add test suite case for removetip/removebridge/pathmerge
diff --git a/genomix/genomix-pregelix/src/test/resources/only_pathmerge.txt b/genomix/genomix-pregelix/src/test/resources/only_pathmerge.txt
new file mode 100644
index 0000000..3d007d2
--- /dev/null
+++ b/genomix/genomix-pregelix/src/test/resources/only_pathmerge.txt
@@ -0,0 +1 @@
+P4ForMergeGraph.xml