Extensions: structuralschema.Extensions{XPreserveUnknownFields: true},
						},
						"pruning": {
							Generic: structuralschema.Generic{Type: "object"},
						},
					},
				},
				"preserving": {
					Generic:    structuralschema.Generic{Type: "object"},
					Extensions: structuralschema.Extensions{XPreserveUnknownFields: true},
					Properties: map[string]structuralschema.Structural{

func validateExtensions(x *Extensions, fldPath *field.Path) field.ErrorList {
	allErrs := field.ErrorList{}

	if x.XIntOrString && x.XPreserveUnknownFields {
		allErrs = append(allErrs, field.Invalid(fldPath.Child("x-kubernetes-preserve-unknown-fields"), x.XPreserveUnknownFields, "must be false if x-kubernetes-int-or-string is true"))
	}
	if x.XIntOrString && x.XEmbeddedResource {

//
// Schemas with XPreserveUnknownFields not exposed unless they are objects. Array and "maps" schemas
// are not exposed if their items or additionalProperties schemas are not exposed. Object Properties are not exposed
// if their schema is not exposed.
//
// The CEL declaration for objects with XPreserveUnknownFields does not expose unknown fields.

	b.Nullable = &value
	return b
}

// WithXPreserveUnknownFields sets the XPreserveUnknownFields field in the declarative configuration to the given value
// and returns the receiver, so that objects can be built by chaining "With" function invocations.
// If called multiple times, the XPreserveUnknownFields field is set to the value of the last call.

						},
					},
				},
				"preserving": {
					Generic: structuralschema.Generic{Type: "object"},
					Extensions: structuralschema.Extensions{
						XEmbeddedResource:      true,
						XPreserveUnknownFields: true,
					},
				},
				"nested": {
					Generic: structuralschema.Generic{Type: "object"},
					Extensions: structuralschema.Extensions{
						XEmbeddedResource: true,
					},

	b.Nullable = &value
	return b
}

// WithXPreserveUnknownFields sets the XPreserveUnknownFields field in the declarative configuration to the given value
// and returns the receiver, so that objects can be built by chaining "With" function invocations.
// If called multiple times, the XPreserveUnknownFields field is set to the value of the last call.

	}

	if postProcess != nil {
		if err := postProcess(out); err != nil {
			return err
		}
	}

	if in.XPreserveUnknownFields != nil {
		out.VendorExtensible.AddExtension("x-kubernetes-preserve-unknown-fields", *in.XPreserveUnknownFields)
	}
	if in.XEmbeddedResource {
		out.VendorExtensible.AddExtension("x-kubernetes-embedded-resource", true)
	}
	if len(in.XListMapKeys) != 0 {

			},
			expected: new(spec.Schema).
				WithExample(testStr),
			expectDiff: true,
		},
		{
			name: "preserve-unknown-fields in arrays",
			in: &apiextensions.JSONSchemaProps{
				XPreserveUnknownFields: pointer.BoolPtr(true),
				Type:                   "array",
				Items: &apiextensions.JSONSchemaPropsOrArray{Schema: &apiextensions.JSONSchemaProps{
					Type: "string",
				}},
			},

				}
				validation = &apiextensionsv1.CustomResourceValidation{
					OpenAPIV3Schema: v1Schema,
				}
			}
			if tt.preserveUnknownFields != nil && *tt.preserveUnknownFields {
				validation.OpenAPIV3Schema.XPreserveUnknownFields = utilpointer.BoolPtr(true)
			}

			// TODO: mostly copied from the test above. reuse code to cleanup
			got, err := BuildOpenAPIV2(&apiextensionsv1.CustomResourceDefinition{

					Validation: &apiextensions.CustomResourceValidation{
						OpenAPIV3Schema: &apiextensions.JSONSchemaProps{Type: "object", XPreserveUnknownFields: pointer.BoolPtr(true)},
					},
				},
				Status: apiextensions.CustomResourceDefinitionStatus{
					StoredVersions: []string{"v1"},
				},
			}
			var oldCRD *apiextensions.CustomResourceDefinition