package httpclient

import (
	"context"
	"net/http"
	"net/http/httptest"
	"testing"
	"time"
)

func TestDoWithRetry_retriesOn500(t *testing.T) {
	var calls int
	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		calls++
		if calls < 3 {
			http.Error(w, "fail", http.StatusBadGateway)
			return
		}
		w.WriteHeader(http.StatusOK)
		_, _ = w.Write([]byte("ok"))
	}))
	defer srv.Close()

	req, err := http.NewRequest(http.MethodGet, srv.URL, nil)
	if err != nil {
		t.Fatal(err)
	}
	resp, err := DoWithRetry(context.Background(), New(5*time.Second), req, 3)
	if err != nil {
		t.Fatal(err)
	}
	defer func() { _ = resp.Body.Close() }()
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("status %d", resp.StatusCode)
	}
	if calls != 3 {
		t.Fatalf("want 3 calls, got %d", calls)
	}
}