Enum ErrorKind 

#[non_exhaustive]
pub enum ErrorKind {
    Assertion,
    Setup,
    Timeout,
    Snapshot,
    Property,
    Custom,
}

The category of a TestError.

The kind selects the headline of the rendered failure and lets tooling group failures (a setup failure is not the same as an assertion miss).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Assertion

An assertion did not hold (the common case).

Setup

Test setup failed before the assertions could run (fixtures).

Timeout

An operation did not complete within its deadline.

Snapshot

A snapshot did not match its stored value.

Property

A property failed for some generated input.

Custom

A failure that does not fit the other kinds, including errors propagated from non-test-better code via ?.

Implementations

impl ErrorKind

pub fn headline(self) -> &'static str

The headline shown on the first line of a rendered failure.

Trait Implementations

impl Clone for ErrorKind

fn clone(&self) -> ErrorKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ErrorKind

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ErrorKind

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for ErrorKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for ErrorKind

fn eq(&self, other: &ErrorKind) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ErrorKind

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for ErrorKind

impl Eq for ErrorKind

impl StructuralPartialEq for ErrorKind