Struct proptest::test_runner::Reason

pub struct Reason(_);

The reason for why something, such as a generated value, was rejected.

Currently this is merely a wrapper around a message, but more properties may be added in the future.

This is constructed via .into() on a String, &'static str, or Box<str>.

Methods

impl Reason

pub fn message(&self) -> &str

Return the message for this Reason.

The message is intended for human consumption, and is not guaranteed to have any format in particular.

Trait Implementations

impl Clone for Reason

fn clone(&self) -> Reason

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Reason

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

Formats the value using the given formatter.

impl Display for Reason

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

Formats the value using the given formatter.

impl Eq for Reason

impl From<&'static str> for Reason

fn from(s: &'static str) -> Self

Performs the conversion.

impl From<Box<str>> for Reason

fn from(s: Box<str>) -> Self

Performs the conversion.

impl From<String> for Reason

fn from(s: String) -> Self

Performs the conversion.

impl Hash for Reason

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, 

Feeds a slice of this type into the given [Hasher].

impl Ord for Reason

fn cmp(&self, other: &Reason) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

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

Restrict a value to a certain interval.

impl PartialEq<Reason> for Reason

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl PartialOrd<Reason> for Reason

fn partial_cmp(&self, other: &Reason) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Reason) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Reason) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Reason) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Reason) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for Reason

impl StructuralPartialEq for Reason