chore: harden production readiness gates and runbooks

backend/providers/http/engine_test.go

@@ -0,0 +1,52 @@
+package http
+
+import (
+	"context"
+	"errors"
+	"testing"
+
+	"quyun/v2/providers/storage"
+)
+
+func TestNewReadyCheck(t *testing.T) {
+	t.Run("returns error when database ping fails", func(t *testing.T) {
+		checker := newReadyCheck(func(context.Context) error {
+			return errors.New("db down")
+		}, nil)
+
+		err := checker(context.Background())
+		if err == nil {
+			t.Fatalf("expected readiness error when db ping fails")
+		}
+	})
+
+	t.Run("returns error when s3 storage config is incomplete and check on boot enabled", func(t *testing.T) {
+		checker := newReadyCheck(nil, &storage.Storage{Config: &storage.Config{
+			Type:        "s3",
+			CheckOnBoot: true,
+			Endpoint:    "",
+			Bucket:      "",
+		}})
+
+		err := checker(context.Background())
+		if err == nil {
+			t.Fatalf("expected readiness error when storage config is incomplete")
+		}
+	})
+
+	t.Run("returns nil when dependencies are ready", func(t *testing.T) {
+		checker := newReadyCheck(func(context.Context) error {
+			return nil
+		}, &storage.Storage{Config: &storage.Config{
+			Type:        "s3",
+			CheckOnBoot: true,
+			Endpoint:    "http://127.0.0.1:9000",
+			Bucket:      "bucket",
+		}})
+
+		err := checker(context.Background())
+		if err != nil {
+			t.Fatalf("expected nil error, got %v", err)
+		}
+	})
+}