Update KOSyncClient

spec/unit/random_spec.lua

@@ -0,0 +1,33 @@
+describe("random package tests", function()
+    local random
+
+    local function is_magic_char(c)
+        return c == "8" or c == "9" or c == "A" or c == "B"
+    end
+
+    setup(function()
+        random = require("frontend/random")
+    end)
+
+    it("should generate uuid without dash", function()
+        for i = 1, 10000 do
+            local uuid = random.uuid()
+            assert.Equals(uuid:len(), 32)
+            assert.Equals(uuid:sub(13, 13), "4")
+            assert.is_true(is_magic_char(uuid:sub(17, 17)))
+        end
+    end)
+
+    it("should generate uuid with dash", function()
+        for i = 1, 10000 do
+            local uuid = random.uuid(true)
+            assert.Equals(uuid:len(), 36)
+            assert.Equals(uuid:sub(9, 9), "-")
+            assert.Equals(uuid:sub(14, 14), "-")
+            assert.Equals(uuid:sub(19, 19), "-")
+            assert.Equals(uuid:sub(24, 24), "-")
+            assert.Equals(uuid:sub(15, 15), "4")
+            assert.is_true(is_magic_char(uuid:sub(20, 20)))
+        end
+    end)
+end)