1 files changed, 50 insertions, 0 deletions
diff --git a/tests/run/sysprops.scala b/tests/run/sysprops.scala
new file mode 100644
index 000000000..bdad67722
--- /dev/null
+++ b/tests/run/sysprops.scala
@@ -0,0 +1,50 @@
+import sys._
+
+/** Basic sys.Prop test. */
+object Test {
+  val key = "ding.dong.doobie"
+
+  def bool() = {
+    val prop = BooleanProp.valueIsTrue(key)
+    assert(prop.key == key)
+
+    prop.clear()
+    assert(!prop.value)
+    assert(!prop.isSet)
+    assert(prop.get != null)
+
+    prop set "dingus"
+    assert(prop.get == "dingus")
+    assert(!prop.value)
+    prop set "true"
+    assert(prop.value)
+    prop.toggle()
+    assert(!prop.value)
+    prop.enable()
+    assert(prop.value)
+    prop.disable()
+    assert(!prop.value)
+  }
+  def int() = {
+    val prop = Prop[Int](key)
+    prop.clear()
+    assert(prop.value == 0)
+    prop.set("523")
+    assert(prop.value == 523)
+    prop.set("DingusInt")
+
+    try { println(prop.value) ; assert(false, "should not get here") }
+    catch { case _: Exception => () }
+  }
+  def double() = {
+    val prop = Prop[Double](key)
+    prop.set("55.0")
+    assert(prop.value == 55.0)
+  }
+
+  def main(args: Array[String]): Unit = {
+    bool()
+    int()
+    double()
+  }
+}