Enable 440 run tests that pass.

Note that some of them may pass due to several bugs that interfere.

1 files changed, 38 insertions, 0 deletions

diff --git a/tests/run/t4835.scala b/tests/run/t4835.scala
new file mode 100644
index 000000000..26275c0ab
--- /dev/null
+++ b/tests/run/t4835.scala
@@ -0,0 +1,38 @@
+/*
+ * Test case for SI-4835.  This tests confirm that the fix
+ * doesn't break laziness.  To test memory consumption,
+ * I need to confirm that OutOfMemoryError doesn't occur.
+ * I could create such tests.  However, such tests consume
+ * too much time and memory.
+ */
+object Test {
+  private final val INFINITE = -1
+  def testStreamIterator(num: Int, stream: Stream[Int]): Unit = {
+    val iter = stream.iterator
+    print(num)
+    // if num == -1, then steram is infinite sequence
+    if (num == INFINITE) {
+      for(i <- 0 until 10) {
+        print(" " + iter.next())
+      }
+    } else {
+      while(iter.hasNext) {
+        print(" " + iter.next())
+      }
+    }
+    println()
+  }
+
+  def main(args: Array[String]): Unit = {
+    import Stream.{from, cons, empty}
+    testStreamIterator(INFINITE, from(0))
+    testStreamIterator(INFINITE, from(0).filter(_ % 2 == 1))
+    testStreamIterator(1, Stream(1))
+    testStreamIterator(2, Stream(1, 2))
+    //Stream with side effect
+    testStreamIterator(2, cons(1, cons({ print(" A"); 2}, empty)))
+    testStreamIterator(3, Stream(1, 2, 3))
+    //Stream with side effect
+    testStreamIterator(3, cons(1, cons({ print(" A"); 2}, cons({ print(" B"); 3}, Stream.empty))))
+  }
+}