Function test_trunc

src/functions/math_functions.rs:419–444

()

    
    #[test]
    fn test_trunc() {
        let conn = Connection::open_in_memory().unwrap();
        register_math_functions(&conn).unwrap();
        
        let result: f64 = conn.query_row(
            "SELECT trunc(3.7)",
            [],
            |row| row.get(0)
        ).unwrap();
        assert_eq!(result, 3.0);
        
        let result: f64 = conn.query_row(
            "SELECT trunc(-3.7)",
            [],
            |row| row.get(0)
        ).unwrap();
        assert_eq!(result, -3.0);
        
        // Test with precision
        let result: f64 = conn.query_row(
            "SELECT trunc(3.789, 2)",
            [],
            |row| row.get(0)
        ).unwrap();
        assert_eq!(result, 3.78);
    }
    
    #[test]
    fn test_round_with_precision() {