diff --git a/Jenkinsfile b/Jenkinsfile
index 52e7deb..e792a8a 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -3,6 +3,7 @@ pipeline {
 
   environment {
     DatabaseUrl = sh(returnStdout: true, script: 'bash /var/lib/jenkins/variables/CureNet/var.sh ${BRANCH_NAME} DatabaseUrl').trim()
+    DatabaseUrlTesting = sh(returnStdout: true, script: 'bash /var/lib/jenkins/variables/CureNet/var.sh test DatabaseUrl').trim()
   }
 
   stages {
@@ -58,7 +59,7 @@ pipeline {
       }
     }
 
-    stage('Configure') {
+    stage('Configure for tests') {
       parallel {
         stage('Frontend') {
           steps {
@@ -73,8 +74,9 @@ pipeline {
           steps {
             dir(path: 'src/backend') {
               sh 'APP_SECRET=`php8.0 -r "echo md5(\\"branch=${BRANCH_NAME};\\");"` && sed -i "s/APP_SECRET=.*/APP_SECRET=${APP_SECRET}/g" .env'
-              sh 'sed -i "s/DATABASE_URL=.*/DATABASE_URL=${DatabaseUrl}/g" .env.dev'
-              sh 'composer dump-env dev'
+              sh 'sed -i "s/DATABASE_URL=.*/DATABASE_URL=${DatabaseUrlTesting}/g" .env.test'
+              sh 'composer dump-env test'
+              sh 'php bin/console doctrine:schema:update --force';
             }
 
           }
@@ -106,6 +108,31 @@ pipeline {
       }
     }
 
+    stage('Configure') {
+      parallel {
+        stage('Frontend') {
+          steps {
+            dir(path: 'src/frontend') {
+              sh 'echo skip'
+            }
+
+          }
+        }
+
+        stage('Backend') {
+          steps {
+            dir(path: 'src/backend') {
+              sh 'APP_SECRET=`php8.0 -r "echo md5(\\"branch=${BRANCH_NAME};\\");"` && sed -i "s/APP_SECRET=.*/APP_SECRET=${APP_SECRET}/g" .env'
+              sh 'sed -i "s/DATABASE_URL=.*/DATABASE_URL=${DatabaseUrl}/g" .env.dev'
+              sh 'composer dump-env dev'
+            }
+
+          }
+        }
+
+      }
+    }
+
     stage('Build') {
       parallel {
         stage('Frontend') {
diff --git a/src/backend/.env.test b/src/backend/.env.test
index 9e7162f..06142a2 100644
--- a/src/backend/.env.test
+++ b/src/backend/.env.test
@@ -4,3 +4,4 @@ APP_SECRET='$ecretf0rt3st'
 SYMFONY_DEPRECATIONS_HELPER=999999
 PANTHER_APP_ENV=panther
 PANTHER_ERROR_SCREENSHOT_DIR=./var/error-screenshots
+DATABASE_URL="postgresql://db_user:db_password@127.0.0.1:5432/db_name?serverVersion=13&charset=utf8"
diff --git a/src/frontend/src/app/app.component.ts b/src/frontend/src/app/app.component.ts
index 446080d..9bbdd01 100644
--- a/src/frontend/src/app/app.component.ts
+++ b/src/frontend/src/app/app.component.ts
@@ -36,7 +36,7 @@ export class AppComponent {
       avatar: 'https://www.gravatar.com/avatar/81b206a89f89d5b1123b87606075c6a8?s=514&d=robohash',
   };
 
-  get isSidebarOpen() {
+  get isSidebarOpen(): boolean {
     switch (this.sidebarOpen) {
       case SidebarOpenEnum.Open:
         return true;
@@ -86,7 +86,7 @@ export class AppComponent {
     }
   }
 
-  onThemeChanged(theme: string) {
+  onThemeChanged(theme: string): void {
     if (theme === undefined) {
       return;
     }
@@ -95,7 +95,7 @@ export class AppComponent {
     this.isDark = theme.indexOf('dark') !== -1;
   }
 
-  onResize(size: WindowSize) {
+  onResize(size: WindowSize): void {
     if (size === undefined) {
       return;
     }
@@ -104,7 +104,7 @@ export class AppComponent {
     this.sidebarMode = this.isMobile ? 'over' : 'side';
   }
 
-  onLangChanged(lang: string) {
+  onLangChanged(lang: string): void {
     if (lang === undefined) {
       return;
     }
@@ -112,16 +112,16 @@ export class AppComponent {
     this.langControl.setValue(lang);
   }
 
-  toggleSidebar() {
+  toggleSidebar(): void {
     this.sidebarOpen = this.isSidebarOpen ? SidebarOpenEnum.Closed : SidebarOpenEnum.Open;
     this.browserStorageService.setItem('sidebar.open', this.sidebarOpen);
   }
 
-  onSidebarOpenedChange(opened: boolean) {
+  onSidebarOpenedChange(opened: boolean): void {
     this.sidebarOpen = opened ? SidebarOpenEnum.Open : SidebarOpenEnum.Closed;
   }
 
   url(url: string): SafeStyle {
     return this.sanitizer.bypassSecurityTrustStyle(`url('${url}')`);
   }
-}
\ No newline at end of file
+}
diff --git a/src/frontend/src/app/app.module.ts b/src/frontend/src/app/app.module.ts
index 6b83379..aadeb8f 100644
--- a/src/frontend/src/app/app.module.ts
+++ b/src/frontend/src/app/app.module.ts
@@ -12,7 +12,7 @@ import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 import { TranslateLoader, TranslateModule } from '@ngx-translate/core';
 import { TranslateHttpLoader } from '@ngx-translate/http-loader';
 
-export function HttpLoaderFactory(http: HttpClient) {
+export function HttpLoaderFactory(http: HttpClient): TranslateHttpLoader {
   return new TranslateHttpLoader(http, '/assets/lang/', '.json');
 }
 
diff --git a/src/frontend/src/app/modules/shared/services/app/app.service.ts b/src/frontend/src/app/modules/shared/services/app/app.service.ts
index 40ae29e..5299e2d 100644
--- a/src/frontend/src/app/modules/shared/services/app/app.service.ts
+++ b/src/frontend/src/app/modules/shared/services/app/app.service.ts
@@ -13,13 +13,14 @@ export class WindowSize {
     this.isMobile = this.width <= 700;
   }
 
-  update() {
-    this.width = window.innerWidth;
-    this.height = window.innerHeight;
+  static generate(): WindowSize {
+    return new WindowSize(window.innerWidth, window.innerHeight);
   }
 
-  static generate() {
-    return new WindowSize(window.innerWidth, window.innerHeight);
+  update(): WindowSize {
+    this.width = window.innerWidth;
+    this.height = window.innerHeight;
+    return this;
   }
 }
 
@@ -41,29 +42,29 @@ export class AppService {
     });
     this.sizeChange.subscribe(size => this.size = size);
     this.sizeChange.next(WindowSize.generate());
-    let lang = browserStorageService.getItem('language');
-    if (!lang) {
-      lang = this.defaultLang;
+    let language = browserStorageService.getItem('language');
+    if (!language) {
+        language = this.defaultLang;
     }
     this.translate.setDefaultLang(this.defaultLang);
-    this.changeLang(lang);
+    this.changeLang(language);
     fromEvent(window, 'resize').subscribe(e => {
       this.sizeChange.next(WindowSize.generate());
-    })
+    });
   }
 
-  changeLang(lang: string) {
+  changeLang(lang: string): void {
     if (lang !== this.lang) {
       this.translate.use(lang);
       this.langChange.next(lang);
     }
   }
 
-  getLang() {
+  getLang(): string {
     return this.lang;
   }
 
-  getLangs() {
+  getLangs(): string[] {
     return [
       'pl',
       'en',
diff --git a/src/frontend/src/app/modules/shared/services/browser-storage/browser-storage.service.ts b/src/frontend/src/app/modules/shared/services/browser-storage/browser-storage.service.ts
index 5ed4972..fad291e 100644
--- a/src/frontend/src/app/modules/shared/services/browser-storage/browser-storage.service.ts
+++ b/src/frontend/src/app/modules/shared/services/browser-storage/browser-storage.service.ts
@@ -5,12 +5,13 @@ export class BrowserStorageService {
 
   private storage: Storage;
   private namespace: string;
+
   constructor() {
     this.storage = localStorage;
     this.namespace = 'default';
   }
 
-  setNamespace(namespace: string) {
+  setNamespace(namespace: string): void {
     this.namespace = namespace;
   }
 
@@ -18,7 +19,7 @@ export class BrowserStorageService {
     return namespace ?? this.namespace;
   }
 
-  setItem(key: string, value: any, namespace: string | null = null) {
+  setItem(key: string, value: any, namespace: string | null = null): void {
     namespace = this.getNamespace(namespace);
     const path = `${namespace}.${key}`;
     this.storage.setItem(path, JSON.stringify(value));
diff --git a/src/frontend/src/app/modules/shared/services/theme/theme.service.ts b/src/frontend/src/app/modules/shared/services/theme/theme.service.ts
index 080d21c..637f7d9 100644
--- a/src/frontend/src/app/modules/shared/services/theme/theme.service.ts
+++ b/src/frontend/src/app/modules/shared/services/theme/theme.service.ts
@@ -21,11 +21,11 @@ export class ThemeService {
         this.setTheme(userTheme);
     }
 
-    getTheme() {
+    getTheme(): string {
         return this.theme;
     }
 
-    setTheme(theme: string) {
+    setTheme(theme: string): void {
         if (theme !== this.theme) {
             this.themeChange.next(theme);
             document.getElementById('current-theme').setAttribute('href', `/${theme}.css`);
@@ -37,5 +37,5 @@ export class ThemeService {
             'light',
             'dark',
         ];
-    };
+    }
 }