zig/test/behavior/array.zig

const std = @import("std");
const testing = std.testing;
const mem = std.mem;
const expect = testing.expect;
const expectEqual = testing.expectEqual;

test "arrays" {
    var array: [5]u32 = undefined;

    var i: u32 = 0;
    while (i < 5) {
        array[i] = i + 1;
        i = array[i];
    }

    i = 0;
    var accumulator = @as(u32, 0);
    while (i < 5) {
        accumulator += array[i];

        i += 1;
    }

    try expect(accumulator == 15);
    try expect(getArrayLen(&array) == 5);
}
fn getArrayLen(a: []const u32) usize {
    return a.len;
}