功能：完善云管助手与GPU故障恢复核对

platform/pkg/proxmox/client_test.go

@@ -2,6 +2,7 @@ package proxmox
 
 import (
 	"context"
+	"errors"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -58,6 +59,70 @@ func TestTLSAndTaskLifecycle(t *testing.T) {
 		t.Fatal("restore must never map to hard reset")
 	}
 }
+
+func TestObservationRetriesDoNotReplayPowerCommands(t *testing.T) {
+	for _, endpoint := range []string{"task", "power"} {
+		t.Run(endpoint, func(t *testing.T) {
+			reads, writes := 0, 0
+			ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+				if r.Method == "POST" {
+					writes++
+					w.WriteHeader(http.StatusServiceUnavailable)
+					return
+				}
+				reads++
+				if reads < 3 {
+					w.WriteHeader(http.StatusServiceUnavailable)
+					return
+				}
+				fmtBody := `{"data":{"status":"running"}}`
+				if endpoint == "task" {
+					fmtBody = `{"data":{"status":"stopped","exitstatus":"OK"}}`
+				}
+				w.Write([]byte(fmtBody))
+			}))
+			defer ts.Close()
+			c := &Client{BaseURL: ts.URL, HTTP: ts.Client()}
+			var err error
+			if endpoint == "task" {
+				err = c.Wait(context.Background(), "node", "UPID:one", time.Millisecond)
+			} else {
+				_, err = c.Power(context.Background(), "node", 100)
+			}
+			if err != nil || reads != 3 {
+				t.Fatal("observation did not recover", reads, err)
+			}
+			if _, err = c.Action(context.Background(), "node", 100, "start"); err == nil || writes != 1 {
+				t.Fatal("command response loss must not replay POST", writes, err)
+			}
+		})
+	}
+}
+
+func TestObservationRetriesAreBoundedAndRespectCancellation(t *testing.T) {
+	for _, status := range []int{http.StatusForbidden, http.StatusServiceUnavailable} {
+		calls := 0
+		ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+			calls++
+			w.WriteHeader(status)
+		}))
+		c := &Client{BaseURL: ts.URL, HTTP: ts.Client()}
+		_, err := c.Power(context.Background(), "node", 100)
+		want := 1
+		if status == http.StatusServiceUnavailable {
+			want = 3
+		}
+		if err == nil || calls != want {
+			t.Fatal("incorrect retry limit", calls, err)
+		}
+		ctx, cancel := context.WithCancel(context.Background())
+		cancel()
+		if _, err = c.Power(ctx, "node", 100); !errors.Is(err, context.Canceled) || calls != want {
+			t.Fatal("cancellation ignored", calls, err)
+		}
+		ts.Close()
+	}
+}
 func TestFailedPVEJobIsNotSuccess(t *testing.T) {
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Write([]byte(`{"data":{"status":"stopped","exitstatus":"ERROR: disk full"}}`))