Enum FailureCause 

pub enum FailureCause {
    ReturnedError {
        display: String,
        debug: String,
        prefer_debug: bool,
        error: Arc<dyn Any + Send + Sync>,
    },
    ReturnedMessage(String),
    Panic(PanicCause),
    HarnessError(String),
}

Variants

ReturnedError

Test returned Err(e) where E: Display + Debug — stores both representations and the original error value for later downcasting

Fields

display: String

debug: String

prefer_debug: bool

error: Arc<dyn Any + Send + Sync>

ReturnedMessage(String)

Test returned Err(String) — stored as raw string without formatting

Panic(PanicCause)

Test panicked

HarnessError(String)

Framework error (join failure, timeout, IPC deserialization, etc.)

Implementations

impl FailureCause

pub fn from_error<E>(e: E) -> FailureCause

where E: Display + Debug + Send + Sync + 'static,

pub fn render(&self) -> String

pub fn panic_message(&self) -> Option<&str>

Get the message string for ShouldPanic matching (without backtrace)

Trait Implementations

impl Clone for FailureCause

fn clone(&self) -> FailureCause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FailureCause

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

Formats the value using the given formatter.