Random Strings from Templates¶

Faker's StringProvider allows for replacing certain user-defined parts of strings with randomly generated chars (letters and digits), as well as generating strings from regex expressions. The following functions are available withing the Faker().string:

kotlin

faker.string.numerify("123###").all { it.isDigit() } shouldBe true
faker.string.letterify("foo???").all { it.isLetter() } shouldBe true
faker.string.letterify("???BAR", true).all { it.isUpperCase() } shouldBe true
faker.string.letterify("???bar", false).all { it.isLowerCase() } shouldBe true
faker.string.bothify("foo???bar###")
faker.string.regexify("""\d{42}""").all { it.isDigit() } shouldBe true
faker.string.regexify("""\d{42}""").length shouldBe 42