v/vlib/builtin/array_test.v

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import os
const (
q = [1, 2, 3]
A = 8
)
fn test_ints() {
mut a := [1, 5, 2, 3]
assert a.len == 4
assert a[0] == 1
assert a[2] == 2
assert a.last() == 3
a << 4
assert a.len == 5
assert a[4] == 4
assert a.last() == 4
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mut s := a.str()
assert s == '[1, 5, 2, 3, 4]'
assert a[1] == 5
assert a.last() == 4
}
fn test_deleting() {
mut a := [1, 5, 2, 3, 4]
assert a.len == 5
assert a.str() == '[1, 5, 2, 3, 4]'
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a.delete(0)
assert a.str() == '[5, 2, 3, 4]'
assert a.len == 4
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a.delete(1)
assert a.str() == '[5, 3, 4]'
assert a.len == 3
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}
fn test_short() {
a := [1, 2, 3]
assert a.len == 3
assert a.cap == 3
assert a[0] == 1
assert a[1] == 2
assert a[2] == 3
}
fn test_large() {
mut a := [0; 0]
for i := 0; i < 10000; i++ {
a << i
}
assert a.len == 10000
assert a[234] == 234
}
struct Chunk {
val string
}
struct K {
q []Chunk
}
fn test_empty() {
mut chunks := []Chunk{}
a := Chunk{}
assert chunks.len == 0
chunks << a
assert chunks.len == 1
chunks = []Chunk{}
assert chunks.len == 0
chunks << a
assert chunks.len == 1
}
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fn test_push() {
mut a := []int
a << 1
a << 3
assert a[1] == 3
assert a.str() == '[1, 3]'
}
fn test_strings() {
a := ['a', 'b', 'c']
assert a.str() == '["a", "b", "c"]'
}
fn test_repeat() {
a := [0; 5]
assert a.len == 5
assert a[0] == 0 && a[1] == 0 && a[2] == 0 && a[3] == 0 && a[4] == 0
b := [7; 3]
assert b.len == 3
assert b[0] == 7 && b[1] == 7 && b[2] == 7
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}
fn test_right() {
a := [1, 2, 3, 4]
b := a.right(1)
assert b[0] == 2
assert b[1] == 3
}
fn test_left() {
a := [1, 2, 3]
b := a.left(2)
assert b[0] == 1
assert b[1] == 2
}
fn test_slice() {
a := [1, 2, 3, 4]
b := a.slice(2, 4)
assert b.len == 2
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assert a.slice(1, 2).len == 1
assert a.len == 4
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}
fn test_push_many() {
mut a := [1, 2, 3]
b := [4, 5, 6]
a._push_many(b.data, b.len)
assert a.len == 6
assert a[0] == 1
assert a[3] == 4
assert a[5] == 6
}