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

help: scripting help topic...

help: scripting help topic There are a lot of non-human consumers of Mercurial. And the challenges and considerations for machines consuming Mercurial is significantly different from what humans face. I think there are enough special considerations around how machines consume Mercurial that a dedicated help topic is warranted. I concede the audience for this topic is probably small compared to the general audience. However, lots of normal Mercurial users do things like create one-off shell scripts for common workflows that I think this is useful enough to be in the install (as opposed to, say, a wiki page - which most users will likely never find). This text is by no means perfect. But you have to start somewhere. I think I did cover the important parts, though.

Patrick Mezard - - Load All Authors

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      import struct

      from mercurial import bdiff, mpatch

      def test1(a, b):

          d = bdiff.bdiff(a, b)

          c = a

          if d:

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

          if c != b:

              print "***", repr(a), repr(b)

              print "bad:"

              print repr(c)[:200]

              print repr(d)

      def test(a, b):

          print "***", repr(a), repr(b)

          test1(a, b)

          test1(b, a)

      test("a\nc\n\n\n\n", "a\nb\n\n\n")

      test("a\nb\nc\n", "a\nc\n")

      test("", "")

      test("a\nb\nc", "a\nb\nc")

      test("a\nb\nc\nd\n", "a\nd\n")

      test("a\nb\nc\nd\n", "a\nc\ne\n")

      test("a\nb\nc\n", "a\nc\n")

      test("a\n", "c\na\nb\n")

      test("a\n", "")

      test("a\n", "b\nc\n")

      test("a\n", "c\na\n")

      test("", "adjfkjdjksdhfksj")

      test("", "ab")

      test("", "abc")

      test("a", "a")

      test("ab", "ab")

      test("abc", "abc")

      test("a\n", "a\n")

      test("a\nb", "a\nb")

      #issue1295

      def showdiff(a, b):

          bin = bdiff.bdiff(a, b)

          pos = 0

          while pos < len(bin):

              p1, p2, l = struct.unpack(">lll", bin[pos:pos + 12])

              pos += 12

              print p1, p2, repr(bin[pos:pos + l])

              pos += l

      showdiff("x\n\nx\n\nx\n\nx\n\nz\n", "x\n\nx\n\ny\n\nx\n\nx\n\nz\n")

      showdiff("x\n\nx\n\nx\n\nx\n\nz\n", "x\n\nx\n\ny\n\nx\n\ny\n\nx\n\nz\n")

      print "done"

      def testfixws(a, b, allws):

          c = bdiff.fixws(a, allws)

          if c != b:

              print "*** fixws", repr(a), repr(b), allws

              print "got:"

              print repr(c)

      testfixws(" \ta\r b\t\n", "ab\n", 1)

      testfixws(" \ta\r b\t\n", " a b\n", 0)

      testfixws("", "", 1)

      testfixws("", "", 0)

      print "done"

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				import struct
				from mercurial import bdiff, mpatch

				def test1(a, b):
				d = bdiff.bdiff(a, b)
				c = a
				if d:
				c = mpatch.patches(a, [d])
				if c != b:
				print "***", repr(a), repr(b)
				print "bad:"
				print repr(c)[:200]
				print repr(d)

				def test(a, b):
				print "***", repr(a), repr(b)
				test1(a, b)
				test1(b, a)

				test("a\nc\n\n\n\n", "a\nb\n\n\n")
				test("a\nb\nc\n", "a\nc\n")
				test("", "")
				test("a\nb\nc", "a\nb\nc")
				test("a\nb\nc\nd\n", "a\nd\n")
				test("a\nb\nc\nd\n", "a\nc\ne\n")
				test("a\nb\nc\n", "a\nc\n")
				test("a\n", "c\na\nb\n")
				test("a\n", "")
				test("a\n", "b\nc\n")
				test("a\n", "c\na\n")
				test("", "adjfkjdjksdhfksj")
				test("", "ab")
				test("", "abc")
				test("a", "a")
				test("ab", "ab")
				test("abc", "abc")
				test("a\n", "a\n")
				test("a\nb", "a\nb")

				#issue1295
				def showdiff(a, b):
				bin = bdiff.bdiff(a, b)
				pos = 0
				while pos < len(bin):
				p1, p2, l = struct.unpack(">lll", bin[pos:pos + 12])
				pos += 12
				print p1, p2, repr(bin[pos:pos + l])
				pos += l
				showdiff("x\n\nx\n\nx\n\nx\n\nz\n", "x\n\nx\n\ny\n\nx\n\nx\n\nz\n")
				showdiff("x\n\nx\n\nx\n\nx\n\nz\n", "x\n\nx\n\ny\n\nx\n\ny\n\nx\n\nz\n")

				print "done"

				def testfixws(a, b, allws):
				c = bdiff.fixws(a, allws)
				if c != b:
				print "*** fixws", repr(a), repr(b), allws
				print "got:"
				print repr(c)

				testfixws(" \ta\r b\t\n", "ab\n", 1)
				testfixws(" \ta\r b\t\n", " a b\n", 0)
				testfixws("", "", 1)
				testfixws("", "", 0)

				print "done"