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# Description This changes `echo` to work more closely to what users of other shells would expect: * when redirected, `echo` works as before and sends values through the pipeline * when not redirected, `echo` will print values to the screen/terminal # User-Facing Changes A standalone `echo` now will print to the terminal, if not redirected. The `echo` command is no longer const eval-able, as it will now print to the terminal in some cases. # Tests + Formatting <!-- Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass (on Windows make sure to [enable developer mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging)) - `cargo run -- -c "use std testing; testing run-tests --path crates/nu-std"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> # After Submitting <!-- If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date. -->
34 lines
1,008 B
Rust
34 lines
1,008 B
Rust
use nu_test_support::nu;
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#[test]
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fn while_sum() {
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let actual = nu!(
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"mut total = 0; mut x = 0; while $x <= 10 { $total = $total + $x; $x = $x + 1 }; $total"
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);
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assert_eq!(actual.out, "55");
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}
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#[test]
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fn while_doesnt_auto_print_in_each_iteration() {
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let actual = nu!("mut total = 0; while $total < 2 { $total = $total + 1; 1 }");
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// Make sure we don't see any of these values in the output
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// As we do not auto-print loops anymore
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assert!(!actual.out.contains('1'));
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}
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#[test]
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fn while_break_on_external_failed() {
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let actual =
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nu!("mut total = 0; while $total < 2 { $total = $total + 1; print 1; nu --testbin fail }");
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// Note: nu! macro auto replace "\n" and "\r\n" with ""
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// so our output will be `1`
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assert_eq!(actual.out, "1");
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}
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#[test]
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fn failed_while_should_break_running() {
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let actual =
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nu!("mut total = 0; while $total < 2 { $total = $total + 1; nu --testbin fail }; print 3");
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assert!(!actual.out.contains('3'));
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}
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