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#!/usr/bin/env python
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import sys, struct
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from mercurial import bdiff, mpatch
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def test1(a, b):
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d = bdiff.bdiff(a, b)
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c = a
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if d:
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c = mpatch.patches(a, [d])
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if c != b:
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print "***", repr(a), repr(b)
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print "bad:"
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print repr(c)[:200]
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print repr(d)
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def test(a, b):
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print "***", repr(a), repr(b)
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test1(a, b)
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test1(b, a)
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test("a\nc\n\n\n\n", "a\nb\n\n\n")
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test("a\nb\nc\n", "a\nc\n")
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test("", "")
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test("a\nb\nc", "a\nb\nc")
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test("a\nb\nc\nd\n", "a\nd\n")
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test("a\nb\nc\nd\n", "a\nc\ne\n")
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test("a\nb\nc\n", "a\nc\n")
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test("a\n", "c\na\nb\n")
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test("a\n", "")
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test("a\n", "b\nc\n")
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test("a\n", "c\na\n")
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test("", "adjfkjdjksdhfksj")
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test("", "ab")
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test("", "abc")
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test("a", "a")
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test("ab", "ab")
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test("abc", "abc")
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test("a\n", "a\n")
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test("a\nb", "a\nb")
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#issue1295
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def showdiff(a, b):
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bin = bdiff.bdiff(a, b)
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pos = 0
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while pos < len(bin):
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p1, p2, l = struct.unpack(">lll", bin[pos:pos + 12])
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pos += 12
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print p1, p2, repr(bin[pos:pos + l])
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pos += l
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showdiff("x\n\nx\n\nx\n\nx\n\nz\n", "x\n\nx\n\ny\n\nx\n\nx\n\nz\n")
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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")
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print "done"
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