$ cargo test
   Compiling guessing_game v0.1.0 (file:///projects/guessing_game)
    Finished test [unoptimized + debuginfo] target(s) in 0.66s
     Running unittests src/lib.rs (target/debug/deps/guessing_game-57d70c3acb738f4d)

running 1 test
test tests::greater_than_100 - should panic ... FAILED

failures:

---- tests::greater_than_100 stdout ----
thread 'tests::greater_than_100' panicked at 'Wartość Guess musi być większa lub równa 1, otrzymano 200.', src/lib.rs:13:13
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
note: panic did not contain expected string
      panic message: `"Wartość Guess musi być większa lub równa 1, otrzymano 200."`,
 expected substring: `"mniejsza lub równa 100"`

failures:
    tests::greater_than_100

test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s

error: test failed, to rerun pass `--lib`
