1const std = @import("std");
 2const expect = std.testing.expect;
 3const mem = std.mem;
 4
 5test "cast *[1][*:0]const u8 to []const ?[*:0]const u8" {
 6    const window_name = [1][*:0]const u8{"window name"};
 7    const x: []const ?[*:0]const u8 = &window_name;
 8    try expect(mem.eql(u8, mem.span(x[0].?), "window name"));
 9}
10
11// test