You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: tests.rs
    path of file: ./repos/boa/core/parser/src/parser/expression/primary
    
    the code of the file until where you have to start completion: use crate::parser::tests::check_script_parser;
use boa_ast::{expression::literal::Literal, Expression, Statement};
use boa_interner::{Interner, Sym};
use boa_macros::utf16;

#[test]
fn check_string() {
    // Check empty string
    check_script_parser(
        "\"\"",
        vec![Statement::Expression(Expression::from(Literal::from(Sym::EMPTY_STRING))).into()],
        &mut Interner::default(),
    );

    // Check non-empty string
    let interner = &mut Interner::default();

    
fn check_string() {
    // Check empty string
    check_script_parser(
        "\"\"",
        vec![Statement::Expression(Expression::from(Literal::from(Sym::EMPTY_STRING))).into()],
        &mut Interner::default(),
    );

    // Check non-empty string
    let interner = &mut Interner::default();
    check_script_parser(
        "\"hello\"",
        vec![Statement::Expression(Expression::from(Literal::from(
            interner.get_or_intern_static("hello", utf16!("hello")),
        )))
        .into()],
        interner,
    );
}