nushell/crates/nu-command/tests/commands/help.rs
Stefan Holderbach 406df7f208
Avoid taking unnecessary ownership of intermediates (#12740)
# 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
2024-05-04 00:53:15 +00:00

374 lines
10 KiB
Rust

use nu_test_support::fs::Stub::FileWithContent;
use nu_test_support::playground::Playground;
use nu_test_support::{nu, nu_repl_code, pipeline};
// Note: These tests might slightly overlap with tests/scope/mod.rs
#[test]
fn help_commands_length() {
let actual = nu!("help commands | length");
let output = actual.out;
let output_int: i32 = output.parse().unwrap();
let is_positive = output_int.is_positive();
assert!(is_positive);
}
#[test]
fn help_shows_signature() {
let actual = nu!("help str distance");
assert!(actual.out.contains("Input/output types"));
// don't show signature for parser keyword
let actual = nu!("help alias");
assert!(!actual.out.contains("Input/output types"));
}
#[test]
fn help_aliases() {
let code = &[
"alias SPAM = print 'spam'",
"help aliases | where name == SPAM | length",
];
let actual = nu!(nu_repl_code(code));
assert_eq!(actual.out, "1");
}
#[test]
fn help_alias_usage_1() {
Playground::setup("help_alias_usage_1", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
alias SPAM = print 'spam'
"#,
)]);
let code = &[
"source spam.nu",
"help aliases | where name == SPAM | get 0.usage",
];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert_eq!(actual.out, "line1");
})
}
#[test]
fn help_alias_usage_2() {
let code = &[
"alias SPAM = print 'spam' # line2",
"help aliases | where name == SPAM | get 0.usage",
];
let actual = nu!(nu_repl_code(code));
assert_eq!(actual.out, "line2");
}
#[test]
fn help_alias_usage_3() {
Playground::setup("help_alias_usage_3", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
alias SPAM = print 'spam' # line2
"#,
)]);
let code = &[
"source spam.nu",
"help aliases | where name == SPAM | get 0.usage",
];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("line1"));
assert!(actual.out.contains("line2"));
})
}
#[test]
fn help_alias_name() {
Playground::setup("help_alias_name", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
alias SPAM = print 'spam' # line2
"#,
)]);
let code = &["source spam.nu", "help aliases SPAM"];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("line1"));
assert!(actual.out.contains("line2"));
assert!(actual.out.contains("SPAM"));
assert!(actual.out.contains("print 'spam'"));
})
}
#[test]
fn help_alias_name_f() {
Playground::setup("help_alias_name_f", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
alias SPAM = print 'spam' # line2
"#,
)]);
let code = &["source spam.nu", "help aliases -f SPAM | get 0.usage"];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("line1"));
assert!(actual.out.contains("line2"));
})
}
#[test]
fn help_export_alias_name_single_word() {
Playground::setup("help_export_alias_name_single_word", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
export alias SPAM = print 'spam' # line2
"#,
)]);
let code = &["use spam.nu SPAM", "help aliases SPAM"];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("line1"));
assert!(actual.out.contains("line2"));
assert!(actual.out.contains("SPAM"));
assert!(actual.out.contains("print 'spam'"));
})
}
#[test]
fn help_export_alias_name_multi_word() {
Playground::setup("help_export_alias_name_multi_word", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
export alias SPAM = print 'spam' # line2
"#,
)]);
let code = &["use spam.nu", "help aliases spam SPAM"];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("line1"));
assert!(actual.out.contains("line2"));
assert!(actual.out.contains("SPAM"));
assert!(actual.out.contains("print 'spam'"));
})
}
#[test]
fn help_module_usage_1() {
Playground::setup("help_module_usage", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
module SPAM {
# line2
} #line3
"#,
)]);
let code = &[
"source spam.nu",
"help modules | where name == SPAM | get 0.usage",
];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("line1"));
assert!(actual.out.contains("line2"));
assert!(actual.out.contains("line3"));
})
}
#[test]
fn help_module_name() {
Playground::setup("help_module_name", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# line1
module SPAM {
# line2
} #line3
"#,
)]);
let code = &["source spam.nu", "help modules SPAM"];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("line1"));
assert!(actual.out.contains("line2"));
assert!(actual.out.contains("line3"));
assert!(actual.out.contains("SPAM"));
})
}
#[test]
fn help_module_sorted_decls() {
Playground::setup("help_module_sorted_decls", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
module SPAM {
export def z [] {}
export def a [] {}
}
"#,
)]);
let code = &["source spam.nu", "help modules SPAM"];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("a, z"));
})
}
#[test]
fn help_module_sorted_aliases() {
Playground::setup("help_module_sorted_aliases", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
module SPAM {
export alias z = echo 'z'
export alias a = echo 'a'
}
"#,
)]);
let code = &["source spam.nu", "help modules SPAM"];
let actual = nu!(cwd: dirs.test(), nu_repl_code(code));
assert!(actual.out.contains("a, z"));
})
}
#[test]
fn help_usage_extra_usage_command() {
Playground::setup("help_usage_extra_usage_command", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# module_line1
#
# module_line2
# def_line1
#
# def_line2
export def foo [] {}
"#,
)]);
let actual = nu!(cwd: dirs.test(), "use spam.nu *; help modules spam");
assert!(actual.out.contains("module_line1"));
assert!(actual.out.contains("module_line2"));
let actual = nu!(cwd: dirs.test(),
"use spam.nu *; help modules | where name == spam | get 0.usage");
assert!(actual.out.contains("module_line1"));
assert!(!actual.out.contains("module_line2"));
let actual = nu!(cwd: dirs.test(), "use spam.nu *; help commands foo");
assert!(actual.out.contains("def_line1"));
assert!(actual.out.contains("def_line2"));
let actual = nu!(cwd: dirs.test(),
"use spam.nu *; help commands | where name == foo | get 0.usage");
assert!(actual.out.contains("def_line1"));
assert!(!actual.out.contains("def_line2"));
})
}
#[test]
fn help_usage_extra_usage_alias() {
Playground::setup("help_usage_extra_usage_alias", |dirs, sandbox| {
sandbox.with_files(&[FileWithContent(
"spam.nu",
r#"
# module_line1
#
# module_line2
# alias_line1
#
# alias_line2
export alias bar = echo 'bar'
"#,
)]);
let actual = nu!(cwd: dirs.test(), "use spam.nu *; help modules spam");
assert!(actual.out.contains("module_line1"));
assert!(actual.out.contains("module_line2"));
let actual = nu!(cwd: dirs.test(),
"use spam.nu *; help modules | where name == spam | get 0.usage");
assert!(actual.out.contains("module_line1"));
assert!(!actual.out.contains("module_line2"));
let actual = nu!(cwd: dirs.test(), "use spam.nu *; help aliases bar");
assert!(actual.out.contains("alias_line1"));
assert!(actual.out.contains("alias_line2"));
let actual = nu!(cwd: dirs.test(),
"use spam.nu *; help aliases | where name == bar | get 0.usage");
assert!(actual.out.contains("alias_line1"));
assert!(!actual.out.contains("alias_line2"));
})
}
#[test]
fn help_modules_main_1() {
let inp = &[
r#"module spam {
export def main [] { 'foo' };
}"#,
"help spam",
];
let actual = nu!(&inp.join("; "));
assert!(actual.out.contains(" spam"));
}
#[test]
fn help_modules_main_2() {
let inp = &[
r#"module spam {
export def main [] { 'foo' };
}"#,
"help modules | where name == spam | get 0.commands.0.name",
];
let actual = nu!(&inp.join("; "));
assert_eq!(actual.out, "spam");
}
#[test]
fn nothing_type_annotation() {
let actual = nu!(pipeline(
"
def foo []: nothing -> nothing {};
help commands | where name == foo | get input_output.0.output.0
"
));
assert_eq!(actual.out, "nothing");
}