diff --git a/cssutils/tests/test_cssstyledeclaration.py b/cssutils/tests/test_cssstyledeclaration.py
index 4f2094f8..4afeb652 100644
--- a/cssutils/tests/test_cssstyledeclaration.py
+++ b/cssutils/tests/test_cssstyledeclaration.py
@@ -465,7 +465,6 @@ def test_setProperty(self):
             ('left', '0', ''): 'left: 0',
             ('left', '0', 'important'): 'left: 0 !important',
             ('LEFT', '0', 'important'): 'left: 0 !important',
-            ('left', '0', 'important'): 'left: 0 !important',
         }
         for test, exp in list(tests.items()):
             s = cssutils.css.CSSStyleDeclaration()
diff --git a/cssutils/tests/test_parse.py b/cssutils/tests/test_parse.py
index 13103ece..e975d809 100644
--- a/cssutils/tests/test_parse.py
+++ b/cssutils/tests/test_parse.py
@@ -98,11 +98,6 @@ def test_parseUrl(self):
                 'utf-8',
                 'a {\n    color: red\n    }',
             ),
-            ('http://cthedot.de/test.css', 'a {color: red}'): (
-                True,
-                'utf-8',
-                'a {\n    color: red\n    }',
-            ),
             ('http://cthedot.de/test.css', '@charset "ascii";a {color: red}'): (
                 True,
                 'ascii',
diff --git a/cssutils/tests/test_util.py b/cssutils/tests/test_util.py
index 970bf258..ebd96d99 100644
--- a/cssutils/tests/test_util.py
+++ b/cssutils/tests/test_util.py
@@ -266,22 +266,6 @@ def fetcher(url):
                 0,
                 '@charset "latin1";\xc3\xa4',
             ),  # read as latin1!
-            # override ü @charset
-            ('latin1', None, (None, b'@charset "ascii";')): (
-                'latin1',
-                0,
-                '@charset "latin1";',
-            ),
-            ('latin1', None, (None, '@charset "utf-8";ä'.encode('latin1'))): (
-                'latin1',
-                0,
-                '@charset "latin1";ä',
-            ),
-            ('latin1', None, (None, '@charset "utf-8";ä'.encode())): (
-                'latin1',
-                0,
-                '@charset "latin1";\xc3\xa4',
-            ),  # read as latin1!
             # ===== 1. HTTP WINS =====
             (None, 'ascii', ('latin1', b'')): ('latin1', 1, ''),
             (None, 'ascii', ('latin1', b'123')): ('latin1', 1, '123'),