#[cfg(test)]
mod tests {
    use crate::common::is_binary::is_binary;

    #[test]
    fn test_is_binary_text() {
        let text_data = b"Hello, World! This is plain text.\nWith newlines and spaces.";
        let result = is_binary(text_data);

        // Text data should not be detected as binary
        assert!(!result);
    }

    #[test]
    fn test_is_binary_binary() {
        let binary_data = b"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09";
        let result = is_binary(binary_data);

        // Binary data should be detected as binary
        assert!(result);
    }

    #[test]
    fn test_is_binary_png_signature() {
        let png_data = b"\x89\x50\x4E\x47\x0D\x0A\x1A\x0A";
        let result = is_binary(png_data);

        // PNG signature should be detected as binary
        assert!(result);
    }

    #[test]
    fn test_is_binary_empty() {
        let empty_data = b"";
        let result = is_binary(empty_data);

        // Empty data should not be detected as binary
        assert!(!result);
    }
}