Tests for user name requirements

Summary

https://gitlab.indiscale.com/caosdb/customers/leibniz-zmt/management/-/issues/95

https://gitlab.indiscale.com/caosdb/customers/leibniz-zmt/management/-/issues/94

Test Environment

How to set up a test environment for manual testing?

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• All automated tests pass
• Up-to-date CHANGELOG.md (or not necessary)
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tests/test_administration.py

@@ -306,6 +306,15 @@ def test_insert_user_success():
         entity=None)
 
 
+def test_insert_user_failure_password_invalid():
+    with raises(HTTPClientError) as cm:
+        admin._insert_user(
+            name=test_user + "2",
+            password="1234")
+    assert cm.value.status == 400
+    assert cm.value.msg[:70] == "The password does not comply with the current policies for passwords: "
+
+
 def test_insert_user_failure_permissions():
     switch_to_normal_user()
     with raises(HTTPForbiddenError) as cm: