Trait mockall::Predicate[−]

pub trait Predicate<Item>: PredicateReflection where
    Item: ?Sized, {
    fn eval(&self, variable: &Item) -> bool;

    fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>> { ... }
}

Expand description

Trait for generically evaluating a type against a dynamically created predicate function.

The exact meaning of eval depends on the situation, but will usually mean that the evaluated item is in some sort of pre-defined set. This is different from Ord and Eq in that an item will almost never be the same type as the implementing Predicate type.

Required methods

fn eval(&self, variable: &Item) -> bool

Execute this Predicate against variable, returning the resulting boolean.

Provided methods

fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>

Find a case that proves this predicate as expected when run against variable.

Implementations on Foreign Types

impl<'a, T> Predicate<T> for EqPredicate<&'a T> where
    T: Debug + PartialEq<T> + ?Sized,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'b self, expected: bool, variable: &T) -> Option<Case<'b>>

impl<P> Predicate<[u8]> for Utf8Predicate<P> where
    P: Predicate<str>,

pub fn eval(&self, variable: &[u8]) -> bool

pub fn find_case(&'a self, expected: bool, variable: &[u8]) -> Option<Case<'a>>

impl<P> Predicate<OsStr> for Utf8Predicate<P> where
    P: Predicate<str>,

pub fn eval(&self, variable: &OsStr) -> bool

pub fn find_case(&'a self, expected: bool, variable: &OsStr) -> Option<Case<'a>>

impl<M1, M2, Item> Predicate<Item> for OrPredicate<M1, M2, Item> where
    Item: ?Sized,
    M1: Predicate<Item>,
    M2: Predicate<Item>,

pub fn eval(&self, item: &Item) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>

impl<'a, T> Predicate<T> for OrdInPredicate<&'a T> where
    T: Ord + Debug + ?Sized,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'b self, expected: bool, variable: &T) -> Option<Case<'b>>

impl Predicate<str> for EndsWithPredicate

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl Predicate<[u8]> for BinaryFilePredicate

pub fn eval(&self, actual: &[u8]) -> bool

pub fn find_case(&'a self, expected: bool, variable: &[u8]) -> Option<Case<'a>>

impl<Item> Predicate<Item> for BoxPredicate<Item> where
    Item: ?Sized,

pub fn eval(&self, variable: &Item) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>

impl Predicate<str> for StartsWithPredicate

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl<P> Predicate<str> for TrimPredicate<P> where
    P: Predicate<str>,

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl<'a, T> Predicate<T> for InPredicate<&'a T> where
    T: PartialEq<T> + Debug + ?Sized,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'b self, expected: bool, variable: &T) -> Option<Case<'b>>

impl Predicate<Path> for StrFilePredicate

pub fn eval(&self, path: &Path) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Path) -> Option<Case<'a>>

impl<T> Predicate<T> for OrdPredicate<T> where
    T: Debug + PartialOrd<T>,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>

impl Predicate<str> for DifferencePredicate

pub fn eval(&self, edit: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl<Item> Predicate<Item> for BooleanPredicate where
    Item: ?Sized,

pub fn eval(&self, _variable: &Item) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>

impl Predicate<f64> for IsClosePredicate

pub fn eval(&self, variable: &f64) -> bool

pub fn find_case(&'a self, expected: bool, variable: &f64) -> Option<Case<'a>>

impl<P> Predicate<Path> for FileContentPredicate<P> where
    P: Predicate<[u8]>,

pub fn eval(&self, path: &Path) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Path) -> Option<Case<'a>>

impl Predicate<str> for IsEmptyPredicate

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl<T> Predicate<T> for EqPredicate<T> where
    T: Debug + PartialEq<T>,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>

impl<T> Predicate<T> for InPredicate<T> where
    T: PartialEq<T> + Debug,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>

impl Predicate<Path> for FileTypePredicate

pub fn eval(&self, path: &Path) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Path) -> Option<Case<'a>>

impl Predicate<Path> for BinaryFilePredicate

pub fn eval(&self, path: &Path) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Path) -> Option<Case<'a>>

impl<T> Predicate<T> for OrdInPredicate<T> where
    T: Ord + Debug,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>

impl<M1, M2, Item> Predicate<Item> for AndPredicate<M1, M2, Item> where
    Item: ?Sized,
    M1: Predicate<Item>,
    M2: Predicate<Item>,

pub fn eval(&self, item: &Item) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>

impl<'a, T> Predicate<T> for HashableInPredicate<&'a T> where
    T: Hash + Eq + Debug + ?Sized,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'b self, expected: bool, variable: &T) -> Option<Case<'b>>

impl<P> Predicate<str> for NormalizedPredicate<P> where
    P: Predicate<str>,

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl<M, Item> Predicate<Item> for NotPredicate<M, Item> where
    Item: ?Sized,
    M: Predicate<Item>,

pub fn eval(&self, item: &Item) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>

impl Predicate<str> for RegexPredicate

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl Predicate<str> for ContainsPredicate

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl Predicate<str> for MatchesPredicate

pub fn eval(&self, variable: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl Predicate<str> for StrFilePredicate

pub fn eval(&self, actual: &str) -> bool

pub fn find_case(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

impl Predicate<Path> for ExistencePredicate

pub fn eval(&self, path: &Path) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Path) -> Option<Case<'a>>

impl<F, T> Predicate<T> for FnPredicate<F, T> where
    T: ?Sized,
    F: Fn(&T) -> bool,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>

impl<'a, T> Predicate<T> for OrdPredicate<&'a T> where
    T: Debug + PartialOrd<T> + ?Sized,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'b self, expected: bool, variable: &T) -> Option<Case<'b>>

impl<T> Predicate<T> for HashableInPredicate<T> where
    T: Hash + Eq + Debug,

pub fn eval(&self, variable: &T) -> bool

pub fn find_case(&'a self, expected: bool, variable: &T) -> Option<Case<'a>>

impl<M, Item> Predicate<Item> for NamePredicate<M, Item> where
    Item: ?Sized,
    M: Predicate<Item>,

pub fn eval(&self, item: &Item) -> bool

pub fn find_case(&'a self, expected: bool, variable: &Item) -> Option<Case<'a>>

Implementors