diff --git a/test_rename.sh b/test_rename.sh
new file mode 100644
index 0000000..ac9e34c
--- /dev/null
+++ b/test_rename.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+
+set -e
+
+# Create test directory
+TEST_DIR="test_dir"
+rm -rf "$TEST_DIR"
+mkdir -p "$TEST_DIR"
+cd "$TEST_DIR"
+
+# Create test files with edge cases
+touch "Test File (1).txt"
+touch "Test File (2).txt"
+touch "60% of Americans Don’t Have $1000 to Pay For Unexpected Medical Expenses.en.vtt"
+touch "Are You The Patsy？.en.vtt"
+touch "Can You Change The Culture of Healthcare At your Company？.en.vtt"
+touch "Let’s Play A Game!.en.vtt"
+touch "Spend More Time Researching Your Healthcare Budget!.en.vtt"
+touch "401(k) Plan.en.vtt"
+touch "Duplicate Name"
+touch "Duplicate Name"
+touch "Hidden File"
+mv "Hidden File" ".Hidden File"  # Make it a hidden file
+
+# Create a long filename that is under the system limit (255 chars max)
+long_base="VeryLongFilename_$(printf 'A%.0s' {1..234})"
+touch "$long_base.txt"
+
+# Print original files
+echo "🔍 Original files:"
+ls -1
+
+# Dry run test
+echo -e "\n🧪 Dry run (--dry-run):"
+../rename_safe.sh --dry-run .
+
+# Actual run test
+echo -e "\n🚀 Actual run:"
+../rename_safe.sh .
+
+# Final listing
+echo -e "\n✅ Final files after renaming:"
+ls -1
+
+# Cleanup
+cd ..
+rm -rf "$TEST_DIR"
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