1const assert = @import("std").debug.assert;
 2
 3fn fibonacci(index: i32) i32 {
 4    if (index < 2) return index;
 5    return fibonacci(index - 1) + fibonacci(index - 2);
 6}
 7
 8test "fibonacci" {
 9    try comptime assert(fibonacci(7) == 99999);
10}
11
12// test_error=reached unreachable