Question

从scalacheck运行sbt console时，输出受限于66个字符列宽度：

$ sbt test:console

import scalaz._
import Scalaz._
import scalacheck.ScalazProperties._
import scalacheck.ScalazArbitrary._
import scalacheck.ScalaCheckBinding._

scala> monad.laws[List].check
+ monad.applicative.apply.functor.invariantFunctor.identity: OK, passed 100
   tests.
+ monad.applicative.apply.functor.invariantFunctor.composite: OK, passed 10
  0 tests.
+ monad.applicative.apply.functor.identity: OK, passed 100 tests.
+ monad.applicative.apply.functor.composite: OK, passed 100 tests.
+ monad.applicative.apply.composition: OK, passed 100 tests.
+ monad.applicative.identity: OK, passed 100 tests.
+ monad.applicative.homomorphism: OK, passed 100 tests.
+ monad.applicative.interchange: OK, passed 100 tests.
+ monad.applicative.map consistent with ap: OK, passed 100 tests.
+ monad.bind.apply.functor.invariantFunctor.identity: OK, passed 100 tests.
+ monad.bind.apply.functor.invariantFunctor.composite: OK, passed 100 tests
  .
+ monad.bind.apply.functor.identity: OK, passed 100 tests.
+ monad.bind.apply.functor.composite: OK, passed 100 tests.
+ monad.bind.apply.composition: OK, passed 100 tests.
+ monad.bind.associativity: OK, passed 100 tests.
+ monad.bind.ap consistent with bind: OK, passed 100 tests.
+ monad.right identity: OK, passed 100 tests.
+ monad.left identity: OK, passed 100 tests.

有没有办法增加这个限制？

Answer 1

遗憾的是，这不可能改变，因为它在ScalaCheck（https://github.com/rickynils/scalacheck/blob/master/src/main/scala/org/scalacheck/util/ConsoleReporter.scala）中是硬编码的。我建议在ScalaCheck的Github页面上打开一个问题。

Answer 2

由于ConsoleReporter中的宽度值是硬编码的，因此不可能。但是，如果您使用main中定义的Properties运行测试，则可以执行以下操作：

object MyCheck extends Properties("My property check") {

  override def overrideParameters(p: Test.Parameters) =
      p.withTestCallback(WideConsoleReporter)

  ...

}

然后在您自己的代码中，根据WideConsoleReporter创建ConsoleReporter。

如何增加scalacheck控制台输出的char列宽度？

2 个答案: