diff --git a/test/app/boolean.result b/test/app/boolean.result
deleted file mode 100644
index bb101b641b9bd8575e3f9813b83abaa7bb616890..0000000000000000000000000000000000000000
--- a/test/app/boolean.result
+++ /dev/null
@@ -1,2 +0,0 @@
-true
-true
diff --git a/test/app/boolean.test.lua b/test/app/boolean.test.lua
deleted file mode 100755
index 04a8f3811c4852ce962f01dc2708bc65d5a3d6c3..0000000000000000000000000000000000000000
--- a/test/app/boolean.test.lua
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/usr/bin/env tarantool
-
---
--- Check that Tarantool creates configuration accepts boolean values
--- 
-box.cfg{logger_nonblock=true,
-    panic_on_wal_error=true,
-    slab_alloc_arena=0.1,
-    logger="tarantool.log"
-}
-print(box.cfg.logger_nonblock)
-print(box.cfg.panic_on_wal_error)
-os.exit()
diff --git a/test/app/cfg.result b/test/app/cfg.result
index c7dec8e966298747cd6712267ddad0dc5856a3da..eefecfaaa4aa69b312337a490d9e5f3d116b76d0 100644
--- a/test/app/cfg.result
+++ b/test/app/cfg.result
@@ -1,5 +1,5 @@
 TAP version 13
-1..29
+1..33
 ok - box is not started
 ok - invalid replication_source
 ok - invalid wal_mode
@@ -19,6 +19,8 @@ ok - panic_on_wal_mode default value
 ok - panic_on_wal_mode new value
 ok - wal_dir_rescan_delay default value
 ok - wal_dir_rescan_delay new value
+ok - too_long_threshold default value
+ok - too_long_threshold new value
 ok - wal_mode fsync
 ok - wal_mode fsync -> fsync
 ok - wal_mode fsync -> write is not supported
@@ -27,5 +29,7 @@ ok - work_dir is invalid
 ok - sophia_dir is invalid
 ok - snap_dir is invalid
 ok - wal_dir is invalid
+ok - logger_nonblock default value
+ok - logger_nonblock new value
 ok - dynamic listen
 ok - dynamic listen
diff --git a/test/app/cfg.test.lua b/test/app/cfg.test.lua
index 7176f1652058912da8caa456137ebc43aa2f03bd..c20927158884e9dd90815ce067a68c24bec95067 100755
--- a/test/app/cfg.test.lua
+++ b/test/app/cfg.test.lua
@@ -4,7 +4,7 @@ local tap = require('tap')
 local test = tap.test('cfg')
 local socket = require('socket')
 local fio = require('fio')
-test:plan(29)
+test:plan(33)
 
 --------------------------------------------------------------------------------
 -- Invalid values
@@ -76,6 +76,10 @@ test:is(box.cfg.wal_dir_rescan_delay, 0.1, "wal_dir_rescan_delay default value")
 box.cfg{wal_dir_rescan_delay=0.2}
 test:is(box.cfg.wal_dir_rescan_delay, 0.2, "wal_dir_rescan_delay new value")
 
+test:is(box.cfg.too_long_threshold, 0.5, "too_long_threshold default value")
+box.cfg{too_long_threshold=0.1}
+test:is(box.cfg.too_long_threshold , 0.1, "too_long_threshold new value")
+
 local tarantool_bin = arg[-1]
 local PANIC = 256
 function run_script(code)
@@ -119,6 +123,13 @@ test:is(run_script(code), PANIC, 'snap_dir is invalid')
 code = [[ box.cfg{ wal_dir='invalid' } ]]
 test:is(run_script(code), PANIC, 'wal_dir is invalid')
 
+test:is(box.cfg.logger_nonblock, true, "logger_nonblock default value")
+code = [[
+box.cfg{logger_nonblock = false }
+os.exit(box.cfg.logger_nonblock == false and 0 or 1)
+]]
+test:is(run_script(code), 0, "logger_nonblock new value")
+
 -- box.cfg { listen = xx }
 local path = './tarantool.sock'
 os.remove(path)
diff --git a/test/app/float_value.result b/test/app/float_value.result
deleted file mode 100644
index 4fd16c37bd6d54aa142a3bcc6b0765919d933d86..0000000000000000000000000000000000000000
--- a/test/app/float_value.result
+++ /dev/null
@@ -1,27 +0,0 @@
-box.cfg
-1	snapshot_count:6
-2	pid_file:box.pid
-3	slab_alloc_factor:1.1
-4	rows_per_wal:50
-5	background:false
-6	logger:tarantool.log
-7	slab_alloc_arena:0.1
-8	listen:3313
-9	logger_nonblock:true
-10	snap_dir:.
-11	coredump:false
-12	slab_alloc_minimal:16
-13	sophia_dir:.
-14	wal_mode:write
-15	wal_dir:.
-16	panic_on_snap_error:true
-17	panic_on_wal_error:true
-18	log_level:5
-19	readahead:16320
-20	slab_alloc_maximal:1048576
-21	too_long_threshold:0.01
-22	snapshot_period:0
-23	wal_dir_rescan_delay:0.1
-------------------------------------------------------
-Check that too_long_threshold = 0.01
-0.01
diff --git a/test/app/float_value.test.lua b/test/app/float_value.test.lua
deleted file mode 100755
index 8ce550aa3ba25ae6ec6840c734e5ef0e3dcbbbc6..0000000000000000000000000000000000000000
--- a/test/app/float_value.test.lua
+++ /dev/null
@@ -1,32 +0,0 @@
-#!/usr/bin/env tarantool
---
--- Test floating points values (too_long_treshold) with fractional part
---
-box.cfg{
-    listen = 3313,
-    slab_alloc_arena = 0.1,
-    pid_file = "box.pid",
-    rows_per_wal = 50,
-    too_long_threshold = 0.01,
-    logger="tarantool.log"
-}
-
-if box.space.space1 ~= nil then
-    box.space.space1:drop()
-end
-s = box.schema.space.create('space1')
-s:create_index('primary', {type = 'hash', parts = {1, 'NUM'}})
-
-t = {}
-for k,v in pairs(box.cfg) do if type(v) ~= 'table' and type(v) ~= 'function' then table.insert(t,k..':'..tostring(v)) end end
-
-print('box.cfg')
-for k,v in pairs(t) do print(k, v) end
-print('------------------------------------------------------')
-x = box.cfg.too_long_threshold
-print('Check that too_long_threshold = 0.01')
-print(x)
-t = nil
-s:drop()
-os.exit()
-