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: main.rs
    path of file: ./repos/notecalc3/notecalc-lib/tests
    
    the code of the file until where you have to start completion: use notecalc_lib::editor::editor::{EditorInputEvent, InputModifiers, Pos, Selection};
use notecalc_lib::helper::{canvas_y, content_y};
use notecalc_lib::test_common::test_common::{
    assert_contains, assert_contains_pulse, create_test_app, create_test_app2, pulsing_ref_rect,
    to_char_slice, TestHelper,
};
use notecalc_lib::token_parser::TokenType;
use notecalc_lib::{
    EditorObjectType, Layer, NoteCalcApp, OutputMessage, RenderAsciiTextMsg, RenderChar,
    RenderStringMsg, RenderUtf8TextMsg, Tokens
    
fn test_that_dependant_vars_are_pulsed_when_the_cursor_gets_there_by_ctrl_b() {
    let test = create_test_app(35);
    test.paste("var = 2\nvar * 3");
    test.set_cursor_row_col(1, 0);

    test.render();
    let left_gutter_width = LEFT_GUTTER_MIN_WIDTH;
    let render_commands = &test.render_bucket().pulses;
    //  dependant row is not pulsed yet
    assert_contains_pulse(
        render_commands,
        0,
        pulsing_ref_rect(left_gutter_width, 1, 3, 1),
    );

    // step into the first row
    test.input(EditorInputEvent::Char('b'), InputModifiers::ctrl());

    assert_contains_pulse(
        render_commands,
        1,
        pulsing_ref_rect(left_gutter_width, 1, 3, 1),
    );
}