hamcrest2 0.3.0

A port of the Hamcrest testing library. Fork of original hamcrest-rust (which is unmaintained) with extra matchers, better docs etc.
Documentation 
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// Copyright 2017 Flier Lu
// Copyright 2018 Val Markovic
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

use std::fmt::{self, Display};
use std::marker::PhantomData;

use crate::core::*;

pub struct Any<T, M>(M, PhantomData<T>);

pub fn any<T, M>(matchers: M) -> Any<T, M> {
  Any(matchers, PhantomData)
}

#[macro_export]
macro_rules! any {
    ($( $arg:expr ),*) => ($crate::matchers::any::any(($( $arg ),*)))
}

#[macro_export]
#[deprecated(since = "0.2.0", note = "Use any!() instead")]
macro_rules! any_of {
    ($( $arg:expr ),*) => ($crate::matchers::any::any(($( $arg ),*)))
}

impl<T, M0, M1> Display for Any<T, (M0, M1)>
where
  M0: Display,
  M1: Display,
{
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    let (ref m0, ref m1) = self.0;

    write!(f, "any of ({}, {})", m0, m1)
  }
}

impl<T, M0, M1> Matcher<T> for Any<T, (M0, M1)>
where
  T: Clone,
  M0: Matcher<T>,
  M1: Matcher<T>,
{
  fn matches(&self, actual: T) -> MatchResult {
    let (ref m0, ref m1) = self.0;

    m0.matches(actual.clone())
      .or_else(|_| m1.matches(actual.clone()))
  }
}

impl<T, M0, M1, M2> Display for Any<T, (M0, M1, M2)>
where
  M0: Display,
  M1: Display,
  M2: Display,
{
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    let (ref m0, ref m1, ref m2) = self.0;

    write!(f, "any of ({}, {}, {})", m0, m1, m2)
  }
}

impl<T, M0, M1, M2> Matcher<T> for Any<T, (M0, M1, M2)>
where
  T: Clone,
  M0: Matcher<T>,
  M1: Matcher<T>,
  M2: Matcher<T>,
{
  fn matches(&self, actual: T) -> MatchResult {
    let (ref m0, ref m1, ref m2) = self.0;

    m0.matches(actual.clone())
      .or_else(|_| m1.matches(actual.clone()))
      .or_else(|_| m2.matches(actual.clone()))
  }
}

impl<T, M0, M1, M2, M3> Display for Any<T, (M0, M1, M2, M3)>
where
  M0: Display,
  M1: Display,
  M2: Display,
  M3: Display,
{
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    let (ref m0, ref m1, ref m2, ref m3) = self.0;

    write!(f, "any of ({}, {}, {}, {})", m0, m1, m2, m3)
  }
}

impl<T, M0, M1, M2, M3> Matcher<T> for Any<T, (M0, M1, M2, M3)>
where
  T: Clone,
  M0: Matcher<T>,
  M1: Matcher<T>,
  M2: Matcher<T>,
  M3: Matcher<T>,
{
  fn matches(&self, actual: T) -> MatchResult {
    let (ref m0, ref m1, ref m2, ref m3) = self.0;

    m0.matches(actual.clone())
      .or_else(|_| m1.matches(actual.clone()))
      .or_else(|_| m2.matches(actual.clone()))
      .or_else(|_| m3.matches(actual.clone()))
  }
}

impl<T, M0, M1, M2, M3, M4> Display for Any<T, (M0, M1, M2, M3, M4)>
where
  M0: Display,
  M1: Display,
  M2: Display,
  M3: Display,
  M4: Display,
{
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    let (ref m0, ref m1, ref m2, ref m3, ref m4) = self.0;

    write!(f, "any of ({}, {}, {}, {}, {})", m0, m1, m2, m3, m4)
  }
}

impl<T, M0, M1, M2, M3, M4> Matcher<T> for Any<T, (M0, M1, M2, M3, M4)>
where
  T: Clone,
  M0: Matcher<T>,
  M1: Matcher<T>,
  M2: Matcher<T>,
  M3: Matcher<T>,
  M4: Matcher<T>,
{
  fn matches(&self, actual: T) -> MatchResult {
    let (ref m0, ref m1, ref m2, ref m3, ref m4) = self.0;

    m0.matches(actual.clone())
      .or_else(|_| m1.matches(actual.clone()))
      .or_else(|_| m2.matches(actual.clone()))
      .or_else(|_| m3.matches(actual.clone()))
      .or_else(|_| m4.matches(actual.clone()))
  }
}

impl<T, M0, M1, M2, M3, M4, M5> Display for Any<T, (M0, M1, M2, M3, M4, M5)>
where
  M0: Display,
  M1: Display,
  M2: Display,
  M3: Display,
  M4: Display,
  M5: Display,
{
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    let (ref m0, ref m1, ref m2, ref m3, ref m4, ref m5) = self.0;

    write!(f, "any of ({}, {}, {}, {}, {}, {})", m0, m1, m2, m3, m4, m5)
  }
}

impl<T, M0, M1, M2, M3, M4, M5> Matcher<T> for Any<T, (M0, M1, M2, M3, M4, M5)>
where
  T: Clone,
  M0: Matcher<T>,
  M1: Matcher<T>,
  M2: Matcher<T>,
  M3: Matcher<T>,
  M4: Matcher<T>,
  M5: Matcher<T>,
{
  fn matches(&self, actual: T) -> MatchResult {
    let (ref m0, ref m1, ref m2, ref m3, ref m4, ref m5) = self.0;

    m0.matches(actual.clone())
      .or_else(|_| m1.matches(actual.clone()))
      .or_else(|_| m2.matches(actual.clone()))
      .or_else(|_| m3.matches(actual.clone()))
      .or_else(|_| m4.matches(actual.clone()))
      .or_else(|_| m5.matches(actual.clone()))
  }
}