test_util: add known-answer tests for hashutil tags

diff --git a/src/allmydata/test/test_util.py b/src/allmydata/test/test_util.py
index ac75acfb30bd970f1a550dd506e07c2490e2501e..1aef24edcb5625ec3227d2d617babc9c47eaf1af 100644 (file)
--- a/src/allmydata/test/test_util.py
+++ b/src/allmydata/test/test_util.py
@@ -607,6 +607,38 @@ class HashUtilTests(unittest.TestCase):
         self.failIf(hashutil.constant_time_compare("a", "b"))
         self.failIf(hashutil.constant_time_compare("a", "aa"))
 
+    def _testknown(self, hashf, expected_a, *args):
+        got = hashf(*args)
+        got_a = base32.b2a(got)
+        self.failUnlessEqual(got_a, expected_a)
+
+    def test_known_answers(self):
+        # assert backwards compatibility
+        self._testknown(hashutil.storage_index_hash, "qb5igbhcc5esa6lwqorsy7e6am", "")
+        self._testknown(hashutil.block_hash, "msjr5bh4evuh7fa3zw7uovixfbvlnstr5b65mrerwfnvjxig2jvq", "")
+        self._testknown(hashutil.uri_extension_hash, "wthsu45q7zewac2mnivoaa4ulh5xvbzdmsbuyztq2a5fzxdrnkka", "")
+        self._testknown(hashutil.plaintext_hash, "5lz5hwz3qj3af7n6e3arblw7xzutvnd3p3fjsngqjcb7utf3x3da", "")
+        self._testknown(hashutil.crypttext_hash, "itdj6e4njtkoiavlrmxkvpreosscssklunhwtvxn6ggho4rkqwga", "")
+        self._testknown(hashutil.crypttext_segment_hash, "aovy5aa7jej6ym5ikgwyoi4pxawnoj3wtaludjz7e2nb5xijb7aa", "")
+        self._testknown(hashutil.plaintext_segment_hash, "4fdgf6qruaisyukhqcmoth4t3li6bkolbxvjy4awwcpprdtva7za", "")
+        self._testknown(hashutil.convergence_hash, "3mo6ni7xweplycin6nowynw2we", 3, 10, 100, "", "converge")
+        self._testknown(hashutil.my_renewal_secret_hash, "ujhr5k5f7ypkp67jkpx6jl4p47pyta7hu5m527cpcgvkafsefm6q", "")
+        self._testknown(hashutil.my_cancel_secret_hash, "rjwzmafe2duixvqy6h47f5wfrokdziry6zhx4smew4cj6iocsfaa", "")
+        self._testknown(hashutil.file_renewal_secret_hash, "hzshk2kf33gzbd5n3a6eszkf6q6o6kixmnag25pniusyaulqjnia", "", "si")
+        self._testknown(hashutil.file_cancel_secret_hash, "bfciwvr6w7wcavsngxzxsxxaszj72dej54n4tu2idzp6b74g255q", "", "si")
+        self._testknown(hashutil.bucket_renewal_secret_hash, "e7imrzgzaoashsncacvy3oysdd2m5yvtooo4gmj4mjlopsazmvuq", "", "\x00"*20)
+        self._testknown(hashutil.bucket_cancel_secret_hash, "dvdujeyxeirj6uux6g7xcf4lvesk632aulwkzjar7srildvtqwma", "", "\x00"*20)
+        self._testknown(hashutil.hmac, "c54ypfi6pevb3nvo6ba42jtglpkry2kbdopqsi7dgrm4r7tw5sra", "tag", "")
+        self._testknown(hashutil.mutable_rwcap_key_hash, "6rvn2iqrghii5n4jbbwwqqsnqu", "iv", "wk")
+        self._testknown(hashutil.ssk_writekey_hash, "ykpgmdbpgbb6yqz5oluw2q26ye", "")
+        self._testknown(hashutil.ssk_write_enabler_master_hash, "izbfbfkoait4dummruol3gy2bnixrrrslgye6ycmkuyujnenzpia", "")
+        self._testknown(hashutil.ssk_write_enabler_hash, "fuu2dvx7g6gqu5x22vfhtyed7p4pd47y5hgxbqzgrlyvxoev62tq", "wk", "\x00"*20)
+        self._testknown(hashutil.ssk_pubkey_fingerprint_hash, "3opzw4hhm2sgncjx224qmt5ipqgagn7h5zivnfzqycvgqgmgz35q", "")
+        self._testknown(hashutil.ssk_readkey_hash, "vugid4as6qbqgeq2xczvvcedai", "")
+        self._testknown(hashutil.ssk_readkey_data_hash, "73wsaldnvdzqaf7v4pzbr2ae5a", "iv", "rk")
+        self._testknown(hashutil.ssk_storage_index_hash, "j7icz6kigb6hxrej3tv4z7ayym", "")
+
+
 class Abbreviate(unittest.TestCase):
     def test_time(self):
         a = abbreviate.abbreviate_time