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kratos/transport/http/service_test.go

98 lines
2.0 KiB

package http
import (
"bytes"
"context"
"encoding/json"
"errors"
"fmt"
"net/http"
"testing"
"time"
"github.com/go-kratos/kratos/v2/internal/host"
"github.com/go-kratos/kratos/v2/middleware"
)
type testRequest struct {
Name string `json:"name"`
}
type testReply struct {
Result string `json:"result"`
}
type testService struct{}
func (s *testService) SayHello(ctx context.Context, req *testRequest) (*testReply, error) {
return &testReply{Result: req.Name}, nil
}
func TestService(t *testing.T) {
h := func(srv interface{}, ctx context.Context, req *http.Request, dec func(interface{}) error, m middleware.Middleware) (interface{}, error) {
var in testRequest
if err := dec(&in); err != nil {
return nil, err
}
h := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(*testService).SayHello(ctx, &in)
}
out, err := m(h)(ctx, &in)
if err != nil {
return nil, err
}
return out, nil
}
sd := &ServiceDesc{
ServiceName: "helloworld.Greeter",
Methods: []MethodDesc{
{
Path: "/helloworld",
Method: "POST",
Handler: h,
},
},
}
svc := &testService{}
srv := NewServer()
srv.RegisterService(sd, svc)
time.AfterFunc(time.Second, func() {
defer srv.Stop()
testServiceClient(t, srv)
})
if err := srv.Start(); !errors.Is(err, http.ErrServerClosed) {
t.Fatal(err)
}
}
func testServiceClient(t *testing.T, srv *Server) {
client, err := NewClient(context.Background())
if err != nil {
t.Fatal(err)
}
port, ok := host.Port(srv.lis)
if !ok {
t.Fatalf("extract port error: %v", srv.lis)
}
var (
in = testRequest{Name: "hello"}
out = testReply{}
url = fmt.Sprintf("http://127.0.0.1:%d/helloworld", port)
)
data, err := json.Marshal(in)
if err != nil {
t.Fatal(err)
}
req, err := http.NewRequest("POST", url, bytes.NewReader(data))
if err != nil {
t.Fatal(err)
}
req.Header.Set("content-type", "application/json")
if err := Do(client, req, &out); err != nil {
t.Fatal(err)
}
if out.Result != in.Name {
t.Fatalf("expected %s got %s", in.Name, out.Result)
}
}