v2 / vlib / v / tests / builtin_arrays / array_with_it_test.v
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1fn test_array_with_it() {


2    assert [0, 1, 2, 3, 4, 5]! == [6]int{init: index}


3    a1 := [6]int{init: index}


4    assert a1 == [0, 1, 2, 3, 4, 5]!


5


6    assert [0, 1, 4, 9, 16, 25] == []int{len: 6, init: index * index}


7    a2 := []int{len: 6, init: index * index}


8    assert a2 == [0, 1, 4, 9, 16, 25]


9


10    assert [1, 2, 3, 4, 5] == []int{len: 5, init: index + 1}


11    a3 := []int{len: 5, init: index + 1}


12    assert a3 == [1, 2, 3, 4, 5]


13


14    assert [5, 4, 3, 2, 1] == []int{len: 5, init: 5 - index}


15    a4 := []int{len: 5, init: 5 - index}


16    assert a4 == [5, 4, 3, 2, 1]


17}


18


19fn test_array_init_with_option() {


20    input := [3.1, 1.1]


21    arr := []f64{len: 3, init: input[index] or { 0.0 }}


22    println(arr)


23    assert arr[0] == 3.1


24    assert arr[1] == 1.1


25    assert arr[2] == 0.0


26}


27


28fn test_array_init_with_inline_array_literal_and_option() {


29    arr := []int{len: 2, init: [4][index] or { 0 }}


30    assert arr == [4, 0]


31}


32