// it fatally fails the test if the env fails to set up.
func mustCreateEnvWithOptional(t testing.TB, envOptions ...cel.EnvOption) *cel.Env {
	return mustCreateEnv(t, append(envOptions, cel.OptionalTypes())...)

		EnvOptions: []cel.EnvOption{
			library.Authz(),
		},
	},
	{
		IntroducedVersion: version.MajorMinor(1, 28),
		EnvOptions: []cel.EnvOption{
			cel.CrossTypeNumericComparisons(true),
			cel.OptionalTypes(),
			library.Quantity(),
		},
	},
	// add the new validator in 1.29
	{
		IntroducedVersion: version.MajorMinor(1, 29),
		EnvOptions: []cel.EnvOption{
			cel.ASTValidators(

	"k8s.io/apiserver/pkg/cel/library"
)

func testQuantity(t *testing.T, expr string, expectResult ref.Val, expectRuntimeErrPattern string, expectCompileErrs []string) {
	env, err := cel.NewEnv(
		cel.OptionalTypes(),
		ext.Strings(),
		library.URLs(),
		library.Regex(),
		library.Lists(),
		library.Quantity(),
		library.Format(),
	)
	if err != nil {
		t.Fatalf("%v", err)
	}

	// unwrap it after checking using `oldSelf.value()`. Check the CEL
	// documentation for Optional types for more information:
	// https://pkg.go.dev/github.com/google/cel-go/cel#OptionalTypes
	//
	// May not be set unless `oldSelf` is used in `rule`.
	//
	// +featureGate=CRDValidationRatcheting
	// +optional
	OptionalOldSelf *bool
}

// JSON represents any valid JSON value.

	// unwrap it after checking using `oldSelf.value()`. Check the CEL
	// documentation for Optional types for more information:
	// https://pkg.go.dev/github.com/google/cel-go/cel#OptionalTypes
	//
	// May not be set unless `oldSelf` is used in `rule`.
	//
	// +featureGate=CRDValidationRatcheting
	// +optional

	// unwrap it after checking using `oldSelf.value()`. Check the CEL
	// documentation for Optional types for more information:
	// https://pkg.go.dev/github.com/google/cel-go/cel#OptionalTypes
	//
	// May not be set unless `oldSelf` is used in `rule`.
	//
	// +featureGate=CRDValidationRatcheting
	// +optional

	env, err := cel.NewEnv(
		ext.Strings(ext.StringsVersion(2)),
		URLs(),
		Regex(),
		Lists(),
		Authz(),
		Quantity(),
		ext.Sets(),
		IP(),
		CIDR(),
		Format(),
		cel.OptionalTypes(),
		// cel-go v0.17.7 introduced CostEstimatorOptions.
		// Previous the presence has a cost of 0 but cel fixed it to 1. We still set to 0 here to avoid breaking changes.

  // unwrap it after checking using `oldSelf.value()`. Check the CEL
  // documentation for Optional types for more information:
  // https://pkg.go.dev/github.com/google/cel-go/cel#OptionalTypes
  //
  // May not be set unless `oldSelf` is used in `rule`.
  //
  // +featureGate=CRDValidationRatcheting
  // +optional
  optional bool optionalOldSelf = 6;
}

  // unwrap it after checking using `oldSelf.value()`. Check the CEL
  // documentation for Optional types for more information:
  // https://pkg.go.dev/github.com/google/cel-go/cel#OptionalTypes
  //
  // May not be set unless `oldSelf` is used in `rule`.
  //
  // +featureGate=CRDValidationRatcheting
  // +optional
  optional bool optionalOldSelf = 6;
}

							Type:        []string{"boolean"},
							Format:      "",
						},
					},
				},
				Required: []string{"rule"},
			},
		},