Trait assert_cmd::assert::IntoOutputPredicate

pub trait IntoOutputPredicate<P>
where
    P: Predicate<[u8]>,
{
    type Predicate;

    // Required method
    fn into_output(self) -> P;
}

Used by Assert::stdout and Assert::stderr to convert Self into the needed [predicates_core::Predicate<[u8]>].

Examples

use assert_cmd::prelude::*;

use std::process::Command;
use predicates::prelude::*;

Command::cargo_bin("bin_fixture")
    .unwrap()
    .env("stdout", "hello")
    .env("stderr", "world")
    .assert()
    .stdout(predicate::str::diff("hello\n").from_utf8());

// which can be shortened to:
Command::cargo_bin("bin_fixture")
    .unwrap()
    .env("stdout", "hello")
    .env("stderr", "world")
    .assert()
    .stdout("hello\n");

Required Associated Types

type Predicate

The type of the predicate being returned.

Required Methods

fn into_output(self) -> P

Convert to a predicate for testing a path.

Implementations on Foreign Types

impl IntoOutputPredicate<BytesContentOutputPredicate> for &'static [u8]

type Predicate = BytesContentOutputPredicate

fn into_output(self) -> Self::Predicate

impl IntoOutputPredicate<BytesContentOutputPredicate> for Vec<u8>

type Predicate = BytesContentOutputPredicate

fn into_output(self) -> Self::Predicate

impl IntoOutputPredicate<StrContentOutputPredicate> for &'static str

type Predicate = StrContentOutputPredicate

fn into_output(self) -> Self::Predicate

impl IntoOutputPredicate<StrContentOutputPredicate> for String

type Predicate = StrContentOutputPredicate

fn into_output(self) -> Self::Predicate

Implementors

impl<P> IntoOutputPredicate<StrOutputPredicate<P>> for P

where P: Predicate<str>,

type Predicate = StrOutputPredicate<P>

impl<P> IntoOutputPredicate<P> for P

where P: Predicate<[u8]>,

type Predicate = P