test(instances): verify create retry identity and idempotency

create_retry_test.go

@@ -0,0 +1,40 @@
+package awsserversdk
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestRetryCreatePreservesIdentityAndKeyOnTransientFailure(t *testing.T) {
+	requests := 0
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		requests++
+		if r.Method != "POST" || r.URL.Path != "/api/sdk/v1/regions/us-east-1/instances/local-1/retry" || r.Header.Get("Idempotency-Key") != "create-retry:1:2" {
+			t.Errorf("unexpected retry request: %s %s", r.Method, r.URL.Path)
+		}
+		var body map[string]any
+		if err := json.NewDecoder(r.Body).Decode(&body); err != nil || len(body) != 0 {
+			t.Errorf("retry payload must not select another account: %v %v", body, err)
+		}
+		w.Header().Set("Content-Type", "application/json")
+		if requests == 1 {
+			w.WriteHeader(503)
+			w.Write([]byte(`{"code":503,"message":"temporarily unavailable"}`))
+			return
+		}
+		w.WriteHeader(202)
+		w.Write([]byte(`{"code":202,"data":{"id":"local-1","task_id":"retry-task","placement_id":"original"}}`))
+	}))
+	defer server.Close()
+	client, err := NewClient(server.URL, "awsapp_test_secret", WithMaxRetries(1))
+	if err != nil {
+		t.Fatal(err)
+	}
+	operation, err := client.Instances.RetryCreate(context.Background(), "us-east-1", "local-1", WithIdempotencyKey("create-retry:1:2"))
+	if err != nil || operation.ID != "local-1" || operation.TaskID != "retry-task" || operation.PlacementID != "original" || requests != 2 {
+		t.Fatalf("result=%+v requests=%d err=%v", operation, requests, err)
+	}
+}