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restype_test.go
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package restype
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"net/http"
"net/http/httptest"
"testing"
"github.com/go-resty/resty/v2"
"github.com/stretchr/testify/assert"
)
var _ Request[AccountResponse] = new(AccountRequest)
type AccountRequest struct {
// Body
Name string `json:"name"`
// Headers
Token string `json:"-"`
// Path params
ID int `json:"-"`
// Query params
Status string `json:"-"`
}
// Body implements Request
func (s *AccountRequest) Body() ([]byte, error) {
return json.Marshal(s)
}
// Headers implements Request
func (s *AccountRequest) Headers() map[string]string {
var headers = make(map[string]string)
headers["x-account-token"] = s.Token
return headers
}
// Method implements Request
func (*AccountRequest) Method() string {
return "POST"
}
// Path implements Request
func (*AccountRequest) Path() string {
return "/api/account/{account_id}"
}
// PathParams implements Request
func (s *AccountRequest) PathParams() map[string]string {
var params = make(map[string]string)
params["account_id"] = fmt.Sprint(s.ID)
return params
}
// QueryParams implements Request
func (s *AccountRequest) QueryParams() map[string]string {
var params = make(map[string]string)
params["account_status"] = s.Status
return params
}
// ResponseFromBytes implements Request
func (*AccountRequest) ResponseFromBytes(bs []byte) (AccountResponse, error) {
var res AccountResponse
err := json.Unmarshal(bs, &res)
if err != nil {
return AccountResponse{}, err
}
return res, nil
}
type AccountResponse struct {
Users []User
}
type User struct {
ID int
Name string
}
var _ error = new(CustomError)
type CustomError struct {
ID int
Message string
Args map[string]any
}
// Error implements error
func (s CustomError) Error() string {
return fmt.Sprintf("CustomError(ID=%d): %s %v", s.ID, s.Message, s.Args)
}
func TestDoRaw_OK(t *testing.T) {
var req = AccountRequest{
Name: "account1234",
Token: "token1234",
ID: 42,
Status: "active",
}
var accountResponse = AccountResponse{Users: []User{{1, "A"}, {2, "B"}}}
var logidOpt = func(r *resty.Request) *resty.Request {
r.SetHeader("logid", "logid-asdf")
return r
}
var handled = false
var srv = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
handled = true
assert.Equal(t, http.MethodPost, r.Method)
assert.Equal(t, "/api/account/42", r.URL.Path)
assert.Equal(t, "active", r.URL.Query().Get("account_status"))
assert.Equal(t, "token1234", r.Header.Get("x-account-token"))
assert.Equal(t, "logid-asdf", r.Header.Get("logid"))
var reqBody AccountRequest
err := json.NewDecoder(r.Body).Decode(&reqBody)
assert.NoError(t, err)
assert.Equal(t, AccountRequest{Name: "account1234"}, reqBody)
err = json.NewEncoder(w).Encode(&accountResponse)
assert.NoError(t, err)
}))
defer srv.Close()
var client = resty.New().
SetBaseURL(srv.URL)
raw, res, err := DoRaw[*AccountRequest, AccountResponse, CustomError](client, &req, logidOpt)
assert.NoError(t, err)
assert.Equal(t, http.StatusOK, raw.StatusCode())
assert.True(t, handled)
var accountResponseBytes []byte
accountResponseBytes, _ = json.Marshal(&accountResponse) // SAFETY: marshalling a struct
assert.Equal(t, accountResponse, res)
assert.Equal(t, accountResponseBytes, bytes.TrimSpace(raw.Body()))
}
func TestDo_OK(t *testing.T) {
var req = AccountRequest{
Name: "account1234",
Token: "token1234",
ID: 42,
Status: "active",
}
var accountResponse = AccountResponse{Users: []User{{1, "A"}, {2, "B"}}}
var logidOpt = func(r *resty.Request) *resty.Request {
r.SetHeader("logid", "logid-asdf")
return r
}
var handled = false
var srv = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
handled = true
assert.Equal(t, http.MethodPost, r.Method)
assert.Equal(t, "/api/account/42", r.URL.Path)
assert.Equal(t, "active", r.URL.Query().Get("account_status"))
assert.Equal(t, "token1234", r.Header.Get("x-account-token"))
assert.Equal(t, "logid-asdf", r.Header.Get("logid"))
var reqBody AccountRequest
err := json.NewDecoder(r.Body).Decode(&reqBody)
assert.NoError(t, err)
assert.Equal(t, AccountRequest{Name: "account1234"}, reqBody)
err = json.NewEncoder(w).Encode(&accountResponse)
assert.NoError(t, err)
}))
defer srv.Close()
var client = resty.New().
SetBaseURL(srv.URL)
res, err := Do[*AccountRequest, AccountResponse, CustomError](client, &req, logidOpt)
assert.NoError(t, err)
assert.True(t, handled)
assert.Equal(t, accountResponse, res)
}
func TestDo_JSONErrorResponse(t *testing.T) {
var req = AccountRequest{
Name: "account1234",
Token: "token1234",
ID: 42,
Status: "active",
}
var customError = CustomError{
ID: 22,
Message: "error with request",
Args: map[string]any{
"arg1": float64(33),
"arg2": "asdf",
},
}
var handled = false
var srv = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
handled = true
w.Header().Add("content-type", "application/json")
w.WriteHeader(http.StatusBadRequest)
err := json.NewEncoder(w).Encode(&customError)
assert.NoError(t, err)
}))
defer srv.Close()
var client = resty.New().
SetBaseURL(srv.URL)
_, err := Do[*AccountRequest, AccountResponse, CustomError](client, &req)
assert.True(t, handled)
assert.Equal(t, customError, err)
}
func TestDo_JSONErrorResponse_AsBytes(t *testing.T) {
var req = AccountRequest{
Name: "account1234",
Token: "token1234",
ID: 42,
Status: "active",
}
var customError = CustomError{
ID: 22,
Message: "error with request",
Args: map[string]any{
"arg1": float64(33),
"arg2": "asdf",
},
}
var handled = false
var srv = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
handled = true
w.WriteHeader(http.StatusBadRequest)
err := json.NewEncoder(w).Encode(&customError)
assert.NoError(t, err)
}))
defer srv.Close()
var client = resty.New().
SetBaseURL(srv.URL)
_, resErr := Do[*AccountRequest, AccountResponse, error](client, &req)
assert.True(t, handled)
want, err := json.Marshal(&customError)
assert.NoError(t, err)
assert.Equal(t, string(want)+"\n", resErr.Error())
}
func TestDo_UnstructuredErrorResponse_WithContentTypeJSON(t *testing.T) {
var req = AccountRequest{
Name: "account1234",
Token: "token1234",
ID: 42,
Status: "active",
}
var handled = false
var srv = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
handled = true
w.Header().Add("content-type", "application/json")
w.WriteHeader(http.StatusBadRequest)
w.Write([]byte("error: invalid request"))
}))
defer srv.Close()
var client = resty.New().
SetBaseURL(srv.URL)
_, err := Do[*AccountRequest, AccountResponse, error](client, &req)
assert.True(t, handled)
assert.Equal(t, "error: invalid request", err.Error())
}
var _ Request[any] = new(RequestWithNilResponse)
type RequestWithNilResponse struct {
Default
}
// Method implements Request
func (*RequestWithNilResponse) Method() string {
return "POST"
}
// Path implements Request
func (*RequestWithNilResponse) Path() string {
return "/"
}
func TestDo_NilResponseType(t *testing.T) {
var req = RequestWithNilResponse{}
var handled = false
var srv = httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
handled = true
w.WriteHeader(http.StatusOK)
}))
defer srv.Close()
var client = resty.New().
SetBaseURL(srv.URL)
res, err := Do[*RequestWithNilResponse, any, error](client, &req)
assert.NoError(t, err)
assert.True(t, handled)
assert.Nil(t, res)
}
func TestDo_NoRoute(t *testing.T) {
var req = RequestWithNilResponse{}
var mux = http.NewServeMux()
var srv = http.Server{Addr: ":8080", Handler: mux}
go srv.ListenAndServe()
defer srv.Shutdown(context.Background())
var client = resty.New().
SetBaseURL("http://localhost:8080")
res, err := Do[*RequestWithNilResponse, any, error](client, &req)
assert.Equal(t, errors.New("404 page not found\n"), err)
assert.Nil(t, res)
}