diff --git a/tests/test_utils_rangebar.py b/tests/test_utils_rangebar.py
index d3dd6501e..cea04735b 100644
--- a/tests/test_utils_rangebar.py
+++ b/tests/test_utils_rangebar.py
@@ -1,23 +1,19 @@
 import colorama
 import pytest
-from io import StringIO
-import sys
 import os
+import sys
+
+# pour s'assurer que slic est bien importable
 sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
-from slic.utils.rangebar import *
+from slic.utils.rangebar import RangeBar
 
-@pytest.fixture
-def capture_stdout(monkeypatch):
-    buf = StringIO()
-    monkeypatch.setattr("sys.stdout", buf)
-    return buf
 
-def test_full_progress_bar(capture_stdout):
-    out = capture_stdout
+def test_full_progress_bar(capsys):
     with RangeBar(0, 100, width=10, units="kg", fmt=".0f") as bar:
         bar.show(100)
 
-    lines = out.getvalue().strip("\r\n").split("\r")
+    captured = capsys.readouterr()
+    lines = captured.out.strip("\r\n").split("\r")
     assert lines[0].startswith("[ 0 kg |")
     expected = (
         f"[ 0 kg |{colorama.Fore.GREEN}{'█' * 10}{colorama.Fore.RESET}| 100 kg ]   "
@@ -25,14 +21,14 @@ def test_full_progress_bar(capture_stdout):
     )
     assert lines[-1] == expected
 
-def test_half_progress_bar(capture_stdout):
-    out = capture_stdout
+
+def test_half_progress_bar(capsys):
     with RangeBar(0, 100, width=10, units="kg", fmt=".0f") as bar:
         bar.show(50)
 
-    # à 50% pile → 5 blocs pleins, 0 partiel, 5 vides
     expected_bar = f"{'█' * 5}{' ' * 5}"
-    lines = out.getvalue().strip("\r\n").split("\r")
+    captured = capsys.readouterr()
+    lines = captured.out.strip("\r\n").split("\r")
     assert lines[0].startswith("[ 0 kg |")
     expected = (
         f"[ 0 kg |{colorama.Fore.GREEN}{expected_bar}{colorama.Fore.RESET}| 100 kg ]   "
@@ -40,13 +36,14 @@ def test_half_progress_bar(capture_stdout):
     )
     assert lines[-1] == expected
 
-def test_zero_progress_bar(capture_stdout):
-    out = capture_stdout
+
+def test_zero_progress_bar(capsys):
     with RangeBar(0, 100, width=10, units="kg", fmt=".0f") as bar:
         bar.show(0)
 
     expected_bar = f"{' ' * 10}"  # pas de bloc au tout début
-    lines = out.getvalue().strip("\r\n").split("\r")
+    captured = capsys.readouterr()
+    lines = captured.out.strip("\r\n").split("\r")
     assert lines[0].startswith("[ 0 kg |")
     expected = (
         f"[ 0 kg |{colorama.Fore.GREEN}{expected_bar}{colorama.Fore.RESET}| 100 kg ]   "
@@ -54,12 +51,13 @@ def test_zero_progress_bar(capture_stdout):
     )
     assert lines[-1] == expected
 
-def test_overflow_bar(capture_stdout):
-    out = capture_stdout
+
+def test_overflow_bar(capsys):
     with RangeBar(0, 10, width=10, fmt=".0f", units="m") as bar:
         bar.show(15)
 
-    lines = out.getvalue().strip("\r\n").split("\r")
+    captured = capsys.readouterr()
+    lines = captured.out.strip("\r\n").split("\r")
     assert lines[0].startswith("[ 0 m |")
     expected = (
         f"[ 0 m |{colorama.Fore.RED}{'>' * 10}{colorama.Fore.RESET}| 10 m ]   "
@@ -67,12 +65,13 @@ def test_overflow_bar(capture_stdout):
     )
     assert lines[-1] == expected
 
-def test_underflow_bar(capture_stdout):
-    out = capture_stdout
+
+def test_underflow_bar(capsys):
     with RangeBar(0, 10, width=10, fmt=".0f", units="m") as bar:
         bar.show(-5)
 
-    lines = out.getvalue().strip("\r\n").split("\r")
+    captured = capsys.readouterr()
+    lines = captured.out.strip("\r\n").split("\r")
     assert lines[0].startswith("[ 0 m |")
     expected = (
         f"[ 0 m |{colorama.Fore.RED}{'<' * 10}{colorama.Fore.RESET}| 10 m ]   "
@@ -80,18 +79,18 @@ def test_underflow_bar(capture_stdout):
     )
     assert lines[-1] == expected
 
+
 def test_repr():
     bar = RangeBar(0, 100, width=10, units="kg", fmt=".0f")
     expected = "[ 0 kg |10 blocks| 100 kg ]"
     assert repr(bar) == expected
 
-import pytest
 
 @pytest.mark.parametrize("value, expected_bar_part", [
     (0, ' ' * 10),
     (10, '█' + ' ' * 9),
-    (25, '██▌' + ' ' * 7), 
-    (27, '██▊' + ' ' * 7),  
+    (25, '██▌' + ' ' * 7),
+    (27, '██▊' + ' ' * 7),
     (49, '████▉' + ' ' * 5),
     (50, '█' * 5 + ' ' * 5),
     (51, '█' * 5 + '▏' + ' ' * 4),
@@ -100,13 +99,15 @@ import pytest
     (90, '█' * 9 + ' ' * 1),
     (100, '█' * 10)
 ])
-def test_each_value_separately(capture_stdout, value, expected_bar_part):
-    out = capture_stdout
+def test_each_value_separately(capsys, value, expected_bar_part):
     with RangeBar(0, 100, width=10, units="kg", fmt=".0f") as bar:
         bar.show(value)
-    
-    result = out.getvalue().strip()
-    expected = f"[ 0 kg |{colorama.Fore.GREEN}{expected_bar_part}{colorama.Fore.RESET}| 100 kg ]   {colorama.Style.BRIGHT}{value} kg{colorama.Style.RESET_ALL}"
-    
-    assert expected in result, f"\nExpected: {expected}\nGot:      {result}" 
-     
+
+    captured = capsys.readouterr()
+    result = captured.out.strip()
+    expected = (
+        f"[ 0 kg |{colorama.Fore.GREEN}{expected_bar_part}{colorama.Fore.RESET}| 100 kg ]   "
+        f"{colorama.Style.BRIGHT}{value} kg{colorama.Style.RESET_ALL}"
+    )
+
+    assert expected in result, f"\nExpected: {expected}\nGot:      {result}"
\ No newline at end of file