Struct TestChild 

pub struct TestChild { /* private fields */ }

The test’s side of the stand-in from LiveChild::for_tests: it plays the program.

Lines it says reach the application through DetachedHandoff::on_line at the harness’s next step, such as Harness::render; lines said before the handoff was answered wait for it, as they would in a pipe.

Implementations

impl TestChild

pub fn say(&self, line: impl Into<String>)

The program writes line on its standard output. Nothing is said after it ended.

pub fn exit(&self, code: Option<i32>)

The program ends with code (None for a signal): LiveChild::try_wait reports it and ChildLine::Ended is delivered. Only the first end counts.

pub fn written(&self) -> Vec<String>

Every line the application wrote with LiveChild::write_line, oldest first.

pub fn stdin_open(&self) -> bool

Whether the program’s standard input is still open: false after LiveChild::close_stdin and once every LiveChild clone was dropped.

pub fn killed(&self) -> bool

Whether the application called LiveChild::kill.

Trait Implementations

impl Clone for TestChild

fn clone(&self) -> TestChild

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TestChild

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.