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ai.x.diff with a Matcher
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import org.specs2.matcher._, MatchersImplicits._ | |
def beSimilarTo[T : DiffShow](expected: T): Matcher[T] = { actual: T => | |
val difference = DiffShow[T].diff(actual, expected) | |
difference match { | |
case Identical(_) => (true, difference.string) | |
case Different(_) => (false, difference.string) | |
} | |
} | |
sealed trait Parent | |
case class Bar( s: String, i: Int ) extends Parent | |
case class Foo( bar: Bar, b: List[Int], parent: Option[Parent] ) extends Parent | |
val before: Foo = Foo( | |
Bar( "asdf", 5 ), | |
List( 123, 1234 ), | |
Some( Bar( "asdf", 5 ) ) | |
) | |
val after: Foo = Foo( | |
Bar( "asdf", 66 ), | |
List( 1234 ), | |
Some( Bar( "qwer", 5 ) ) | |
) | |
before must beSimilarTo(after) |
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[error] ! before must beSimilarTo(after) | |
[error] java.lang.Exception: Cannot find DiffShow[de.zalando.artmc.mi.config.Parent] to diff values (Bar(asdf,5), Bar(qwer,5)) (diff.scala:112) | |
[error] ai.x.diff.DiffShowInstancesLowPriority$$anonfun$fallbackException$4.apply(diff.scala:112) | |
[error] ai.x.diff.DiffShowInstancesLowPriority$$anonfun$fallbackException$4.apply(diff.scala:112) | |
[error] ai.x.diff.DiffShowInstancesLowPriority$$anon$3.diff(diff.scala:105) | |
[error] ai.x.diff.DiffShow$.diff(diff.scala:51) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:93) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:89) | |
[error] ai.x.diff.DiffShowInstances$CaseClassDiffShow.diff(diff.scala:287) | |
[error] ai.x.diff.DiffShowInstances$$anon$6.diff(diff.scala:253) | |
[error] ai.x.diff.DiffShowInstances$$anon$6.diff(diff.scala:244) | |
[error] ai.x.diff.DiffShowInstances$$anon$6.diff(diff.scala:254) | |
[error] ai.x.diff.DiffShowInstances$$anon$6.diff(diff.scala:244) | |
[error] ai.x.diff.DiffShowInstances$$anon$7.diff(diff.scala:267) | |
[error] ai.x.diff.DiffShow$.diff(diff.scala:51) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:93) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:89) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:93) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:89) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:93) | |
[error] ai.x.diff.DiffShowFields$$anon$2.diff(diff.scala:89) | |
[error] ai.x.diff.DiffShowInstances$CaseClassDiffShow.diff(diff.scala:287) |
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Works for me with this code