--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/test-bdiff.py Sun May 17 01:39:31 2009 +0200
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+
+import sys, 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"