--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.truffle.api.test/src/com/oracle/truffle/api/test/tools/LineToProbesMapTest.java	Tue Jan 27 20:27:25 2015 -0800
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.truffle.api.test.tools;
+
+import static com.oracle.truffle.api.test.tools.TestNodes.*;
+import static org.junit.Assert.*;
+
+import org.junit.*;
+
+import com.oracle.truffle.api.instrument.*;
+import com.oracle.truffle.api.nodes.*;
+import com.oracle.truffle.api.source.*;
+import com.oracle.truffle.api.tools.*;
+
+public class LineToProbesMapTest {
+
+    @Test
+    public void testToolCreatedTooLate() {
+        final RootNode expr13rootNode = createExpr13TestRootNode();
+        final Node addNode = expr13rootNode.getChildren().iterator().next();
+        final Probe probe = addNode.probe();
+        final LineLocation lineLocation = probe.getProbedSourceSection().getLineLocation();
+        assertEquals(lineLocation, expr13Line2);
+
+        final LineToProbesMap tool = new LineToProbesMap();
+        tool.install();
+
+        assertNull(tool.findFirstProbe(expr13Line1));
+        assertNull(tool.findFirstProbe(expr13Line2));
+        tool.dispose();
+    }
+
+    @Test
+    public void testToolInstalledTooLate() {
+        final LineToProbesMap tool = new LineToProbesMap();
+
+        final RootNode expr13rootNode = createExpr13TestRootNode();
+        final Node addNode = expr13rootNode.getChildren().iterator().next();
+        final Probe probe = addNode.probe();
+        final LineLocation lineLocation = probe.getProbedSourceSection().getLineLocation();
+        assertEquals(lineLocation, expr13Line2);
+
+        tool.install();
+
+        assertNull(tool.findFirstProbe(expr13Line1));
+        assertNull(tool.findFirstProbe(expr13Line2));
+        tool.dispose();
+    }
+
+    @Test
+    public void testMapping() {
+        final LineToProbesMap tool = new LineToProbesMap();
+        tool.install();
+
+        final RootNode expr13rootNode = createExpr13TestRootNode();
+        final Node addNode = expr13rootNode.getChildren().iterator().next();
+        final Probe probe = addNode.probe();
+        final LineLocation lineLocation = probe.getProbedSourceSection().getLineLocation();
+        assertEquals(lineLocation, expr13Line2);
+
+        assertNull(tool.findFirstProbe(expr13Line1));
+        assertEquals(tool.findFirstProbe(expr13Line2), probe);
+        tool.dispose();
+    }
+
+}