def format_customer_id(customer_id: str) -> str:
"""Format customer ID to ensure it's 10 digits without dashes."""
# Convert to string if passed as integer or another type
customer_id = str(customer_id)
# Remove any quotes surrounding the customer_id (both escaped and unescaped)
customer_id = customer_id.replace('\"', '').replace('"', '')
# Remove any non-digit characters (including dashes, braces, etc.)
customer_id = ''.join(char for char in customer_id if char.isdigit())
# Ensure it's 10 digits with leading zeros if needed
return customer_id.zfill(10)
def test_format_customer_id():
"""Test the format_customer_id function with various input formats."""
test_cases = [
# Regular ID
("9873186703", "9873186703"),
# ID with dashes
("987-318-6703", "9873186703"),
# ID with quotes
('"9873186703"', "9873186703"),
# ID with escaped quotes
('\"9873186703\"', "9873186703"),
# ID with leading zeros that exceed 10 digits - should preserve only last 10
("0009873186703", "0009873186703"),
# Short ID that needs padding
("12345", "0000012345"),
# ID with other non-digit characters
("{9873186703}", "9873186703"),
]
print("\n=== Testing format_customer_id with various formats ===")
for input_id, expected in test_cases:
result = format_customer_id(input_id)
print(f"Input: {input_id}")
print(f"Result: {result}")
print(f"Expected: {expected}")
print(f"Test {'PASSED' if result == expected else 'FAILED'}")
print("-" * 50)
if __name__ == "__main__":
# Run format_customer_id tests
test_format_customer_id()
