test-ranap failures

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Neels Hofmeyr nhofmeyr at sysmocom.de
Mon May 2 12:53:33 UTC 2016


Hi Harald & others,

just dropping a note on a recent test failure with some confusion included
concerning the osmo-iuh test-ranap.c test suite...  I fixed it in master's HEAD
95d0ba5, this mail is just in case anyone else hits this confusion.


from Harald's recent commits on osmo-iuh, I see two test failures.

The first that came to my attention is a missing free:

[[[
--- expout  2016-05-02 14:23:55.303083568 +0200
+++ /n/s/osmo/git/osmo-iuh/src/tests/testsuite.dir/at-groups/3/stdout 2016-05-02 14:23:55.311083487 +0200
@@ -213,6 +213,7 @@
 </RANAP_IE>
 00 0a 00 11 00 00 01 00 29 40 0a 00 00 01 00 28 40 03 05 c2 d0 
 report
-talloc report on 'asn1_context' (total      0 bytes in   1 blocks)
+talloc report on 'asn1_context' (total     40 bytes in   2 blocks)
+    constr_CHOICE.c:927            contains     40 bytes in   1 blocks (ref 0) 0x1c81690
 talloc report on 'msgb' (total      1 bytes in   1 blocks)
 exit
3. testsuite.at:18: 3. ranap (testsuite.at:18): FAILED (testsuite.at:21)
]]]


I found that it is introduced by 14da5411a4fbe05eccff5b4f0934d52773a3f97a
("test-ranap: Add test case about constrained integer range decode")
-- merely a missing free of the decoded RANAP_Cause_t*.


However, when warping back to that commit I also see an unexpected reversal of
the byte order of two bytes in six places, introduced in f764a15c2339d5b24f
("Add test case about RANAP MaxBitrate encoding") and later secretly fixed in
bb289e3b810683d ("RAB parameters: add Extended Max Bitrate") which is actually
my commit but now appears in master as authored by you. The failure looks like
this:

[[[
./testsuite.at:21: $abs_top_builddir/src/tests/test-ranap
--- expout  2016-05-02 14:24:18.018852893 +0200
+++ /n/s/osmo/git/osmo-iuh/src/tests/testsuite.dir/at-groups/3/stdout 2016-05-02 14:24:18.046852609 +0200
@@ -88,7 +88,7 @@
     <firstValue>
         38 02 D8 01 2F A7 20 2F A8 00 00 F4 4C 08 0A 02 
         80 00 51 40 00 27 20 28 14 00 67 40 00 00 22 28 
-        14 00 3C 40 00 00 00 50 3D 02 02 00 0D C0 35 00 
+        14 00 3C 40 00 00 00 50 3D 02 00 02 0D C0 35 00 
         01 0A 0B 0C 0D 40 00 00 00 01
     </firstValue>
     <secondCriticality><ignore/></secondCriticality>
@@ -101,11 +101,11 @@
         00 00 01 00 35 00 3A 38 02 D8 01 2F A7 20 2F A8 
         00 00 F4 4C 08 0A 02 80 00 51 40 00 27 20 28 14 
         00 67 40 00 00 22 28 14 00 3C 40 00 00 00 50 3D 
-        02 02 00 0D C0 35 00 01 0A 0B 0C 0D 40 00 00 00 
+        02 00 02 0D C0 35 00 01 0A 0B 0C 0D 40 00 00 00 
         01 40 01 00
     </value>
 </RANAP_IE>
-00 00 00 4b 00 00 01 00 36 40 44 00 00 01 00 35 00 3a 38 02 d8 01 2f a7 20 2f a8 00 00 f4 4c 08 0a 02 80 00 51 40 00 27 20 28 14 00 67 40 00 00 22 28 14 00 3c 40 00 00 00 50 3d 02 02 00 0d c0 35 00 01 0a 0b 0c 0d 40 00 00 00 01 40 01 00 
+00 00 00 4b 00 00 01 00 36 40 44 00 00 01 00 35 00 3a 38 02 d8 01 2f a7 20 2f a8 00 00 f4 4c 08 0a 02 80 00 51 40 00 27 20 28 14 00 67 40 00 00 22 28 14 00 3c 40 00 00 00 50 3d 02 00 02 0d c0 35 00 01 0a 0b 0c 0d 40 00 00 00 01 40 01 00 
 
 ==> RAB ASSIGNMENT COMMAND (DATA)
 <RANAP_ProtocolIE-FieldPair>
@@ -113,7 +113,7 @@
     <firstCriticality><reject/></firstCriticality>
     <firstValue>
         38 04 10 DE 18 69 FF 80 0C 34 FF 00 1F 40 08 06 
-        08 9E 00 04 00 1B 80 35 00 01 1A 1B 1C 1D 00 11 
+        08 9E 00 00 04 1B 80 35 00 01 1A 1B 1C 1D 00 11 
         22 33 44
     </firstValue>
     <secondCriticality><ignore/></secondCriticality>
@@ -124,12 +124,12 @@
     <criticality><ignore/></criticality>
     <value>
         00 00 01 00 35 00 23 38 04 10 DE 18 69 FF 80 0C 
-        34 FF 00 1F 40 08 06 08 9E 00 04 00 1B 80 35 00 
+        34 FF 00 1F 40 08 06 08 9E 00 00 04 1B 80 35 00 
         01 1A 1B 1C 1D 00 11 22 33 44 40 06 78 1C 00 00 
         00 00
     </value>
 </RANAP_IE>
-00 00 00 39 00 00 01 00 36 40 32 00 00 01 00 35 00 23 38 04 10 de 18 69 ff 80 0c 34 ff 00 1f 40 08 06 08 9e 00 04 00 1b 80 35 00 01 1a 1b 1c 1d 00 11 22 33 44 40 06 78 1c 00 00 00 00 
+00 00 00 39 00 00 01 00 36 40 32 00 00 01 00 35 00 23 38 04 10 de 18 69 ff 80 0c 34 ff 00 1f 40 08 06 08 9e 00 00 04 1b 80 35 00 01 1a 1b 1c 1d 00 11 22 33 44 40 06 78 1c 00 00 00 00 
 
 ==> RESET CMD
 <RANAP_IE>
3. testsuite.at:18: 3. ranap (testsuite.at:18): FAILED (testsuite.at:21)
]]]

I'm not sure how this reversal came to be in test-ranap.ok. All I know is it
works in master's HEAD, but not in 14da5411a4fbe05eccff5b4f0.

~Neels


-- 
- Neels Hofmeyr <nhofmeyr at sysmocom.de>          http://www.sysmocom.de/
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