[REFACTOR] Handle close err + simplify to replaceall

Author: bashhack

csrf_test.go

@@ -153,7 +153,7 @@ func TestBadCookie(t *testing.T) {
 	r = createRequest("POST", "/", false)
 
 	// Replace the cookie prefix
-	badHeader := strings.Replace(cookieName+"=", rr.Header().Get("Set-Cookie"), "_badCookie", -1)
+	badHeader := strings.ReplaceAll(cookieName+"=", rr.Header().Get("Set-Cookie"), "_badCookie")
 	r.Header.Set("Cookie", badHeader)
 	r.Header.Set("X-CSRF-Token", token)
 	r.Header.Set("Referer", "http://www.gorillatoolkit.org/")

helpers_test.go

@@ -102,7 +102,10 @@ func TestMultipartFormToken(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	mp.Close()
+	err = mp.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	r = httptest.NewRequest("POST", "/", &b)
 	r.Host = "www.gorillatoolkit.org"