116 lines
2.8 KiB
Rust
116 lines
2.8 KiB
Rust
use nu_test_support::nu;
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#[test]
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fn let_name_builtin_var() {
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let actual = nu!("let in = 3");
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assert!(actual
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.err
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.contains("'in' is the name of a builtin Nushell variable"));
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}
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#[test]
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fn let_doesnt_mutate() {
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let actual = nu!("let i = 3; $i = 4");
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assert!(actual.err.contains("immutable"));
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}
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#[test]
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fn let_takes_pipeline() {
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let actual = nu!(r#"let x = "hello world" | str length; print $x"#);
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assert_eq!(actual.out, "11");
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}
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#[test]
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fn let_takes_pipeline_with_declared_type() {
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let actual = nu!(r#"let x: list<string> = [] | append "hello world"; print $x.0"#);
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assert_eq!(actual.out, "hello world");
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}
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#[test]
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fn let_pipeline_allows_in() {
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let actual =
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nu!(r#"def foo [] { let x = $in | str length; print ($x + 10) }; "hello world" | foo"#);
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assert_eq!(actual.out, "21");
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}
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#[test]
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fn mut_takes_pipeline() {
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let actual = nu!(r#"mut x = "hello world" | str length; print $x"#);
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assert_eq!(actual.out, "11");
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}
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#[test]
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fn mut_pipeline_allows_in() {
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let actual =
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nu!(r#"def foo [] { mut x = $in | str length; print ($x + 10) }; "hello world" | foo"#);
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assert_eq!(actual.out, "21");
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}
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#[test]
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fn let_pipeline_redirects_internals() {
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let actual = nu!(r#"let x = echo 'bar'; $x | str length"#);
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assert_eq!(actual.out, "3");
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}
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#[test]
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fn let_pipeline_redirects_externals() {
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let actual = nu!(r#"let x = nu --testbin cococo 'bar'; $x | str length"#);
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assert_eq!(actual.out, "3");
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}
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#[test]
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fn let_err_pipeline_redirects_externals() {
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let actual = nu!(
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r#"let x = with-env { FOO: "foo" } {nu --testbin echo_env_stderr FOO e>| str length}; $x"#
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);
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assert_eq!(actual.out, "3");
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}
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#[test]
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fn let_outerr_pipeline_redirects_externals() {
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let actual = nu!(
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r#"let x = with-env { FOO: "foo" } {nu --testbin echo_env_stderr FOO o+e>| str length}; $x"#
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);
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assert_eq!(actual.out, "3");
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}
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#[ignore]
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#[test]
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fn let_with_external_failed() {
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// FIXME: this test hasn't run successfully for a long time. We should
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// bring it back to life at some point.
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let actual = nu!(r#"let x = nu --testbin outcome_err "aa"; echo fail"#);
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assert!(!actual.out.contains("fail"));
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}
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#[test]
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fn let_glob_type() {
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let actual = nu!("let x: glob = 'aa'; $x | describe");
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assert_eq!(actual.out, "glob");
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}
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#[test]
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fn let_raw_string() {
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let actual = nu!(r#"let x = r#'abcde""fghi"''''jkl'#; $x"#);
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assert_eq!(actual.out, r#"abcde""fghi"''''jkl"#);
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let actual = nu!(r#"let x = r##'abcde""fghi"''''#jkl'##; $x"#);
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assert_eq!(actual.out, r#"abcde""fghi"''''#jkl"#);
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let actual = nu!(r#"let x = r###'abcde""fghi"'''##'#jkl'###; $x"#);
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assert_eq!(actual.out, r#"abcde""fghi"'''##'#jkl"#);
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let actual = nu!(r#"let x = r#'abc'#; $x"#);
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assert_eq!(actual.out, "abc");
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}
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