Trait PathAssert

Source

pub trait PathAssert {
    // Required method
    fn assert<I, P>(&self, pred: I) -> &Self
       where I: IntoUtf8PathPredicate<P>,
             P: Predicate<Utf8Path>;
}

Available on crate feature assert only.

Expand description

Assert the state of files within a Utf8TempDir.

This uses IntoUtf8PathPredicate to provide short-hands for common cases, accepting:

Predicate<Utf8Path> or Predicate<Path> for validating a path.
Predicate<str> for validating the content of the file.
&[u8] or &str representing the content of the file.

Note that both Predicate<Utf8Path> and Predicate<Path> (such as those in [predicates::path]) can be used for validating paths.

See [predicates] for more predicates.

§Examples

use camino_tempfile_ext::prelude::*;
use predicates::prelude::*;

let temp = Utf8TempDir::new().unwrap();
let input_file = temp.child("foo.txt");
input_file.touch().unwrap();

// ... do something with input_file ...

input_file.assert("");
temp.child("bar.txt").assert(predicate::path::missing());

temp.close().unwrap();

Required Methods§

Source

fn assert<I, P>(&self, pred: I) -> &Self
where I: IntoUtf8PathPredicate<P>, P: Predicate<Utf8Path>,

Assert the state of files within a Utf8TempDir.

This uses IntoUtf8PathPredicate to provide short-hands for common cases, accepting:

Predicate<Path> for validating a path.
Predicate<str> for validating the content of the file.
&[u8] or &str representing the content of the file.

Note that accepted predicates are of type Predicate<Path>, not Predicate<Utf8Path>, so that predicates from [predicates::path] can be used.

See [predicates] for more predicates.

§Examples

use camino_tempfile_ext::prelude::*;
use predicates::prelude::*;

let temp = Utf8TempDir::new().unwrap();
let input_file = temp.child("foo.txt");
input_file.touch().unwrap();

// ... do something with input_file ...

input_file.assert("");
temp.child("bar.txt").assert(predicate::path::missing());

temp.close().unwrap();