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: rel_graphql.rs
    path of file: ./repos/prisma-engines/query-engine/connector-test-kit-rs/query-engine-tests/tests/writes/relations
    
    the code of the file until where you have to start completion: use query_engine_tests::*;

#[test_suite(schema(schema))]
mod rel_graphql {
    use indoc::indoc;
    use query_engine_tests::run_query;

    fn schema() -> String {
        let schema = indoc! {
            r#"model Owner{
              #id(id, String, @id, @default(cuid()))
              ownerName String? @unique
              cat       Cat?
           }

           model Cat{
              #id(id, String, @id, @default(cuid()))
              catName String?
    
    async fn one2one_rel_allow_one_item_per_side(runner: Runner) -> TestResult<()> {
        create_row(&runner, "Cat", "garfield").await?;
        create_row(&runner, "Cat", "azrael").await?;
        create_row(&runner, "Owner", "jon").await?;
        create_row(&runner, "Owner", "gargamel").await?;

        //set initial owner
        insta::assert_snapshot!(
          run_query!(&runner, r#"mutation { updateOneCat(
            where: {catName: "garfield"},
            data: {owner: {connect: {ownerName: "jon"}}}) {
              catName
              owner {
                ownerName
              }
            }
          }"#),
          @r###"{"data":{"updateOneCat":{"catName":"garfield","owner":{"ownerName":"jon"}}}}"###
        );

        insta::assert_snapshot!(
          run_query!(&runner, r#"query{findUniqueOwner(where:{ownerName:"jon"}){ownerName, cat{catName}}}"#),
          @r###"{"data":{"findUniqueOwner":{"ownerName":"jon","cat":{"catName":"garfield"}}}}"###
        );

        insta::assert_snapshot!(
          run_query!(&runner, r#"query{findUniqueOwner(where:{ownerName:"gargamel"}){ownerName, cat{catName}}}"#),
          @r###"{"data":{"findUniqueOwner":{"ownerName":"gargamel","cat":null}}}"###
        );

        //change owner
        insta::assert_snapshot!(
          run_query!(&runner, r#"mutation {updateOneCat(where: {catName: "garfield"},
          data: {owner: {connect: {ownerName: "gargamel"}}}) {
              catName
              owner {
                ownerName
              }
            }
          }"#),
          @r###"{"data":{"updateOneCat":{"catName":"garfield","owner":{"ownerName":"gargamel"}}}}"###
        );

        insta::assert_snapshot!(
          run_query!(&runner, r#"query{findUniqueOwner(where:{ownerName:"jon"}){ownerName, cat{catName}}}"#),
          @r###"{"data":{"findUniqueOwner":{"ownerName":"jon","cat":null}}}"###
        );

        insta::assert_snapshot!(
          run_query!(&runner, r#"query{findUniqueOwner(where:{ownerName:"gargamel"}){ownerName, cat{catName}}}"#),
          @r###"{"data":{"findUniqueOwner":{"ownerName":"gargamel","cat":{"catName":"garfield"}}}}"###
        );

        Ok(())
    }