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: statements.rs
    path of file: ./repos/solang/src/sema/yul/tests
    
    the code of the file until where you have to start completion: // SPDX-License-Identifier: Apache-2.0

#![cfg(test)]

use crate::sema::yul::tests::parse;

#[test]
fn variables_assignment_mismatch() {
    let file = r#"
contract testTypes {
    function testAsm() public pure {
        assembly {
           let x, y, z := 2
        }
    }
}
    "#;

    let ns = parse(file);
    assert!(ns
        .diagnostics
        .contains_message("a single value canno
    
fn break_statement() {
    let file = r#"
contract testTypes {
    function testAsm() public pure {
        assembly {
           tryThis(2)

            break
           function tryThis(c) {
               let ret := div(c, 3)
           }
        }
    }
}
    "#;

    let ns = parse(file);
    assert!(ns
        .diagnostics
        .contains_message("break statement outside a for loop"));

    let file = r#"
contract testTypes {
    function testAsm() public pure {
        assembly {
            {
                let x := 0
                for {
                    let i := 0
                } lt(i, 0x100) {
                    i := add(i, 0x20)
                } {
                    x := add(x, i)
                    if lt(x, 30) {
                        break
                    }
                    x := add(x, 1)
                }
            }
        }
    }
}
    "#;

    let ns = parse(file);
    assert_eq!(ns.diagnostics.len(), 1);
    assert!(ns
        .diagnostics
        .contains_message("found contract 'testTypes'"));
}