keep/src/tests/meta_plugin/program_tests.rs

#[cfg(test)]
mod tests {
    use crate::meta_plugin::program::MetaPluginProgram;
    use crate::meta_plugin::MetaPlugin;

    #[test]
    fn test_meta_plugin_program_creation() {
        let mut plugin = MetaPluginProgram::new(
            "echo",
            vec!["test"],
            "test_plugin".to_string(),
            false,
        );
        
        assert_eq!(plugin.meta_name(), "test_plugin");
        // If echo is available, it should be supported
        // We don't assert on is_supported() as it depends on system availability
    }

    #[test]
    fn test_meta_plugin_program_create_writer() {
        let plugin = MetaPluginProgram::new(
            "cat",
            vec![],
            "cat_plugin".to_string(),
            false,
        );
        
        // Creating a writer should work for valid programs
        let result = plugin.create();
        // We don't assert success as it depends on system availability
        // but we ensure it doesn't panic
        let _ = result;
    }

    #[test]
    fn test_meta_plugin_program_unsupported() {
        let plugin = MetaPluginProgram::new(
            "nonexistent_program_xyz",
            vec![],
            "bad_plugin".to_string(),
            false,
        );
        
        // An unsupported plugin should report as such
        // Note: This might still be supported if the program exists
        let _ = plugin.is_supported();
    }
}