add test cases for removeBridge, removeTip and mergeBubble
diff --git a/genomix/genomix-pregelix/data/bubble_remove/txt/bubble b/genomix/genomix-pregelix/data/bubble_remove/txt/bubble
new file mode 100755
index 0000000..d250792
--- /dev/null
+++ b/genomix/genomix-pregelix/data/bubble_remove/txt/bubble
@@ -0,0 +1,6 @@
+(1,5)([] [] [] [(1,4)] GAAC)
+(2,1)([(1,4)] [] [] [(1,2)] TAG)
+(1,1)([(1,2)] [] [] [] AAT)
+(1,2)([(1,3),(2,1)] [] [] [(1,1)] ATA)
+(1,4)([(1,5)] [] [] [(1,3),(2,1)] AGA)
+(1,3)([(1,4)] [] [] [(1,2)] TAG)