v/vlib/arrays/arrays_test.v

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module arrays
fn test_min() {
a := [8, 2, 6, 4]
assert min<int>(a) == 2
assert min<int>(a[2..]) == 4
b := [f32(5.1), 3.1, 1.1, 9.1]
assert min<f32>(b) == f32(1.1)
assert min<f32>(b[..2]) == f32(3.1)
c := [byte(4), 9, 3, 1]
assert min<byte>(c) == byte(1)
assert min<byte>(c[..3]) == byte(3)
}
fn test_max() {
a := [8, 2, 6, 4]
assert max<int>(a) == 8
assert max<int>(a[1..]) == 6
b := [f32(5.1), 3.1, 1.1, 9.1]
assert max<f32>(b) == f32(9.1)
assert max<f32>(b[..3]) == f32(5.1)
c := [byte(4), 9, 3, 1]
assert max<byte>(c) == byte(9)
assert max<byte>(c[2..]) == byte(3)
}
fn test_idx_min() {
a := [8, 2, 6, 4]
assert idx_min<int>(a) == 1
b := [f32(5.1), 3.1, 1.1, 9.1]
assert idx_min<f32>(b) == 2
c := [byte(4), 9, 3, 1]
assert idx_min<byte>(c) == 3
}
fn test_idx_max() {
a := [8, 2, 6, 4]
assert idx_max<int>(a) == 0
b := [f32(5.1), 3.1, 1.1, 9.1]
assert idx_max<f32>(b) == 3
c := [byte(4), 9, 3, 1]
assert idx_max<byte>(c) == 1
}
fn test_merge() {
a := [1, 3, 5, 5, 7]
b := [2, 4, 4, 5, 6, 8]
c := []int{}
d := []int{}
assert merge<int>(a, b) == [1, 2, 3, 4, 4, 5, 5, 5, 6, 7, 8]
assert merge<int>(c, d) == []
assert merge<int>(a, c) == a
assert merge<int>(d, b) == b
}
fn test_fixed_array_assignment() {
mut a := [2]int{}
a[0] = 111
a[1] = 222
b := a
assert b[0] == a[0]
assert b[1] == a[1]
mut c := [2]int{}
c = a
assert c[0] == a[0]
assert c[1] == a[1]
d := [3]int{init: 333}
for val in d {
assert val == 333
}
e := [3]string{init: 'vlang'}
for val in e {
assert val == 'vlang'
}
}
fn test_group() {
x := [4, 5, 6]
y := [2, 1, 3]
z := group<int>(x, y)
assert z == [[4, 2], [5, 1], [6, 3]]
x2 := [8, 9]
z2 := group<int>(x2, y)
assert z2 == [[8, 2], [9, 1]]
assert group<int>(x, []int{}) == [][]int{}
}