const std = #import("std"); const expect = std.testing.expect; const main = fn () *!void { var expected_a: s32 = 5; var a: ?&s32 = null; a = expected_a.&; try expect(a orelse unreachable == expected_a.&); var not_expected_b: s32 = 6; var b: ?&s32 = not_expected_b.&; b = null; try expect(b orelse return == not_expected_b.&); }