test: rewrite engine/uuid.test.lua with luatest

NO_DOC=refactoring
NO_TEST=refactoring
NO_CHANGELOG=refactoring

test/engine-luatest/uuid_test.lua

@@ -0,0 +1,44 @@
+local server = require('luatest.server')
+local t = require('luatest')
+
+local g = t.group('UUID tests', {
+    {engine = 'memtx'},
+    {engine = 'vinyl'},
+})
+
+g.before_all(function(cg)
+    cg.server = server:new({
+        alias = 'default',
+    })
+    cg.server:start()
+end)
+
+g.after_all(function(cg)
+    cg.server:drop()
+end)
+
+g.before_each(function(cg)
+    cg.server:exec(function(engine)
+        local uuid = require('uuid')
+        box.schema.space.create('test', {engine = engine})
+        box.space.test:create_index('pk', {parts={1, 'uuid'}})
+        for _ = 1, 16 do
+            box.space.test:insert({uuid.new()})
+        end
+    end, {cg.params.engine})
+end)
+
+g.after_each(function(cg)
+    cg.server:exec(function()
+        box.space.test:drop()
+    end)
+end)
+
+g.test_uuid_order = function(cg)
+    cg.server:exec(function()
+        local tuples = box.space.test:select({})
+        for i = 1, #tuples - 1 do
+            t.assert(tostring(tuples[i][1]) < tostring(tuples[i + 1][1]))
+        end
+    end)
+end