Added presentation compiler tests.

1 files changed, 43 insertions, 0 deletions

diff --git a/test/files/presentation/find-trees/FindTrees.scala b/test/files/presentation/find-trees/FindTrees.scala
new file mode 100644
index 0000000000..38ac2984c1
--- /dev/null
+++ b/test/files/presentation/find-trees/FindTrees.scala
@@ -0,0 +1,43 @@
+import scala.tools.nsc.interactive.tests.InteractiveTest
+import scala.tools.nsc.util.Position
+
+
+/** Example interactive test that does everything by hand. It would be much simpler
+ *  to just add the markers in the test file. This test shows how to drive
+ *  the presentation compiler manually.
+ */
+object Test extends InteractiveTest {
+
+  def askForPos(pos: Position) {
+    import compiler._
+    val response = new Response[Tree]
+
+    println("asking position at %d:%d".format(pos.line, pos.column))
+    compiler.askTypeAt(pos, response)
+    response.get match {
+      case Left(EmptyTree) =>
+        println("error retrieving tree at %d:%d".format(pos.line, pos.column))
+      case Left(t) =>
+        println("retrieved tree: " + t)
+    }
+    println(this.reporter.infos.mkString("\n"))
+  }
+
+  override def runTest {
+    import compiler._
+    val src = sourceFiles(0) // only one under src/
+    val pos = rangePos(src, 426, 426, 433)
+    val pos1 = src.position(19, 15)
+
+    // reload is issued already by the framework, but we can redo it here as an example
+    val reload = new Response[Unit]
+    compiler.askReload(List(src), reload)
+    reload.get // it's important to let reload finish before asking other things.
+
+    askForPos(pos)
+    println("=" * 20)
+    askForPos(pos1)
+
+    compiler.askShutdown()
+  }
+}