luatest.patch

diff --git a/luatest/assertions.lua b/luatest/assertions.lua
index 6902133..cbe8da3 100644
--- a/luatest/assertions.lua
+++ b/luatest/assertions.lua
@@ -46,6 +46,31 @@ if math.abs(1.1 - 1 - 0.1) > M.EPS then
     M.EPS = 2^-23 -- = machine epsilon for "float", ~1.19E-07
 end
 
+local function check_luatest_auto(actualMsg, expectedMsg, depth)
+    if string.endswith(expectedMsg, '"auto"') then
+        local fio = require('fio')
+        local flags = {'O_RDWR', 'O_APPEND', 'O_CREAT', 'O_TRUNC'}
+        local mode = tonumber('644',8)
+        local tmpstr = actualMsg
+        for k=1,8 do
+            tmpstr = string.gsub(tmpstr, "\n ", "\n")
+            tmpstr = string.gsub(tmpstr, "\n\t", "\n")
+        end
+        tmpstr = string.gsub(tmpstr, "\n", " ")
+        tmpstr = string.gsub(tmpstr, "}, }", "} }")
+        tmpstr = string.strip(tmpstr)
+        if tmpstr:startswith("[") and tmpstr:endswith("]") then
+            tmpstr = "{" .. tmpstr:sub(2, #tmpstr - 1) .. "}"
+        end
+
+        local f = fio.open('/tmp/luatest_auto.txt', flags, mode)
+        local info = debug.getinfo(depth+3)
+        f:write(info.source .. ':' .. tostring(info.currentline) .. '\n')
+        f:write(tmpstr)
+        f:close()
+    end
+end
+
 local function failure(msg, extra_msg, level)
     -- raise an error indicating a test failure
     -- for error() compatibility we adjust "level" here (by +1), to report the
@@ -178,6 +203,8 @@ end
 -- @bool[opt] deep_analysis print diff.
 function M.assert_equals(actual, expected, message, deep_analysis)
     if not comparator.equals(actual, expected) then
+        local strExpected, strActual = prettystr_pairs(expected, actual)
+        check_luatest_auto(strActual, strExpected, 0)
         failure(M.private.error_msg_equality(actual, expected, deep_analysis), message, 2)
     end
 end
@@ -497,6 +524,7 @@ local function _assert_error_msg_equals(stripFileAndLine, expectedMsg, func, ...
 
     if differ then
         error_msg, expectedMsg = prettystr_pairs(error_msg, expectedMsg)
+        check_luatest_auto(error_msg, expectedMsg, 1)
         fail_fmt(3, nil, 'Error message expected: %s\nError message received: %s\n',
                  expectedMsg, error_msg)
     end
diff --git a/luatest/helpers.lua b/luatest/helpers.lua
index ea9bfc0..d72c5fc 100644
--- a/luatest/helpers.lua
+++ b/luatest/helpers.lua
@@ -60,6 +60,7 @@ helpers.RETRYING_DELAY = 0.1
 function helpers.retrying(config, fn, ...)
     local timeout = config.timeout or helpers.RETRYING_TIMEOUT
+    timeout = timeout / 5
     local delay = config.delay or helpers.RETRYING_DELAY
     local started_at = clock.time()
     while true do
         local ok, result = pcall(fn, ...)