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https://github.com/nushell/nushell.git
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406df7f208
# Description Judiciously try to avoid allocations/clone by changing the signature of functions - **Don't pass str by value unnecessarily if only read** - **Don't require a vec in `Sandbox::with_files`** - **Remove unnecessary string clone** - **Fixup unnecessary borrow** - **Use `&str` in shape color instead** - **Vec -> Slice** - **Elide string clone** - **Elide `Path` clone** - **Take &str to elide clone in tests** # User-Facing Changes None # Tests + Formatting This touches many tests purely in changing from owned to borrowed/static data
92 lines
2.2 KiB
Rust
92 lines
2.2 KiB
Rust
use nu_test_support::fs::Stub::EmptyFile;
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use nu_test_support::nu;
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use nu_test_support::playground::Playground;
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#[test]
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fn gets_first_rows_by_amount() {
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Playground::setup("first_test_1", |dirs, sandbox| {
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sandbox.with_files(&[
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EmptyFile("los.txt"),
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EmptyFile("tres.txt"),
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EmptyFile("amigos.txt"),
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EmptyFile("arepas.clu"),
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]);
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let actual = nu!(cwd: dirs.test(), "ls | first 3 | length");
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assert_eq!(actual.out, "3");
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})
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}
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#[test]
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fn gets_all_rows_if_amount_higher_than_all_rows() {
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Playground::setup("first_test_2", |dirs, sandbox| {
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sandbox.with_files(&[
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EmptyFile("los.txt"),
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EmptyFile("tres.txt"),
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EmptyFile("amigos.txt"),
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EmptyFile("arepas.clu"),
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]);
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let actual = nu!(
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cwd: dirs.test(), "ls | first 99 | length");
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assert_eq!(actual.out, "4");
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})
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}
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#[test]
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fn gets_first_row_when_no_amount_given() {
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Playground::setup("first_test_3", |dirs, sandbox| {
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sandbox.with_files(&[EmptyFile("caballeros.txt"), EmptyFile("arepas.clu")]);
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// FIXME: We should probably change first to return a one row table instead of a record here
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let actual = nu!(cwd: dirs.test(), "ls | first | values | length");
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assert_eq!(actual.out, "4");
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})
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}
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#[test]
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fn gets_first_row_as_list_when_amount_given() {
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let actual = nu!("[1, 2, 3] | first 1 | describe");
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assert_eq!(actual.out, "list<int>");
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}
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#[test]
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fn gets_first_bytes() {
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let actual = nu!("(0x[aa bb cc] | first 2) == 0x[aa bb]");
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn gets_first_byte() {
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let actual = nu!("0x[aa bb cc] | first");
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assert_eq!(actual.out, "170");
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}
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#[test]
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// covers a situation where `first` used to behave strangely on list<binary> input
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fn works_with_binary_list() {
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let actual = nu!("([0x[01 11]] | first) == 0x[01 11]");
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assert_eq!(actual.out, "true");
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}
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#[test]
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fn errors_on_negative_rows() {
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let actual = nu!("[1, 2, 3] | first -10");
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assert!(actual.err.contains("use a positive value"));
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}
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#[test]
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fn errors_on_empty_list_when_no_rows_given() {
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let actual = nu!("[] | first");
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assert!(actual.err.contains("index too large"));
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}
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