fun LocalDate.shouldBeWithin(period: Period, date: LocalDate): Unit
Asserts that this is within period of date
Verifies that this is within period of date. For example, 09/02/1998 is within 3 days of 10/02/1998, and this assertion should pass for this comparison.
Opposite of LocalDate.shouldNotBeWithin
val firstDate = LocalDate.of(1998, 2, 9)
val secondDate = LocalDate.of(1998, 2, 10)
firstDate.shouldBeWithin(Period.ofDays(3), secondDate) // Assertion passes
val firstDate = LocalDate.of(1998, 2, 9)
val secondDate = LocalDate.of(1998, 2, 25)
firstDate.shouldBeWithin(Period.ofDays(3), secondDate) // Assertion fails, firstDate is not within 3 days of secondDate