nushell/crates/nu-command/tests/commands/path/exists.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

93 lines
2.4 KiB
Rust

use nu_test_support::fs::Stub::EmptyFile;
use nu_test_support::nu;
use nu_test_support::playground::Playground;
#[test]
fn checks_if_existing_file_exists() {
Playground::setup("path_exists_1", |dirs, sandbox| {
sandbox.with_files(&[EmptyFile("spam.txt")]);
let actual = nu!(
cwd: dirs.test(),
"echo spam.txt | path exists"
);
assert_eq!(actual.out, "true");
})
}
#[test]
fn checks_if_missing_file_exists() {
Playground::setup("path_exists_2", |dirs, _| {
let actual = nu!(
cwd: dirs.test(),
"echo spam.txt | path exists"
);
assert_eq!(actual.out, "false");
})
}
#[test]
fn checks_if_dot_exists() {
Playground::setup("path_exists_3", |dirs, _| {
let actual = nu!(
cwd: dirs.test(),
"echo '.' | path exists"
);
assert_eq!(actual.out, "true");
})
}
#[test]
fn checks_if_double_dot_exists() {
Playground::setup("path_exists_4", |dirs, _| {
let actual = nu!(
cwd: dirs.test(),
"echo '..' | path exists"
);
assert_eq!(actual.out, "true");
})
}
#[test]
fn checks_tilde_relative_path_exists() {
let actual = nu!("'~' | path exists");
assert_eq!(actual.out, "true");
}
#[test]
fn const_path_exists() {
let actual = nu!("const exists = ('~' | path exists); $exists");
assert_eq!(actual.out, "true");
}
#[test]
fn test_check_symlink_exists() {
use nu_test_support::{nu, playground::Playground};
let symlink_target = "symlink_target";
let symlink = "symlink";
Playground::setup("path_exists_5", |dirs, sandbox| {
#[cfg(not(windows))]
std::os::unix::fs::symlink(dirs.test().join(symlink_target), dirs.test().join(symlink))
.unwrap();
#[cfg(windows)]
std::os::windows::fs::symlink_file(
dirs.test().join(symlink_target),
dirs.test().join(symlink),
)
.unwrap();
let false_out = "false".to_string();
let shell_res = nu!(cwd: sandbox.cwd(), "'symlink_target' | path exists");
assert_eq!(false_out, shell_res.out);
let shell_res = nu!(cwd: sandbox.cwd(), "'symlink' | path exists");
assert_eq!(false_out, shell_res.out);
let shell_res = nu!(cwd: sandbox.cwd(), "'symlink' | path exists -n");
assert_eq!("true".to_string(), shell_res.out);
});
}