Struct xpct::matchers::Mismatch

pub struct Mismatch<Expected, Actual> {
    pub expected: Expected,
    pub actual: Actual,
}

A value that is returned by matchers when the expected and actual values differ.

This is meant to be a deliberately generic value that can be reused in a number of different matchers and formatted with MismatchFormat.

This can be used for matchers like equal to represent two values being not equal, but it can also be used for matchers like be_lt or be_ge to represent different kinds of relationships.

Use this over Expectation when you want to record the “expected” value alongside the actual value.

When returned by a matcher, this value just means, “here is the expected value and here is the actual value.” It’s up to the formatter to determine how that information is presented to the user.

Fields

expected: Expected

The expected value.

actual: Actual

The actual value.

Trait Implementations

impl<Expected: Clone, Actual: Clone> Clone for Mismatch<Expected, Actual>

fn clone(&self) -> Mismatch<Expected, Actual>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Expected: Debug, Actual: Debug> Debug for Mismatch<Expected, Actual>

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

Formats the value using the given formatter.

impl<Expected: PartialEq, Actual: PartialEq> PartialEq<Mismatch<Expected, Actual>> for Mismatch<Expected, Actual>

fn eq(&self, other: &Mismatch<Expected, Actual>) -> bool

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

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

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

impl<Expected: Eq, Actual: Eq> Eq for Mismatch<Expected, Actual>

impl<Expected, Actual> StructuralEq for Mismatch<Expected, Actual>

impl<Expected, Actual> StructuralPartialEq for Mismatch<Expected, Actual>