Function assert_starts_with

datafusion/common/src/scalar/mod.rs:10033–10040

`err.to_string()` depends on backtrace being present (may have backtrace appended) `err.strip_backtrace()` also depends on backtrace being present (may have "This was likely caused by ..." stripped)

(actual: impl AsRef<str>, expected_prefix: impl AsRef<str>)

    // `err.to_string()` depends on backtrace being present (may have backtrace appended)
    // `err.strip_backtrace()` also depends on backtrace being present (may have "This was likely caused by ..." stripped)
    fn assert_starts_with(actual: impl AsRef<str>, expected_prefix: impl AsRef<str>) {
        let actual = actual.as_ref();
        let expected_prefix = expected_prefix.as_ref();
        assert!(
            actual.starts_with(expected_prefix),
            "Expected '{actual}' to start with '{expected_prefix}'"
        );
    }

    #[test]
    fn test_new_default() {