diff --git a/db/mongo_test.go b/db/mongo_test.go
index c203b94..9836dd4 100644
--- a/db/mongo_test.go
+++ b/db/mongo_test.go
@@ -39,6 +39,27 @@ type WorkoutDto struct {
 	Year         int    `json:"year"`
 }
 
+func TestGetCats(t *testing.T) {
+	client, err := mongo.Connect(context.TODO(), options.Client().ApplyURI("mongodb://172.17.0.2:27017/cats"))
+	if err != nil {
+		log.Printf("Error connecting to MongoDB: %v", err)
+	}
+
+	defer func() {
+		if err := client.Disconnect(context.TODO()); err != nil {
+			panic(err)
+		}
+	}()
+
+	coll := client.Database("cats").Collection("cats")
+
+	var result bson.M
+
+	coll.FindOne(context.TODO(), bson.D{{"age", 2}}).Decode(&result)
+
+	println(result)
+}
+
 func TestGetWorkouts(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
 	defer cancel()
diff --git a/fss/git_fs.go b/fss/git_fs.go
index 4b089c3..facce3d 100644
--- a/fss/git_fs.go
+++ b/fss/git_fs.go
@@ -2,7 +2,7 @@ package fss
 
 import (
 	"encoding/json"
-	"io/ioutil"
+	"os"
 	"time"
 )
 
@@ -116,7 +116,7 @@ type Repo struct {
 func ReadJsonGT() []Repo {
 	var repos []Repo
 	pth := "/home/malandr/Documents/repos.json"
-	file, err := ioutil.ReadFile(pth)
+	file, err := os.ReadFile(pth)
 	if err != nil {
 		return nil
 	}
diff --git a/fss/read_lorem.go b/fss/read_lorem.go
index c255856..b074969 100644
--- a/fss/read_lorem.go
+++ b/fss/read_lorem.go
@@ -8,10 +8,10 @@ import (
 	"time"
 )
 
-const DIR_NAME = "/home/malandr/Documents/"
+const DirName = "/home/andrii/Documents/"
 
 func TestReadDocs(t *testing.T) {
-	docsDir, err := os.ReadDir(DIR_NAME)
+	docsDir, err := os.ReadDir(DirName)
 	if err != nil {
 		return
 	}
@@ -23,7 +23,7 @@ func TestReadDocs(t *testing.T) {
 	for i := 1; i <= 400; i++ {
 		wg.Add(1)
 		go func(num int) {
-			fileBts, err := os.ReadFile(fmt.Sprintf("%s%s", DIR_NAME, docsDir[num].Name()))
+			fileBts, err := os.ReadFile(fmt.Sprintf("%s%s", DirName, docsDir[num].Name()))
 			if err != nil {
 				fmt.Println(err)
 			}
diff --git a/go.mod b/go.mod
index 7ab470b..dbe4783 100644
--- a/go.mod
+++ b/go.mod
@@ -1,8 +1,6 @@
 module go-tests
 
-go 1.22
-
-toolchain go1.23.4
+go 1.23
 
 require (
 	github.com/apache/pulsar-client-go v0.10.0
diff --git a/net/get_urls_sync_test.go b/net/get_urls_sync_test.go
index f03ca76..920adbf 100644
--- a/net/get_urls_sync_test.go
+++ b/net/get_urls_sync_test.go
@@ -1,7 +1,7 @@
 package net
 
 import (
-	"io/ioutil"
+	"io"
 	"log"
 	"net/http"
 	"sync"
@@ -27,7 +27,7 @@ func GetData(url string, wg *sync.WaitGroup) {
 	if err != nil {
 		log.Fatalln(err)
 	}
-	data, err := ioutil.ReadAll(resp.Body)
+	data, err := io.ReadAll(resp.Body)
 	if err != nil {
 		log.Fatalln(err)
 	}
diff --git a/regexp_test.go b/regexp_test.go
index 44bd661..ea1144f 100644
--- a/regexp_test.go
+++ b/regexp_test.go
@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"os"
 	"regexp"
+	"runtime"
 	"strings"
 	"testing"
 )
@@ -19,12 +20,7 @@ func TestReadLogFile(t *testing.T) {
 
 	lines := strings.Split(string(logData), "\n")
 
-	//var m runtime.MemStats
-	//runtime.ReadMemStats(&m)
-	//fmt.Printf("Alloc = %s", formatBytes(m.Alloc))
-	//fmt.Printf("\tTotalAlloc = %s", formatBytes(m.TotalAlloc))
-	//fmt.Printf("\tSys = %s", formatBytes(m.Sys))
-	//fmt.Printf("\tNumGC = %v\n", m.NumGC)
+	//memStats()
 
 	userNames := make(map[string]struct{})
 
@@ -73,7 +69,12 @@ func ReadLineByLine() {
 		return
 	}
 	// 2. Ensure the file is closed at the end of the function
-	defer file.Close()
+	defer func(file *os.File) {
+		err := file.Close()
+		if err != nil {
+			return
+		}
+	}(file)
 
 	// 3. Create a new Scanner for the file
 	scanner := bufio.NewScanner(file)
@@ -93,10 +94,9 @@ func ReadLineByLine() {
 
 func TestParseLogs(t *testing.T) {
 
-	//
 	var regExp = regexp.MustCompile("^(\\d+\\.\\d+\\.\\d+\\.\\d+) (.*) (.*) (\\[.*\\]) (\".*\") (\".*\") (\".*\")$")
 
-	data := "127.0.0.1 158x6583999x2 a.navadiya [08/Mar/2025:02:38:51 -0800] \"GET /rest/internal/2.0/client- HTTP/1.0\" 200 18 6 \"https://jira.ontrq.com/secure/Dashboard.jspa?selectPageId=83502\" \"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36\" \"1sx1d6m\""
+	data := "127.0.0.1 158x6583999x2 a.navaddi [08/Mar/2025:02:38:51 -0800] \"GET /rest/internal/2.0/client- HTTP/1.0\" 200 18 6 \"https://jira.x.com/secure/Dashboard.jspa?selectPageId=83502\" \"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36\" \"1sx1d6m\""
 
 	matchString := regExp.MatchString(data)
 
@@ -110,7 +110,6 @@ func TestParseLogs(t *testing.T) {
 		//requestIdx := 4
 		//clientIdx := 5
 		//sessionIdx := 6
-		//
 		//ipData := string(submatch[0][ipIdx])
 		//reqId := string(submatch[0][reqIdx])
 		//username := string(submatch[0][userNameIdx])
@@ -126,3 +125,12 @@ func TestParseLogs(t *testing.T) {
 
 	}
 }
+
+func memStats() {
+	var m runtime.MemStats
+	runtime.ReadMemStats(&m)
+	fmt.Printf("Alloc = %s", formatBytes(m.Alloc))
+	fmt.Printf("\tTotalAlloc = %s", formatBytes(m.TotalAlloc))
+	fmt.Printf("\tSys = %s", formatBytes(m.Sys))
+	fmt.Printf("\tNumGC = %v\n", m.NumGC)
+}