generateInvalidValue

fun generateInvalidValue(pattern: String, minLength: Int?, maxLength: Int?): String?

Generates a string that does NOT match the given pattern.

The generator uses PatternGenerationOptions.spaceChars for \s matching and PatternGenerationOptions.anyPrintableChars for . matching in the non-matching generator.

a string not matching the pattern, or null if generation fails

pattern

ECMA-262 regular expression pattern

minLength

minimum length constraint from schema (nullable, used for hint)

maxLength

maximum length constraint from schema (nullable, used for hint)