1 #!/usr/bin/env python

     2 

     3 import sys, struct

     4 from mercurial import bdiff, mpatch

     5 

     6 def test1(a, b):

     7     d = bdiff.bdiff(a, b)

     8     c = a

     9     if d:

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

    11     if c != b:

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

    13         print "bad:"

    14         print repr(c)[:200]

    15         print repr(d)

    16 

    17 def test(a, b):

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

    19     test1(a, b)

    20     test1(b, a)

    21 

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

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

    24 test("", "")

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

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

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

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

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

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

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

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

    33 test("", "adjfkjdjksdhfksj")

    34 test("", "ab")

    35 test("", "abc")

    36 test("a", "a")

    37 test("ab", "ab")

    38 test("abc", "abc")

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

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

    41 

    42 #issue1295

    43 def showdiff(a, b):

    44     bin = bdiff.bdiff(a, b)

    45     pos = 0

    46     while pos < len(bin):

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

    48         pos += 12

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

    50         pos += l

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

    52 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")

    53 

    54 print "done"