diff --git a/tests/test_filter.py b/tests/test_filter.py
index 0e3a82c..2156081 100644
--- a/tests/test_filter.py
+++ b/tests/test_filter.py
@@ -1,11 +1,58 @@
 from wiqaya import Wiqaya
 
-def test_is_profane():
+def test_is_profane_clean_ar():
     w = Wiqaya(lang="ar")
     assert w.is_profane("نص عادي") == False
 
-def test_censor():
+def test_is_profane_dirty_ar():
     w = Wiqaya(lang="ar")
-    text = "نص سيء حرامي"
-    print(w.censor(text, char="*") )
-    assert w.censor(text, char="*") == "نص سيء *****"
\ No newline at end of file
+    assert w.is_profane("حرامي") == True
+
+def test_is_profane_tashkeel():
+    w = Wiqaya(lang="ar")
+    assert w.is_profane("حَرَامِي") == True
+
+def test_is_profane_mixed():
+    w = Wiqaya(lang="ar")
+    assert w.is_profane("نص عادي فيه حرامي") == True
+
+def test_get_profane_words_found():
+    w = Wiqaya(lang="ar")
+    assert w.get_profane_words("نص فيه حرامي و أطرش") == ["حرامي", "أطرش"]
+
+def test_get_profane_words_empty():
+    w = Wiqaya(lang="ar")
+    assert w.get_profane_words("نص نظيف تماماً") == []
+
+def test_censor_ar():
+    w = Wiqaya(lang="ar")
+    assert w.censor("نص سيء حرامي", char="*") == "نص سيء *****"
+
+def test_censor_custom_char():
+    w = Wiqaya(lang="ar")
+    assert w.censor("حرامي", char="#") == "#####"
+
+def test_censor_clean_text():
+    w = Wiqaya(lang="ar")
+    assert w.censor("نص نظيف") == "نص نظيف"
+
+def test_is_profane_clean_en():
+    w = Wiqaya(lang="en")
+    assert w.is_profane("Hello World") == False
+
+def test_is_profane_dirty_en():
+    w = Wiqaya(lang="en")
+    assert w.is_profane("damn") == True
+
+def test_censor_en():
+    w = Wiqaya(lang="en")
+    assert w.censor("this is damn annoying", char="*") == "this is **** annoying"
+
+def test_get_profane_words_en():
+    w = Wiqaya(lang="en")
+    assert w.get_profane_words("what the damn hell") == ["damn", "hell"]
+
+def test_invalid_lang():
+    import pytest
+    with pytest.raises(ValueError):
+        Wiqaya(lang="xx")
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