diff options
Diffstat (limited to 'test/files/run/t4954.scala')
-rw-r--r-- | test/files/run/t4954.scala | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/test/files/run/t4954.scala b/test/files/run/t4954.scala new file mode 100644 index 0000000000..b4916e651d --- /dev/null +++ b/test/files/run/t4954.scala @@ -0,0 +1,45 @@ + + +import collection._ + + +object Test { + + def main(args: Array[String]) { + val m = scala.collection.mutable.LinkedHashMap("one" -> 1, "two" -> 2, "three" -> 3, "four" -> 4, "five" -> 5) + val expected = List("one", "two", "three", "four", "five") + assert(m.keys.iterator.toList == expected) + assert(m.keys.drop(0).iterator.toList == expected) + assert(m.keys.drop(1).iterator.toList == expected.drop(1)) + assert(m.keys.drop(2).iterator.toList == expected.drop(2)) + assert(m.keys.drop(3).iterator.toList == expected.drop(3)) + assert(m.keys.drop(4).iterator.toList == expected.drop(4)) + assert(m.keys.drop(5).iterator.toList == expected.drop(5)) + + val expvals = List(1, 2, 3, 4, 5) + assert(m.values.iterator.toList == expvals) + assert(m.values.drop(0).iterator.toList == expvals) + assert(m.values.drop(1).iterator.toList == expvals.drop(1)) + assert(m.values.drop(2).iterator.toList == expvals.drop(2)) + assert(m.values.drop(3).iterator.toList == expvals.drop(3)) + assert(m.values.drop(4).iterator.toList == expvals.drop(4)) + assert(m.values.drop(5).iterator.toList == expvals.drop(5)) + + val pred = (x: String) => x.length < 6 + val filtered = m.filterKeys(pred) + assert(filtered.drop(0).keys.toList == expected.filter(pred)) + assert(filtered.drop(1).keys.toList == expected.filter(pred).drop(1)) + assert(filtered.drop(2).keys.toList == expected.filter(pred).drop(2)) + assert(filtered.drop(3).keys.toList == expected.filter(pred).drop(3)) + assert(filtered.drop(4).keys.toList == expected.filter(pred).drop(4)) + + val mapped = m.mapValues(-_) + assert(mapped.drop(0).keys.toList == expected) + assert(mapped.drop(1).keys.toList == expected.drop(1)) + assert(mapped.drop(2).keys.toList == expected.drop(2)) + assert(mapped.drop(3).keys.toList == expected.drop(3)) + assert(mapped.drop(4).keys.toList == expected.drop(4)) + assert(mapped.drop(5).keys.toList == expected.drop(5)) + } + +} |