Add test for case insensitive name check

tests/browsertests/common.nim

@@ -115,7 +115,7 @@ proc login*(session: Session, user, password: string) =
     checkText "#profile-btn #profile-name", user
     click "#profile-btn"
 
-proc register*(session: Session, user, password: string) =
+proc register*(session: Session, user, password: string, verify = true) =
   with session:
     click "#signup-btn"
 
@@ -130,11 +130,13 @@ proc register*(session: Session, user, password: string) =
     click "#signup-modal .create-account-btn"
     wait()
 
-    # Verify that the user menu has been initialised properly.
-    click "#profile-btn"
-    checkText "#profile-btn #profile-name", user
-    # close menu
-    click "#profile-btn"
+    if verify:
+      with session:
+        # Verify that the user menu has been initialised properly.
+        click "#profile-btn"
+        checkText "#profile-btn #profile-name", user
+        # close menu
+        click "#profile-btn"
 
 proc createThread*(session: Session, title, content: string) =
   with session:

tests/browsertests/scenario1.nim

@@ -30,5 +30,18 @@ proc test*(session: Session, baseUrl: string) =
   test "can register":
     with session:
       register("test", "test")
+      logout()
 
-  session.logout()
+  test "can't register same username with different case":
+    with session:
+      register "test1", "test1", verify = false
+      logout()
+
+      navigate baseUrl
+      wait()
+
+      register "TEst1", "test1", verify = false
+
+      ensureExists "#signup-form .has-error"
+      navigate baseUrl
+      wait()