Struct AssertionFailure 

pub struct AssertionFailure {
    pub message: String,
    pub diff: Option<String>,
    pub location: Option<CallerLocation>,
}

Failure produced by a synchronous value matcher.

message is the formatted, JS-ready failure body (already includes the diff inline so the rquickjs error and a Rust panic carry the same text). diff is the same diff in isolation — handy for reporters that want to colorize / re-render it. location is the #[track_caller] site that invoked the matcher; the test-runner adapter splices it into the printed failure.

Fields

message: String

diff: Option<String>

location: Option<CallerLocation>

Implementations

impl AssertionFailure

pub fn new(message: impl Into<String>, diff: Option<String>) -> Self

pub fn with_location(self, loc: CallerLocation) -> Self

Trait Implementations

impl Clone for AssertionFailure

fn clone(&self) -> AssertionFailure

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AssertionFailure

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

Formats the value using the given formatter.

impl Display for AssertionFailure

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

Formats the value using the given formatter.

impl Error for AssertionFailure

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.