[tarantool-patches] [PATCH] test: skip test backtrace if no libunwind support

[Sergei Voronezhskii]

Fixes: #3824
---
BASE: 1.10-features
BUILD: https://travis-ci.org/tarantool/tarantool/builds/458722725
BRANCH: https://github.com/tarantool/tarantool/tree/sergw/fix-fiber-test-if-no-libunwind
 test/app/fiber.result   | 4 +++-
 test/app/fiber.test.lua | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/test/app/fiber.result b/test/app/fiber.result
index 59aa8d5c6..79f6642f2 100644
--- a/test/app/fiber.result
+++ b/test/app/fiber.result
@@ -864,7 +864,9 @@ f1 = fiber.create(sf3)
 info = fiber.info()
 ---
 ...
-backtrace = info[f1:id()].backtrace
+-- if compibled without libunwind support, need to return mock object here
+-- to skip this test, see #3824
+backtrace = info[f1:id()].backtrace or {{L = 'sf1'}, {L = 'loop'}, {L = 'sf3'}}
 ---
 ...
 bt_str = ''
diff --git a/test/app/fiber.test.lua b/test/app/fiber.test.lua
index b9d82ef05..e3165edaf 100644
--- a/test/app/fiber.test.lua
+++ b/test/app/fiber.test.lua
@@ -340,7 +340,9 @@ function sf3() sf2() end
 f1 = fiber.create(sf3)
 
 info = fiber.info()
-backtrace = info[f1:id()].backtrace
+-- if compibled without libunwind support, need to return mock object here
+-- to skip this test, see #3824
+backtrace = info[f1:id()].backtrace or {{L = 'sf1'}, {L = 'loop'}, {L = 'sf3'}}
 bt_str = ''
 for _, b in pairs(backtrace) do bt_str = bt_str .. (b['L'] or '') end
 bt_str:find('sf1') ~= nil
-- 
2.18.0