🧪 [testing improvement] Missing test for create_progress_bar

tests/test_helpers.py

@@ -0,0 +1,76 @@
+import pytest
+from typing import Optional, Union, Any
+
+# Mock discord classes
+class Member:
+    mention = "@member"
+class TextChannel:
+    mention = "#text-channel"
+class VoiceChannel:
+    mention = "#voice-channel"
+class CategoryChannel:
+    mention = "#category-channel"
+class Guild:
+    pass
+
+import sys
+from unittest.mock import MagicMock
+
+# Create a mock discord module
+discord_mock = MagicMock()
+discord_mock.Member = Member
+discord_mock.TextChannel = TextChannel
+discord_mock.VoiceChannel = VoiceChannel
+discord_mock.CategoryChannel = CategoryChannel
+discord_mock.Guild = Guild
+sys.modules['discord'] = discord_mock
+
+from src.utils.helpers import create_progress_bar
+
+def test_create_progress_bar_zero():
+    """Test progress bar at 0%."""
+    result = create_progress_bar(0, length=20)
+    assert result == "░" * 20 + " 0.0%"
+
+def test_create_progress_bar_half():
+    """Test progress bar at 50%."""
+    result = create_progress_bar(50, length=20)
+    assert result == "█" * 10 + "░" * 10 + " 50.0%"
+
+def test_create_progress_bar_full():
+    """Test progress bar at 100%."""
+    result = create_progress_bar(100, length=20)
+    assert result == "█" * 20 + " 100.0%"
+
+def test_create_progress_bar_custom_length():
+    """Test progress bar with custom length."""
+    result = create_progress_bar(50, length=10)
+    assert result == "█" * 5 + "░" * 5 + " 50.0%"
+
+def test_create_progress_bar_fractional():
+    """Test progress bar with fractional percentage."""
+    # 10 * 33.3 / 100 = 3.33 -> int(3.33) = 3
+    result = create_progress_bar(33.3, length=10)
+    assert result == "█" * 3 + "░" * 7 + " 33.3%"
+
+def test_create_progress_bar_rounding():
+    """Test progress bar rounding behavior."""
+    # 10 * 39.9 / 100 = 3.99 -> int(3.99) = 3
+    result = create_progress_bar(39.9, length=10)
+    assert result == "█" * 3 + "░" * 7 + " 39.9%"
+
+def test_create_progress_bar_over_100():
+    """Test progress bar with percentage > 100."""
+    # current implementation: filled = int(20 * 150 / 100) = 30
+    # bar = '█' * 30 + '░' * (20 - 30) = '█' * 30
+    result = create_progress_bar(150, length=20)
+    assert result.startswith("█" * 30)
+    assert "150.0%" in result
+
+def test_create_progress_bar_negative():
+    """Test progress bar with negative percentage."""
+    # filled = int(20 * -10 / 100) = -2
+    # bar = '█' * -2 + '░' * (20 - (-2)) = '' + '░' * 22
+    result = create_progress_bar(-10, length=20)
+    assert result.startswith("░" * 22)
+    assert "-10.0%" in result