7 +82,7 @@ func (c *Client) waitAndRefreshDefinitions(d time.Duration) {
 }
 
 func (c *Client) initWsdl() {
-	c.Definitions, c.definitionsErr = getWsdlDefinitions(c.wsdl)
+	c.Definitions, c.definitionsErr = getWsdlDefinitions(c.wsdl, c.HttpClient)
 	if c.definitionsErr == nil {
 		c.URL = strings.TrimSuffix(c.Definitions.TargetNamespace, "/")
 	}

wsdl.go

@@ -2,11 +2,12 @@ package gosoap
 
 import (
 	"encoding/xml"
-	"golang.org/x/net/html/charset"
 	"io"
 	"net/http"
 	"net/url"
 	"os"
+
+	"golang.org/x/net/html/charset"
 )
 
 type wsdlDefinitions struct {
@@ -155,7 +156,7 @@ type xsdMaxInclusive struct {
 	Value string `xml:"value,attr"`
 }
 
-func getWsdlBody(u string) (reader io.ReadCloser, err error) {
+func getWsdlBody(u string, c *http.Client) (reader io.ReadCloser, err error) {
 	parse, err := url.Parse(u)
 	if err != nil {
 		return nil, err
@@ -167,16 +168,16 @@ func getWsdlBody(u string) (reader io.ReadCloser, err error) {
 		}
 		return outFile, nil
 	}
-	r, err := http.Get(u)
+	r, err := c.Get(u)
 	if err != nil {
 		return nil, err
 	}
 	return r.Body, nil
 }
 
 // getWsdlDefinitions sent request to the wsdl url and set definitions on struct
-func getWsdlDefinitions(u string) (wsdl *wsdlDefinitions, err error) {
-	reader, err := getWsdlBody(u)
+func getWsdlDefinitions(u string, c *http.Client) (wsdl *wsdlDefinitions, err error) {
+	reader, err := getWsdlBody(u, c)
 	if err != nil {
 		return nil, err
 	}