test: add skip_if_enterprise luatest helper

The helper skips a running test with luatest.skip_if in case executed by
Tarantool Enterprise. It's better than checking the package directly in
the test, because luatest.skip_if prints the reason why the test is
skipped.

NO_DOC=test
NO_CHANGELOG=test

(cherry picked from commit d2b216e8)

test/box-luatest/alter_with_compression_test.lua

-local tarantool = require('tarantool')
+local misc = require('test.luatest_helpers.misc')
 local server = require('test.luatest_helpers.server')
 local t = require('luatest')
 
@@ -16,9 +16,8 @@ g.after_all(function(cg)
     cg.server:stop()
 end)
 
-if tarantool.package ~= 'Tarantool Enterprise' then
-
 g.test_invalid_compression_type_during_space_creation = function(cg)
+    misc.skip_if_enterprise()
     cg.server:exec(function(engine, compression)
         local t = require('luatest')
         local format = {{
@@ -37,6 +36,7 @@ g.before_test('test_invalid_compression_type_during_setting_format', function(cg
 end)
 
 g.test_invalid_compression_type_during_setting_format = function(cg)
+    misc.skip_if_enterprise()
     cg.server:exec(function(compression)
         local t = require('luatest')
         local format = {{
@@ -57,8 +57,6 @@ g.after_test('test_invalid_compression_type_during_setting_format', function(cg)
     end)
 end)
 
-end -- tarantool.package ~= 'Tarantool Enterprise'
-
 g = t.group("none compression", t.helpers.matrix({
     engine = {'memtx', 'vinyl'},
 }))

test/box-luatest/transport_test.lua

+local misc = require('test.luatest_helpers.misc')
 local net = require('net.box')
 local server = require('test.luatest_helpers.server')
-local tarantool = require('tarantool')
 local t = require('luatest')
 local g = t.group()
 
@@ -47,10 +47,8 @@ g.test_net_box = function()
         net.connect, {g.server.net_box_uri, params = {transport = 'foo'}})
 end
 
--- Check that SSL isn't available in open-source builds.
-if tarantool.package ~= 'Tarantool Enterprise' then
-
 g.test_listen_ssl = function()
+    misc.skip_if_enterprise()
     g.server:exec(function()
         local t = require('luatest')
         t.assert_error_msg_equals(
@@ -60,6 +58,7 @@ g.test_listen_ssl = function()
 end
 
 g.test_replication_ssl = function()
+    misc.skip_if_enterprise()
     g.server:exec(function()
         local t = require('luatest')
         t.assert_error_msg_equals(
@@ -69,9 +68,8 @@ g.test_replication_ssl = function()
 end
 
 g.test_net_box_ssl = function()
+    misc.skip_if_enterprise()
     t.assert_error_msg_equals(
         'SSL is not available in this build',
         net.connect, {g.server.net_box_uri, params = {transport = 'ssl'}})
 end
-
-end -- tarantool.package ~= 'Tarantool Enterprise'

test/luatest_helpers/misc.lua

@@ -6,11 +6,22 @@ local function is_debug_build()
     return tarantool.build.target:endswith('-Debug')
 end
 
+-- Returns true if Tarantool package is Enterprise.
+local function is_enterprise_package()
+    return tarantool.package == 'Tarantool Enterprise'
+end
+
 -- Skips a running test unless Tarantool build type is Debug.
 local function skip_if_not_debug()
     luatest.skip_if(not is_debug_build(), 'build type is not Debug')
 end
 
+-- Skips a running test if Tarantool package is Enterprise.
+local function skip_if_enterprise()
+    luatest.skip_if(is_enterprise_package(), 'package is Enterprise')
+end
+
 return {
     skip_if_not_debug = skip_if_not_debug,
+    skip_if_enterprise = skip_if_enterprise,
 }