Function format_case_when

datafusion/expr/src/expr.rs:3905–3913

()

    #[test]
    fn format_case_when() -> Result<()> {
        let expr = case(col("a"))
            .when(lit(1), lit(true))
            .when(lit(0), lit(false))
            .otherwise(lit(ScalarValue::Null))?;
        let expected = "CASE a WHEN Int32(1) THEN Boolean(true) WHEN Int32(0) THEN Boolean(false) ELSE NULL END";
        assert_eq!(expected, format!("{expr}"));
        Ok(())
    }

    #[test]
    fn format_cast() -> Result<()> {