fn test_keyed_container()

in starlark/src/values/display.rs [161:214]

• 51 lines of code
• 2 McCabe index (conditional complexity)

    fn test_keyed_container() {
        struct Wrapped(IndexMap<u32, &'static str>);
        impl fmt::Display for Wrapped {
            fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
                display_keyed_container(
                    f,
                    "prefix[",
                    "]",
                    ": ",
                    // just wrap with `"` to make it clearer in the output
                    self.0.iter().map(|(k, v)| (k, format!("\"{}\"", v))),
                )
            }
        }

        assert_eq!("prefix[]", format!("{:}", Wrapped(indexmap! {})));
        assert_eq!(
            "prefix[1: \"1\"]",
            format!("{:}", Wrapped(indexmap! {1 => "1"}))
        );
        assert_eq!(
            "prefix[1: \"1\", 2: \"2\"]",
            format!("{:}", Wrapped(indexmap! {1 => "1", 2 => "2"})),
        );
        assert_eq!(
            "prefix[1: \"1\", 2: \"2\", 3: \"3\"]",
            format!("{:}", Wrapped(indexmap! {1 => "1", 2 => "2", 3 => "3"})),
        );

        assert_eq!("prefix[]", format!("{:#}", Wrapped(indexmap! {})));
        assert_eq!(
            "prefix[ 1: \"1\" ]",
            format!("{:#}", Wrapped(indexmap! {1 => "1"}))
        );
        assert_eq!(
            indoc!(
                "prefix[
                   1: \"1\",
                   2: \"2\"
                 ]"
            ),
            format!("{:#}", Wrapped(indexmap! {1 => "1", 2 => "2"})),
        );
        assert_eq!(
            indoc!(
                "prefix[
                   1: \"1\",
                   2: \"2\",
                   3: \"3\"
                 ]"
            ),
            format!("{:#}", Wrapped(indexmap! {1 => "1", 2 => "2", 3 => "3"})),
        );
    }