--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing5/bf_test4.scala	Thu Dec 06 21:49:43 2018 +0000
@@ -0,0 +1,8 @@
+
+assert(run("[-]", Map(0 -> 100)) == Map(0 -> 0))
+assert(run("[->+<]", Map(0 -> 10)) == Map(0 -> 0, 1 -> 10))
+assert(run("[>>+>>+<<<<-]", Map(0 -> 42)) == Map(0 -> 0, 2 -> 42, 4 -> 42))
+val hw_urban = """+++++[->++++++++++<]>--<+++[->>++++++++++
+                  <<]>>++<<----------[+>.>.<+<]"""
+assert(run(hw_urban) == Map(0 -> 0, 1 -> 58, 2 -> 32))
+