}
	// validate that segments[0] consists of valid DNS1123 labels separated by '.'
	domainLabels := strings.Split(segments[0], ".")
	for _, lbl := range domainLabels {
		// use IsDNS1123Label as we want to ensure the max length of any single label in the domain
		// is 63 characters
		if errs := validation.IsDNS1123Label(lbl); len(errs) > 0 {
			for _, err := range errs {

	testCases := []struct {
		name                string
		expressionAccessors []ExpressionAccessor
	}{
		{
			name: "valid ClaimMappingCondition",
			expressionAccessors: []ExpressionAccessor{
				&ClaimMappingExpression{
					Expression: "claims.foo",
				},
			},
		},
		{
			name: "valid ClaimValidationCondition",
			expressionAccessors: []ExpressionAccessor{
				&ClaimValidationCondition{

			if strings.HasPrefix(elem, "!!") {
				return fmt.Errorf("invalid double negative in build constraint: %s", arg)
			}
			elem = strings.TrimPrefix(elem, "!")
			for _, c := range elem {
				if !unicode.IsLetter(c) && !unicode.IsDigit(c) && c != '_' && c != '.' {
					return fmt.Errorf("invalid non-alphanumeric build constraint: %s", arg)
				}
			}
		}
	}
	return nil
}

}

// ParseLangFlag verifies that the -lang flag holds a valid value, and
// exits if not. It initializes data used by AllowsGoVersion.
func ParseLangFlag() {
	if base.Flag.Lang == "" {
		return
	}

	var err error
	langWant, err = parseLang(base.Flag.Lang)
	if err != nil {
		log.Fatalf("invalid value %q for -lang: %v", base.Flag.Lang, err)
	}

				// whose execution terminates."
				valid := false
				if t := b.enclosingTarget(name); t != nil {
					switch t.Stmt.(type) {
					case *syntax.SwitchStmt, *syntax.SelectStmt, *syntax.ForStmt:
						valid = true
					}
				}
				if !valid {
					check.errorf(s.Label, MisplacedLabel, "invalid break label %s", name)
					return
				}

			case syntax.Continue:

	// indexValidator is used to check if a given index is still
	// valid perspective. If it is deemed that the index is not
	// valid, then this interval can no longer be used to serve
	// events. Use of indexValidator is warranted only in cases
	// where the window of events in the underlying source can
	// change over time. Furthermore, an interval is invalid if
	// its startIndex no longer coincides with the startIndex of

	invalidatedAutoTokensTotal = metrics.NewCounter(
		&metrics.CounterOpts{
			Subsystem:      kubeServiceAccountSubsystem,
			Name:           "invalid_legacy_auto_token_uses_total",
			Help:           "Cumulative invalid auto-generated legacy tokens used",
			StabilityLevel: metrics.ALPHA,
		},
	)

	// ValidTokensTotal is the number of valid projected tokens used.

    }

    def "produces deprecation warning for invalid URLs"() {
        buildFile """
def originalFile = layout.projectDirectory.dir("test% dir").asFile
def fileURI = layout.projectDirectory.dir("test% dir").asFile.toURI().toString().replaceFirst("%25", "%")
def f = file(fileURI)
assert f == originalFile
"""

        expect:

        super("Declaration of model rule " + descriptor.toString() + " is invalid.", cause);
        if (cause == null) {
            throw new IllegalArgumentException("'cause' cannot be null");
        }
    }

    public InvalidModelRuleDeclarationException(ModelRuleDescriptor descriptor, String message) {
        super(String.format("%s is not a valid model rule method: %s", descriptor, message));
    }

		wantParsedVersion string
		wantErr           bool
	}{
		{
			name:              "version is valid",
			ciVersionLabel:    "v1.28.1",
			wantCIVersion:     "v1.28.1",
			wantParsedVersion: "1.28.1",
			wantErr:           false,
		},
		{
			name:              "version is invalid",
			ciVersionLabel:    "invalid-version",
			wantCIVersion:     "",
			wantParsedVersion: "",
			wantErr:           true,
		},