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Diffstat (limited to 'test/files/run/collection-conversions.scala')
-rw-r--r-- | test/files/run/collection-conversions.scala | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/test/files/run/collection-conversions.scala b/test/files/run/collection-conversions.scala new file mode 100644 index 0000000000..b5c4d8e261 --- /dev/null +++ b/test/files/run/collection-conversions.scala @@ -0,0 +1,60 @@ +import collection._ +import mutable.Buffer +import parallel.immutable.ParVector +import reflect.ClassTag + +object Test { + + def printResult[A,B](msg: String, obj: A, expected: B)(implicit tag: ClassTag[A], tag2: ClassTag[B]) = { + print(" :" + msg +": ") + val isArray = obj match { + case x: Array[Int] => true + case _ => false + } + val expectedEquals = + if(isArray) obj.asInstanceOf[Array[Int]].toSeq == expected.asInstanceOf[Array[Int]].toSeq + else obj == expected + val tagEquals = tag == tag2 + if(expectedEquals && tagEquals) print("OK") + else print("FAILED") + if(!expectedEquals) print(", " + obj + " != " + expected) + if(!tagEquals) print(", " + tag + " != " + tag2) + println("") + } + + val testVector = Vector(1,2,3) + val testBuffer = Buffer(1,2,3) + val testGenSeq = GenSeq(1,2,3) + val testSeq = Seq(1,2,3) + val testStream = Stream(1,2,3) + val testArray = Array(1,2,3) + val testParVector = ParVector(1,2,3) + + def testConversion[A: ClassTag](name: String, col: => GenTraversableOnce[A]): Unit = { + val tmp = col + println("-- Testing " + name + " ---") + printResult("[Direct] Vector ", col.toVector, testVector) + printResult("[Copy] Vector ", col.convertTo[Vector], testVector) + printResult("[Direct] Buffer ", col.toBuffer, testBuffer) + printResult("[Copy] Buffer ", col.convertTo[Buffer], testBuffer) + printResult("[Direct] GenSeq ", col.toSeq, testGenSeq) + printResult("[Copy] GenSeq ", col.convertTo[GenSeq], testGenSeq) + printResult("[Copy] Seq ", col.convertTo[Seq], testSeq) + printResult("[Direct] Stream ", col.toStream, testStream) + printResult("[Copy] Stream ", col.convertTo[Stream], testStream) + printResult("[Direct] Array ", col.toArray, testArray) + printResult("[Copy] Array ", col.convertTo[Array], testArray) + printResult("[Copy] ParVector", col.convertTo[ParVector], testParVector) + } + + def main(args: Array[String]): Unit = { + testConversion("iterator", (1 to 3).iterator) + testConversion("Vector", Vector(1,2,3)) + testConversion("List", List(1,2,3)) + testConversion("Buffer", Buffer(1,2,3)) + testConversion("ParVector", ParVector(1,2,3)) + testConversion("Set", Set(1,2,3)) + testConversion("SetView", Set(1,2,3).view) + testConversion("BufferView", Buffer(1,2,3).view) + } +} |