upstream/mercurial-mirror Files · contrib/bdiff-torture.py

narrow: don't hexify paths and double-hexify known nodes on wire (BC)...

narrow: don't hexify paths and double-hexify known nodes on wire (BC) It isn't obvious, but wireprototypes.encodelist() is meant only for binary nodeids. So when we used it for encoding hex nodeids and paths, the encoded result was surprising and hard to read. This patch changes the encoding to make the list of paths a comma-separated list and the list of common nodes to be a encodelist()-encoded list of binary nodeids (so the result is just singly-hexified nodeids). This is clearly a breaking change, but the feature is experimental and we're not aware of anyone running a server using this command yet. Differential Revision: https://phab.mercurial-scm.org/D6851

Pulkit Goyal - - Load All Authors

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      # Randomized torture test generation for bdiff

      from __future__ import absolute_import, print_function

      import random

      import sys

      from mercurial import (

          mdiff,

      )

      def reducetest(a, b):

          tries = 0

          reductions = 0

          print("reducing...")

          while tries < 1000:

              a2 = "\n".join(l for l in a.splitlines()

                             if random.randint(0, 100) > 0) + "\n"

              b2 = "\n".join(l for l in b.splitlines()

                             if random.randint(0, 100) > 0) + "\n"

              if a2 == a and b2 == b:

                  continue

              if a2 == b2:

                  continue

              tries += 1

              try:

                  test1(a, b)

              except Exception:

                  reductions += 1

                  tries = 0

                  a = a2

                  b = b2

          print("reduced:", reductions, len(a) + len(b),

                repr(a), repr(b))

          try:

              test1(a, b)

          except Exception as inst:

              print("failed:", inst)

          sys.exit(0)

      def test1(a, b):

          d = mdiff.textdiff(a, b)

          if not d:

              raise ValueError("empty")

          c = mdiff.patches(a, [d])

          if c != b:

              raise ValueError("bad")

      def testwrap(a, b):

          try:

              test1(a, b)

              return

          except Exception as inst:

              print("exception:", inst)

          reducetest(a, b)

      def test(a, b):

          testwrap(a, b)

          testwrap(b, a)

      def rndtest(size, noise):

          a = []

          src = "                aaaaaaaabbbbccd"

          for x in xrange(size):

              a.append(src[random.randint(0, len(src) - 1)])

          while True:

              b = [c for c in a if random.randint(0, 99) > noise]

              b2 = []

              for c in b:

                  b2.append(c)

                  while random.randint(0, 99) < noise:

                      b2.append(src[random.randint(0, len(src) - 1)])

              if b2 != a:

                  break

          a = "\n".join(a) + "\n"

          b = "\n".join(b2) + "\n"

          test(a, b)

      maxvol = 10000

      startsize = 2

      while True:

          size = startsize

          count = 0

          while size < maxvol:

              print(size)

              volume = 0

              while volume < maxvol:

                  rndtest(size, 2)

                  volume += size

                  count += 2

              size *= 2

          maxvol *= 4

          startsize *= 4

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				# Randomized torture test generation for bdiff

				from __future__ import absolute_import, print_function
				import random
				import sys

				from mercurial import (
				mdiff,
				)

				def reducetest(a, b):
				tries = 0
				reductions = 0
				print("reducing...")
				while tries < 1000:
				a2 = "\n".join(l for l in a.splitlines()
				if random.randint(0, 100) > 0) + "\n"
				b2 = "\n".join(l for l in b.splitlines()
				if random.randint(0, 100) > 0) + "\n"
				if a2 == a and b2 == b:
				continue
				if a2 == b2:
				continue
				tries += 1

				try:
				test1(a, b)
				except Exception:
				reductions += 1
				tries = 0
				a = a2
				b = b2

				print("reduced:", reductions, len(a) + len(b),
				repr(a), repr(b))
				try:
				test1(a, b)
				except Exception as inst:
				print("failed:", inst)

				sys.exit(0)

				def test1(a, b):
				d = mdiff.textdiff(a, b)
				if not d:
				raise ValueError("empty")
				c = mdiff.patches(a, [d])
				if c != b:
				raise ValueError("bad")

				def testwrap(a, b):
				try:
				test1(a, b)
				return
				except Exception as inst:
				print("exception:", inst)
				reducetest(a, b)

				def test(a, b):
				testwrap(a, b)
				testwrap(b, a)

				def rndtest(size, noise):
				a = []
				src = " aaaaaaaabbbbccd"
				for x in xrange(size):
				a.append(src[random.randint(0, len(src) - 1)])

				while True:
				b = [c for c in a if random.randint(0, 99) > noise]
				b2 = []
				for c in b:
				b2.append(c)
				while random.randint(0, 99) < noise:
				b2.append(src[random.randint(0, len(src) - 1)])
				if b2 != a:
				break

				a = "\n".join(a) + "\n"
				b = "\n".join(b2) + "\n"

				test(a, b)

				maxvol = 10000
				startsize = 2
				while True:
				size = startsize
				count = 0
				while size < maxvol:
				print(size)
				volume = 0
				while volume < maxvol:
				rndtest(size, 2)
				volume += size
				count += 2
				size *= 2
				maxvol *= 4
				startsize *= 4