Function byFormat

expr/example.go:196–226

byFormat returns a random example based on the format the user asks.

(a *AttributeExpr, r *ExampleGenerator)

// byFormat returns a random example based on the format the user asks.
func byFormat(a *AttributeExpr, r *ExampleGenerator) any {
	if !hasFormatValidation(a) {
		return nil
	}
	format := a.Validation.Format
	if res, ok := map[ValidationFormat]any{
		FormatEmail:    r.Email(),
		FormatHostname: r.Hostname(),
		FormatDate:     time.Unix(int64(r.Int())%1454957045, 0).UTC().Format(time.DateOnly), // to obtain a "fixed" rand
		FormatDateTime: time.Unix(int64(r.Int())%1454957045, 0).UTC().Format(time.RFC3339),  // to obtain a "fixed" rand
		FormatIPv4:     r.IPv4Address().String(),
		FormatIPv6:     r.IPv6Address().String(),
		FormatIP:       r.IPv4Address().String(),
		FormatURI:      r.URL(),
		FormatMAC: func() string {
			res, err := syntax.Parse(`([0-9A-F]{2}-){5}[0-9A-F]{2}`, 0)
			if err != nil {
				return "12-34-56-78-9A-BC"
			}
			return patgen(res, r)
		}(),
		FormatCIDR:    "192.168.100.14/24",
		FormatRegexp:  r.Characters(3) + ".*",
		FormatRFC1123: time.Unix(int64(r.Int())%1454957045, 0).UTC().Format(time.RFC1123), // to obtain a "fixed" rand
		FormatUUID:    r.UUID(),
		FormatJSON:    `{"name":"example","email":"mail@example.com"}`,
	}[format]; ok {
		return res
	}
	panic("Validation: unknown format '" + format + "'") // bug
}

// byPattern generates a random value that satisfies the pattern.
//