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Diffstat (limited to 'test/files/scalacheck/treemap.scala')
| -rw-r--r-- | test/files/scalacheck/treemap.scala | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/files/scalacheck/treemap.scala b/test/files/scalacheck/treemap.scala index 9970bb01aa..7d5f94d58b 100644 --- a/test/files/scalacheck/treemap.scala +++ b/test/files/scalacheck/treemap.scala @@ -96,6 +96,21 @@ object Test extends Properties("TreeMap") { prefix == subject.take(n) && suffix == subject.drop(n) } + property("takeWhile") = forAll { (subject: TreeMap[Int, String]) => + val result = subject.takeWhile(_._1 < 0) + result.forall(_._1 < 0) && result == subject.take(result.size) + } + + property("dropWhile") = forAll { (subject: TreeMap[Int, String]) => + val result = subject.dropWhile(_._1 < 0) + result.forall(_._1 >= 0) && result == subject.takeRight(result.size) + } + + property("span identity") = forAll { (subject: TreeMap[Int, String]) => + val (prefix, suffix) = subject.span(_._1 < 0) + prefix.forall(_._1 < 0) && suffix.forall(_._1 >= 0) && subject == prefix ++ suffix + } + property("remove single") = forAll { (subject: TreeMap[Int, String]) => subject.nonEmpty ==> { val key = oneOf(subject.keys.toSeq).sample.get val removed = subject - key |