Scala & ScalaTest operator === conflict - scala

Question

I want to test operator === of Scalaz using ScalaTest.
I have written simply test:
class ComparisonTest extends FunSuite {
test("=== operator of Scalaz") {
assert(1 === 1) // i want to check/test === operator of Scalaz
}
}
Unfortunately within assert of my test, scala picked operator === from ScalaTest. It did not help if I import explicitly:
import scalaz.Scalaz._
import scalaz._
I also tried:
import scalaz.syntax.EqualOps
assert(new EqualOps[Int](1).===(1)) }
but it did not compile:
Error:(10, 12) constructor EqualOps in class EqualOps cannot be accessed in class ComparisonTest
assert(new EqualOps[Int](1).===(1)) }
Is there any way to do such test of Scalaz ===operator within test of FunSuite? (maybe somhow disable === of ScalaTest)

Answer 1

For new EqualOps[Int](1).===(1)) error, you can use implicitly[Equal[Int]].equal(1, 2) to implicitly get Scalaz Equal implementation.
For disable scalatest Equalizer implicit conversion, you can try to override convertToEqualizer method and remove implicit method modifier.
Example:
class ComparisonTest extends FunSuite {
override def convertToEqualizer[T](left: T): Equalizer[T] = new Equalizer(left)
import scalaz._
import Scalaz._
test("=== operator of Scalaz") {
assert(1 === 1) // i want to check/test === operator of Scalaz
}
}
this is a tricky way to achieve this, best way maybe need scalatest change Equalizer inject way, like by import, and we can unimport the implicit like: import Predef.{any2stringadd}