feat: add httpc.Do & httpc.Service.Do (#1775)

* backup

* backup

* backup

* feat: add httpc.Do & httpc.Service.Do

* fix: not using strings.Cut, it's from Go 1.18

* chore: remove redudant code

* feat: httpc.Do finished

* chore: fix reviewdog

* chore: break loop if found

* add more tests

rest/httpc/requests_test.go

@@ -1,14 +1,17 @@
 package httpc
 
 import (
+	"context"
 	"net/http"
 	"net/http/httptest"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
+	"github.com/zeromicro/go-zero/rest/httpx"
+	"github.com/zeromicro/go-zero/rest/router"
 )
 
-func TestDo(t *testing.T) {
+func TestDoRequest(t *testing.T) {
 	svr := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 	}))
 	defer svr.Close()
@@ -19,7 +22,7 @@ func TestDo(t *testing.T) {
 	assert.Equal(t, http.StatusOK, resp.StatusCode)
 }
 
-func TestDoNotFound(t *testing.T) {
+func TestDoRequest_NotFound(t *testing.T) {
 	svr := httptest.NewServer(http.NotFoundHandler())
 	defer svr.Close()
 	req, err := http.NewRequest(http.MethodPost, svr.URL, nil)
@@ -30,7 +33,7 @@ func TestDoNotFound(t *testing.T) {
 	assert.Equal(t, http.StatusNotFound, resp.StatusCode)
 }
 
-func TestDoMoved(t *testing.T) {
+func TestDoRequest_Moved(t *testing.T) {
 	svr := httptest.NewServer(http.RedirectHandler("/foo", http.StatusMovedPermanently))
 	defer svr.Close()
 	req, err := http.NewRequest(http.MethodGet, svr.URL, nil)
@@ -39,3 +42,84 @@ func TestDoMoved(t *testing.T) {
 	// too many redirects
 	assert.NotNil(t, err)
 }
+
+func TestDo(t *testing.T) {
+	type Data struct {
+		Key    string `path:"key"`
+		Value  int    `form:"value"`
+		Header string `header:"X-Header"`
+		Body   string `json:"body"`
+	}
+
+	rt := router.NewRouter()
+	err := rt.Handle(http.MethodPost, "/nodes/:key",
+		http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			var req Data
+			assert.Nil(t, httpx.Parse(r, &req))
+		}))
+	assert.Nil(t, err)
+
+	svr := httptest.NewServer(http.HandlerFunc(rt.ServeHTTP))
+	defer svr.Close()
+
+	data := Data{
+		Key:    "foo",
+		Value:  10,
+		Header: "my-header",
+		Body:   "my body",
+	}
+	resp, err := Do(context.Background(), http.MethodPost, svr.URL+"/nodes/:key", data)
+	assert.Nil(t, err)
+	assert.Equal(t, http.StatusOK, resp.StatusCode)
+}
+
+func TestDo_BadRequest(t *testing.T) {
+	_, err := Do(context.Background(), http.MethodPost, ":/nodes/:key", nil)
+	assert.NotNil(t, err)
+
+	val1 := struct {
+		Value string `json:"value,options=[a,b]"`
+	}{
+		Value: "c",
+	}
+	_, err = Do(context.Background(), http.MethodPost, "/nodes/:key", val1)
+	assert.NotNil(t, err)
+
+	val2 := struct {
+		Value string `path:"val"`
+	}{
+		Value: "",
+	}
+	_, err = Do(context.Background(), http.MethodPost, "/nodes/:key", val2)
+	assert.NotNil(t, err)
+
+	val3 := struct {
+		Value string `path:"key"`
+		Body  string `json:"body"`
+	}{
+		Value: "foo",
+	}
+	_, err = Do(context.Background(), http.MethodGet, "/nodes/:key", val3)
+	assert.NotNil(t, err)
+
+	_, err = Do(context.Background(), "\n", "rtmp://nodes", nil)
+	assert.NotNil(t, err)
+
+	val4 := struct {
+		Value string `path:"val"`
+	}{
+		Value: "",
+	}
+	_, err = Do(context.Background(), http.MethodPost, "/nodes/:val", val4)
+	assert.NotNil(t, err)
+
+	val5 := struct {
+		Value   string `path:"val"`
+		Another int    `path:"foo"`
+	}{
+		Value:   "1",
+		Another: 2,
+	}
+	_, err = Do(context.Background(), http.MethodPost, "/nodes/:val", val5)
+	assert.NotNil(t, err)
+}