fix: register user while already logged in as other user. (#2042)

src/it/java/org/owasp/webgoat/playwright/webgoat/RegistrationUITest.java

@@ -0,0 +1,48 @@
+/*
+ * SPDX-FileCopyrightText: Copyright © 2025 WebGoat authors
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+package org.owasp.webgoat.playwright.webgoat;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import com.microsoft.playwright.Browser;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.owasp.webgoat.playwright.webgoat.helpers.Authentication;
+import org.owasp.webgoat.playwright.webgoat.pages.RegistrationPage;
+import org.owasp.webgoat.playwright.webgoat.pages.WebGoatLoginPage;
+
+public class RegistrationUITest extends PlaywrightTest {
+
+  @Test
+  @DisplayName("Should register a new user while logged in as other user")
+  void registerWhileLoggedIn(Browser browser) {
+    var page = Authentication.tweety(browser);
+    var loginPage = new WebGoatLoginPage(page);
+    loginPage.open();
+    loginPage.login(Authentication.getTweety().name(), Authentication.getTweety().password());
+
+    var newUsername = "newuser" + System.currentTimeMillis();
+    var password = "password123";
+    var registrationPage = new RegistrationPage(page);
+    registrationPage.open();
+    registrationPage.register(newUsername, password);
+
+    assertThat(page.content()).contains(newUsername);
+  }
+
+  @Test
+  @DisplayName("Should register a new user")
+  void registerNewUser(Browser browser) {
+    var page = browser.newContext().newPage();
+    var registrationPage = new RegistrationPage(page);
+    registrationPage.open();
+
+    var newUsername = "newuser" + System.currentTimeMillis();
+    var password = "password123";
+    registrationPage.register(newUsername, password);
+
+    assertThat(page.content()).contains(newUsername);
+  }
+}