notToBeNull

Expects that the subject of the assertion is not null and changes the subject to the non-nullable version.

expect<Int?>(1)
  .notToBeNull() // subject is now of type Int
  .isLessThan(2)

fails {
    expect<Int?>(null)
      .notToBeNull() // fails
      .isLessThan(2) // not shown in reporting as notToBeNull already fails
}

Exceptions

AssertionError - Might throw an AssertionError if the assertion made is not correct.

Return
An Expect with the non-nullable type T (was T? before).

Expects that the subject of the assertion is not null and that it holds all assertions the given assertionCreator creates.

expect<Int?>(1).notToBeNull { // subject is now of type Int, within this block but also afterwards
  isGreaterThan(0)
  isLessThan(10)
}.toBe(1)

fails {
    // because you forgot to define an assertion in the assertion group block
    // use `notToBeNull()` if this is all you want to assert
    expect<Int?>(1).notToBeNull { }
}


fails {
    // notToBeNull already fails, reporting mentions that subject was expected `to be: 2`
    expect<Int?>(null).notToBeNull {
        toBe(2)
    }
}

fails {
    // sub-assertion fails
    expect<Int?>(1).notToBeNull {
        isLessThan(0)
    }
}

Exceptions

AssertionError - Might throw an AssertionError if the assertion made is not correct.

Return
An Expect with the non-nullable type T (was T? before)