Add tests on SegmentRouting - SRBridging (+ fix some bugs)

Change-Id: I8aa7dfedb65c5c508881c7ef7bf68b37c1764e54
diff --git a/TestON/tests/USECASE/SegmentRouting/dependencies/json/CASE24.chart b/TestON/tests/USECASE/SegmentRouting/dependencies/json/CASE24.chart
new file mode 100644
index 0000000..0102621
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/dependencies/json/CASE24.chart
@@ -0,0 +1,6 @@
+{
+  "leaf1": {"expect": "True",
+    "hosts":["h1", "h2"]},
+  "leaf2": {"expect": "True",
+    "hosts":["h3", "h4"]}
+}
\ No newline at end of file