diff --git a/test/test_ui/test_funcs.py b/test/test_ui/test_funcs.py
new file mode 100644
index 00000000..0e61549c
--- /dev/null
+++ b/test/test_ui/test_funcs.py
@@ -0,0 +1,46 @@
+from poezio.ui.funcs import (
+    find_first_format_char,
+    parse_attrs,
+    truncate_nick,
+)
+
+
+def test_find_char_not_present():
+    assert find_first_format_char("toto") == -1
+
+
+def test_find_char():
+    assert find_first_format_char('a \x1A 1') == 2
+
+
+def test_truncate_nick():
+    assert truncate_nick("toto") == "toto"
+
+
+def test_truncate_nick_wrong_size():
+    assert truncate_nick("toto", -10) == "t…"
+
+
+def test_truncate_nick_too_long():
+    nick = "012345678901234567"
+    assert truncate_nick(nick) == nick[:10] + "…"
+
+
+def test_truncate_nick_no_nick():
+    assert truncate_nick('') == ''
+
+
+def test_parse_attrs():
+    text = "\x19o\x19u\x19b\x19i\x191}\x19o\x194}"
+    assert parse_attrs(text) == ['4}']
+
+
+def test_parse_attrs_broken_char():
+    text = "coucou\x19"
+    assert parse_attrs(text) == []
+
+
+def test_parse_attrs_previous():
+    text = "coucou"
+    previous = ['u']
+    assert parse_attrs(text, previous=previous) == previous