Struct MockRunner 

pub struct MockRunner { /* private fields */ }

Test runner that records every call and returns scripted responses.

Calls not registered with MockRunner::with return exit code 0 with empty output. Runner::run_as_root behaves as if sudo is on PATH unless MockRunner::without_sudo is used, independent of the host.

Implementations

impl MockRunner

pub fn new() -> Self

Create a new empty mock runner (all calls succeed by default).

pub fn without_sudo(self) -> Self

Behave as a host without sudo: root commands run directly.

pub fn with(self, cmd: &str, args: &[&str], resp: MockResponse) -> Self

Register a scripted response. cmd and args must match exactly.

pub fn calls(&self) -> Vec<(String, Vec<String>)>

Return a snapshot of all calls made so far.

Trait Implementations

impl Default for MockRunner

fn default() -> Self

Returns the “default value” for a type.

impl Runner for MockRunner

fn run(&self, cmd: &str, args: &[&str]) -> Result<RunOutcome, Error>

Run cmd with args. Returns a RunOutcome on success, or an I/O error if the process could not be spawned at all.

fn run_as_root(&self, cmd: &str, args: &[&str]) -> Result<RunOutcome, Error>

Run cmd with root privileges: through sudo when it is on PATH, otherwise directly. Containers and minimal installs often run as root with no sudo at all; a non-root user without sudo gets the manager’s own permission error.