[PATCH v2] tests: account for varying-size cryptographic signatures

[Daniel Kahn Gillmor <dkg@fifthhorseman.net>]

GnuPG 2.1.16 is now injecting the full issuer fingerprint in its
signatures, which makes them about 32 octets larger when
ascii-armored.

This change in size means that the size of the MIME parts will vary
depending on the version of gpg that the user has installed.  at any
rate, the signature part should be non-zero (this is true for
basically any MIME part), so we just test for that instead of an exact
size.
---
 test/T350-crypto.sh | 22 ++++++++++------------
 test/T355-smime.sh  |  2 +-
 test/test-lib.sh    |  3 ++-
 3 files changed, 13 insertions(+), 14 deletions(-)

diff --git a/test/T350-crypto.sh b/test/T350-crypto.sh
index df2dc74..a1e5e20 100755
--- a/test/T350-crypto.sh
+++ b/test/T350-crypto.sh
@@ -59,7 +59,7 @@ expected='[[[{"id": "XXXXX",
  "content": "This is a test signed message.\n"},
  {"id": 3,
  "content-type": "application/pgp-signature",
- "content-length": 280}]}]},
+ "content-length": "NONZERO"}]}]},
  []]]]'
 test_expect_equal_json \
     "$output" \
@@ -94,7 +94,7 @@ expected='[[[{"id": "XXXXX",
  "content": "This is a test signed message.\n"},
  {"id": 3,
  "content-type": "application/pgp-signature",
- "content-length": 280}]}]},
+ "content-length": "NONZERO"}]}]},
  []]]]'
 test_expect_equal_json \
     "$output" \
@@ -127,7 +127,7 @@ expected='[[[{"id": "XXXXX",
  "content": "This is a test signed message.\n"},
  {"id": 3,
  "content-type": "application/pgp-signature",
- "content-length": 280}]}]},
+ "content-length": "NONZERO"}]}]},
  []]]]'
 test_expect_equal_json \
     "$output" \
@@ -197,7 +197,7 @@ expected='[[[{"id": "XXXXX",
  "content-type": "multipart/encrypted",
  "content": [{"id": 2,
  "content-type": "application/pgp-encrypted",
- "content-length": 11},
+ "content-length": "NONZERO"},
  {"id": 3,
  "content-type": "multipart/mixed",
  "content": [{"id": 4,
@@ -205,7 +205,7 @@ expected='[[[{"id": "XXXXX",
  "content": "This is a test encrypted message.\n"},
  {"id": 5,
  "content-type": "application/octet-stream",
- "content-length": 28,
+ "content-length": "NONZERO",
  "content-transfer-encoding": "base64",
  "filename": "TESTATTACHMENT"}]}]}]},
  []]]]'
@@ -234,11 +234,9 @@ test_expect_equal_file OUTPUT TESTATTACHMENT
 
 test_begin_subtest "decryption failure with missing key"
 mv "${GNUPGHOME}"{,.bak}
-# The length of the encrypted attachment varies so must be normalized.
 output=$(notmuch show --format=json --decrypt subject:"test encrypted message 001" \
     | notmuch_json_show_sanitize \
-    | sed -e 's|"created": [1234567890]*|"created": 946728000|' \
-    | sed -e 's|"content-length": 6[1234567890]*|"content-length": 652|')
+    | sed -e 's|"created": [1234567890]*|"created": 946728000|')
 expected='[[[{"id": "XXXXX",
  "match": true,
  "excluded": false,
@@ -255,10 +253,10 @@ expected='[[[{"id": "XXXXX",
  "content-type": "multipart/encrypted",
  "content": [{"id": 2,
  "content-type": "application/pgp-encrypted",
- "content-length": 11},
+ "content-length": "NONZERO"},
  {"id": 3,
  "content-type": "application/octet-stream",
- "content-length": 652}]}]},
+ "content-length": "NONZERO"}]}]},
  []]]]'
 test_expect_equal_json \
     "$output" \
@@ -295,7 +293,7 @@ expected='[[[{"id": "XXXXX",
  "content-type": "multipart/encrypted",
  "content": [{"id": 2,
  "content-type": "application/pgp-encrypted",
- "content-length": 11},
+ "content-length": "NONZERO"},
  {"id": 3,
  "content-type": "text/plain",
  "content": "This is another test encrypted message.\n"}]}]},
@@ -370,7 +368,7 @@ expected='[[[{"id": "XXXXX",
  "content": "This is a test signed message.\n"},
  {"id": 3,
  "content-type": "application/pgp-signature",
- "content-length": 280}]}]},
+ "content-length": "NONZERO"}]}]},
  []]]]'
 test_expect_equal_json \
     "$output" \
diff --git a/test/T355-smime.sh b/test/T355-smime.sh
index d942412..a8be45e 100755
--- a/test/T355-smime.sh
+++ b/test/T355-smime.sh
@@ -69,7 +69,7 @@ expected='[[[{"id": "XXXXX",
  "content-type": "text/plain",
  "content": "This is a test signed message.\n"},
  {"id": 3,
-  "content-length": 1922,
+  "content-length": "NONZERO",
   "content-transfer-encoding": "base64",
   "content-type": "application/x-pkcs7-signature",
   "filename": "smime.p7s"}]}]},
diff --git a/test/test-lib.sh b/test/test-lib.sh
index a12c6d0..f55d2c6 100644
--- a/test/test-lib.sh
+++ b/test/test-lib.sh
@@ -736,7 +736,8 @@ notmuch_json_show_sanitize ()
 	-e 's|"Date": "Fri, 05 Jan 2001 [^"]*0000"|"Date": "GENERATED_DATE"|g' \
 	-e 's|"filename": "signature.asc",||g' \
 	-e 's|"filename": "/[^"]*",|"filename": "YYYYY",|g' \
-	-e 's|"timestamp": 97.......|"timestamp": 42|g'
+	-e 's|"timestamp": 97.......|"timestamp": 42|g' \
+        -e 's|"content-length": [1-9][0-9]*|"content-length": "NONZERO"|g'
 }
 
 notmuch_emacs_error_sanitize ()
-- 
2.10.2