org.specs2.matcher.CanBeEqual.scala Maven / Gradle / Ivy
package org.specs2
package matcher
/**
* This trait adds some implicits to create expectations with the `===` sign
*/
trait CanBeEqual { this: Expectations =>
/**
* A value can be tested against another with the === operator.
* It is equivalent to writing a must_== b
*/
implicit def canBeEqual[T](t: =>T) = new CanBeEqualExpectation(t)
class CanBeEqualExpectation[T](t: =>T) {
/** equality matcher on Expectables */
def ===[S >: T](other: =>S) = createExpectable(t).applyMatcher(new BeEqualTo(other))
/** ! equality matcher on Expectables */
def !==[S >: T](other: =>S) = createExpectable(t).applyMatcher(new BeEqualTo(other).not)
/** typed equality matcher on Expectables */
def ====(other: =>T) = createExpectable(t).applyMatcher(new BeTypedEqualTo(other))
/** ! typed equality matcher on Expectables */
def !===(other: =>T) = createExpectable(t).applyMatcher(new BeTypedEqualTo(other).not)
}
}
/**
* This trait can be used to suppress the CanBeEqual implicits
*/
trait NoCanBeEqual extends CanBeEqual { this: Expectations =>
override def canBeEqual[T](t: =>T) = super.canBeEqual(t)
}