chore: add test for solving same lesson as different user. (#1930)

We removed the constraint but did not add an extra testcase to cover this bug.

Closes: #1890

src/it/java/org/owasp/webgoat/GeneralLessonIntegrationTest.java

@@ -34,6 +34,16 @@ public class GeneralLessonIntegrationTest extends IntegrationTest {
     checkResults("HttpBasics");
   }
 
+  @Test
+  public void solveAsOtherUserHttpBasics() {
+    login("steven");
+    startLesson("HttpBasics");
+    Map<String, Object> params = new HashMap<>();
+    params.clear();
+    params.put("person", "goatuser");
+    checkAssignment(url("HttpBasics/attack1"), params, true);
+  }
+
   @Test
   public void httpProxies() {
     startLesson("HttpProxies");

src/it/java/org/owasp/webgoat/IntegrationTest.java

@@ -86,6 +86,10 @@ public abstract class IntegrationTest {
 
   @BeforeEach
   public void login() {
+    login("webgoat");
+  }
+
+  protected void login(String user) {
     String location =
         given()
             .when()