from __future__ import absolute_import, print_function 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") # we should pick up abbbc. rather than bc.de as the longest match showdiff("a\nb\nb\nb\nc\n.\nd\ne\n.\nf\n", "a\nb\nb\na\nb\nb\nb\nc\n.\nb\nc\n.\nd\ne\nf\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")