94 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			94 lines
		
	
	
		
			1.8 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package http
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import (
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	"context"
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	"fmt"
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	"net"
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	"net/http"
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	"sync"
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	"testing"
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	"github.com/micro/go-micro"
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	"github.com/micro/go-micro/client"
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	"github.com/micro/go-micro/registry/memory"
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	"github.com/micro/go-micro/server"
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)
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type testHandler struct{}
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func (t *testHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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	w.Write([]byte(`{"hello": "world"}`))
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}
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func TestHTTPProxy(t *testing.T) {
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	c, err := net.Listen("tcp", "localhost:0")
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	if err != nil {
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		t.Fatal(err)
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	}
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	defer c.Close()
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	addr := c.Addr().String()
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	url := fmt.Sprintf("http://%s", addr)
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	testCases := []struct {
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		// http endpoint to call e.g /foo/bar
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		httpEp string
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		// rpc endpoint called e.g Foo.Bar
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		rpcEp string
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		// should be an error
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		err bool
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	}{
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		{"/", "Foo.Bar", false},
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		{"/", "Foo.Baz", false},
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		{"/helloworld", "Hello.World", true},
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	}
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	// handler
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	http.Handle("/", new(testHandler))
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	// new proxy
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	p := NewSingleHostProxy(url)
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	ctx, cancel := context.WithCancel(context.Background())
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	defer cancel()
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	var wg sync.WaitGroup
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	wg.Add(1)
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	// new micro service
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	service := micro.NewService(
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		micro.Context(ctx),
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		micro.Name("foobar"),
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		micro.Registry(memory.NewRegistry()),
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		micro.AfterStart(func() error {
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			wg.Done()
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			return nil
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		}),
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	)
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	// set router
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	service.Server().Init(
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		server.WithRouter(p),
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	)
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	// run service
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	// server
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	go http.Serve(c, nil)
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	go service.Run()
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	// wait till service is started
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	wg.Wait()
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	for _, test := range testCases {
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		req := service.Client().NewRequest("foobar", test.rpcEp, map[string]string{"foo": "bar"}, client.WithContentType("application/json"))
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		var rsp map[string]string
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		err := service.Client().Call(ctx, req, &rsp)
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		if err != nil && test.err == false {
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			t.Fatal(err)
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		}
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		if v := rsp["hello"]; v != "world" {
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			t.Fatalf("Expected hello world got %s from %s", v, test.rpcEp)
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		}
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	}
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}
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