Bisection debugging helper script

pydir/bisection-test.py

Index: pydir/bisection-test.py
diff --git a/pydir/bisection-test.py b/pydir/bisection-test.py
new file mode 100755
index 0000000000000000000000000000000000000000..549a114efbc7052fe9b0ff4d5781739e0a0ae2f5
--- /dev/null
+++ b/pydir/bisection-test.py
@@ -0,0 +1,59 @@
+#!/usr/bin/env python2
+import sys
+import argparse
+def main():
+  desc = 'Crash simulator script, useful for testing the bisection tool.\
+          bisection-tool.py --cmd \'./pydir/bisection-test.py -c 2x3\' \
+          --end 1000 --timeout 60'
+  argparser = argparse.ArgumentParser(description=desc)
+  argparser.add_argument('--include', '-i', default=[], dest='include',
+    action='append',
+    help='Include list, single values or ranges')
+  argparser.add_argument('--exclude', '-e', default=[], dest='exclude',
+    action='append',
+    help='Exclude list, single values or ranges')
+  argparser.add_argument('--crash', '-c', default=[], dest='crash',
+    action='append',
+    help='Crash list, single values or x-separated combinations like 2x4')

[John, 2016/07/20 14:50:08]

why x?

[manasijm, 2016/07/20 21:15:23]

Anything other than : would be fine, I guess.
Chose x to better communicate that it is a combination and not a range.

[John, 2016/07/20 22:23:05]

well, maybe ','? :)

+
+  args = argparser.parse_args()
+
+  included = {-1}
+  for string in args.include :
+    include_range = string.split(':')
+    if len(include_range) == 1:
+      included.add(int(include_range[0]))
+    else :
+      for num in range(int(include_range[0]), int(include_range[1])):
+        included.add(num)
+
+  for string in args.exclude :
+    exclude_range = string.split(':')
+    if len(exclude_range) == 1:
+      try:
+        included.remove(int(exclude_range[0]))
+      except KeyError:
+        pass # Exclude works without a matching include
+    else :
+      for num in range(int(exclude_range[0]), int(exclude_range[1])):
+        excluded.add(num)

[John, 2016/07/20 14:50:08]

It seems you're not using excluded for anything.

[manasijm, 2016/07/20 21:15:23]

Right, it should be included.remove(num)

+
+  for string in args.crash:
+    crash_combination = string.split('x')
+    if len(crash_combination) == 1:

[John, 2016/07/20 14:50:08]

no need to special case here, right?

[manasijm, 2016/07/20 21:15:24]

Done.

+      if int(crash_combination[0]) in included:
+        print "Fail"
+        exit(1)
+    else :
+      fail = True
+      for crash in crash_combination:
+        if not int(crash) in included:
+          fail = False
+      if fail:
+        print "Fail"
+        exit(1)
+  print "Success"
+  exit(0)
+
+if __name__ == '__main__':
+    main()