use nu_test_support::nu; #[test] fn try_succeed() { let output = nu!("try { 345 } catch { echo 'hello' }"); assert!(output.out.contains("345")); } #[test] fn try_catch() { let output = nu!("try { foobarbaz } catch { echo 'hello' }"); assert!(output.out.contains("hello")); } #[test] fn catch_can_access_error() { let output = nu!("try { foobarbaz } catch { |err| $err | get raw }"); assert!(output.err.contains("External command failed")); } #[test] fn catch_can_access_error_as_dollar_in() { let output = nu!("try { foobarbaz } catch { $in | get raw }"); assert!(output.err.contains("External command failed")); } #[test] fn external_failed_should_be_caught() { let output = nu!("try { nu --testbin fail; echo 'success' } catch { echo 'fail' }"); assert!(output.out.contains("fail")); } #[test] fn loop_try_break_should_be_successful() { let output = nu!("loop { try { print 'successful'; break } catch { print 'failed'; continue } }"); assert_eq!(output.out, "successful"); } #[test] fn loop_catch_break_should_show_failed() { let output = nu!("loop { try { invalid 1; continue; } catch { print 'failed'; break } } "); assert_eq!(output.out, "failed"); } #[test] fn loop_try_ignores_continue() { let output = nu!("mut total = 0; for i in 0..10 { try { if ($i mod 2) == 0 { continue;} $total += 1 } catch { echo 'failed'; break } } echo $total "); assert_eq!(output.out, "5"); } #[test] fn loop_try_break_on_command_should_show_successful() { let output = nu!("loop { try { ls; break } catch { echo 'failed';continue }}"); assert!(!output.out.contains("failed")); } #[test] fn catch_block_can_use_error_object() { let output = nu!("try {1 / 0} catch {|err| print ($err | get msg)}"); assert_eq!(output.out, "Division by zero.") } // This test is disabled on Windows because they cause a stack overflow in CI (but not locally!). // For reasons we don't understand, the Windows CI runners are prone to stack overflow. // TODO: investigate so we can enable on Windows #[cfg(not(target_os = "windows"))] #[test] fn can_catch_infinite_recursion() { let actual = nu!(r#" def bang [] { try { bang } catch { "Caught infinite recursion" } }; bang "#); assert_eq!(actual.out, "Caught infinite recursion"); }