upstream/mercurial-mirror Files · tests/test-lrucachedict.py

tryimportone: use dirstateguard instead of beginparentchange/endparentchange...

tryimportone: use dirstateguard instead of beginparentchange/endparentchange To fix the issue that the recent (in memory) dirstate isn't visible to external process (e.g. "precommit" hook), a subsequent patch makes "localrepository.commit()" invoke "dirstate.write()" in it. This change will make "beginparentchange()" and "endparentchange()" on dirstate in "cmdutil.tryimportone()" meaningless, because: - "dirstate.write()" writes changed data into ".hg/dirstate", but - aborting between "beginparentchange()" and "endparentchange()" doesn't cause any restoring ".hg/dirstate" it just discards changes in memory. This patch uses "dirstateguard" instead of "beginparentchange()" and "endparentchange()" in "cmdutil.tryimportone()" to restore ".hg/dirstate" during a failure even if "dirstate.write()" is executed before a failure. This patch uses "lockmod.release(dsguard)" instead of "dsguard.release()", because processing may be aborted before assignment to "dsguard" , and the "if dsguard" examination for safety is redundant.

Siddharth Agarwal - - Load All Authors

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      from mercurial import util

      def printifpresent(d, xs):

          for x in xs:

              present = x in d

              print "'%s' in d: %s" % (x, present)

              if present:

                  print "d['%s']: %s" % (x, d[x])

      def test_lrucachedict():

          d = util.lrucachedict(4)

          d['a'] = 'va'

          d['b'] = 'vb'

          d['c'] = 'vc'

          d['d'] = 'vd'

          # all of these should be present

          printifpresent(d, ['a', 'b', 'c', 'd'])

          # 'a' should be dropped because it was least recently used

          d['e'] = 've'

          printifpresent(d, ['a', 'b', 'c', 'd', 'e'])

          # touch entries in some order (get or set).

          d['e']

          d['c'] = 'vc2'

          d['d']

          d['b'] = 'vb2'

          # 'e' should be dropped now

          d['f'] = 'vf'

          printifpresent(d, ['b', 'c', 'd', 'e', 'f'])

          d.clear()

          printifpresent(d, ['b', 'c', 'd', 'e', 'f'])

      if __name__ == '__main__':

          test_lrucachedict()

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				from mercurial import util

				def printifpresent(d, xs):
				for x in xs:
				present = x in d
				print "'%s' in d: %s" % (x, present)
				if present:
				print "d['%s']: %s" % (x, d[x])

				def test_lrucachedict():
				d = util.lrucachedict(4)
				d['a'] = 'va'
				d['b'] = 'vb'
				d['c'] = 'vc'
				d['d'] = 'vd'

				# all of these should be present
				printifpresent(d, ['a', 'b', 'c', 'd'])

				# 'a' should be dropped because it was least recently used
				d['e'] = 've'
				printifpresent(d, ['a', 'b', 'c', 'd', 'e'])

				# touch entries in some order (get or set).
				d['e']
				d['c'] = 'vc2'
				d['d']
				d['b'] = 'vb2'

				# 'e' should be dropped now
				d['f'] = 'vf'
				printifpresent(d, ['b', 'c', 'd', 'e', 'f'])

				d.clear()
				printifpresent(d, ['b', 'c', 'd', 'e', 'f'])

				if __name__ == '__main__':
				test_lrucachedict()