1 files changed, 20 insertions, 0 deletions
diff --git a/catapult/telemetry/telemetry/timeline/bounds_unittest.py b/catapult/telemetry/telemetry/timeline/bounds_unittest.py
new file mode 100644
index 00000000..0b061241
--- /dev/null
+++ b/catapult/telemetry/telemetry/timeline/bounds_unittest.py
@@ -0,0 +1,20 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+import unittest
+
+from telemetry.timeline import bounds
+
+
+class BoundsTests(unittest.TestCase):
+
+  def testGetOverlap(self):
+    # Non overlap cases.
+    self.assertEquals(0, bounds.Bounds.GetOverlap(10, 20, 30, 40))
+    self.assertEquals(0, bounds.Bounds.GetOverlap(30, 40, 10, 20))
+    # Overlap cases.
+    self.assertEquals(10, bounds.Bounds.GetOverlap(10, 30, 20, 40))
+    self.assertEquals(10, bounds.Bounds.GetOverlap(20, 40, 10, 30))
+    # Inclusive cases.
+    self.assertEquals(10, bounds.Bounds.GetOverlap(10, 40, 20, 30))
+    self.assertEquals(10, bounds.Bounds.GetOverlap(20, 30, 10, 40))