fn test_package_name_parsing()

in util/label/label.rs [281:371]

• 84 lines of code
• 1 McCabe index (conditional complexity)

    fn test_package_name_parsing() -> Result<()> {
        assert_eq!(analyze("//:baz/qux")?.package_name, None);
        assert_eq!(analyze(":baz/qux")?.package_name, None);

        assert_eq!(analyze("//foo:baz/qux")?.package_name, Some("foo"));
        assert_eq!(analyze("//foo/bar:baz/qux")?.package_name, Some("foo/bar"));
        assert_eq!(
            analyze("foo:baz/qux"),
            Err(LabelError(
                "foo:baz/qux must be a legal label; relative packages are not permitted."
                    .to_string()
            ))
        );
        assert_eq!(
            analyze("foo/bar:baz/qux"),
            Err(LabelError(
                "foo/bar:baz/qux must be a legal label; relative packages are not permitted."
                    .to_string()
            ))
        );

        assert_eq!(analyze("//foo")?.package_name, Some("foo"));

        assert_eq!(
            analyze("foo//bar"),
            Err(LabelError(
                "foo//bar must be a legal label; '//' cannot appear in the middle of the label."
                    .to_string()
            ))
        );
        assert_eq!(
            analyze("//foo//bar"),
            Err(LabelError(
                "//foo//bar must be a legal label; '//' cannot appear in the middle of the label."
                    .to_string()
            ))
        );
        assert_eq!(
            analyze("foo//bar:baz"),
            Err(LabelError(
                "foo//bar:baz must be a legal label; '//' cannot appear in the middle of the label."
                    .to_string()
            ))
        );
        assert_eq!(
            analyze("//foo//bar:baz"),
            Err(LabelError(
                "//foo//bar:baz must be a legal label; '//' cannot appear in the middle of the label."
                    .to_string()
            ))
        );

        assert_eq!(
            analyze("//azAZ09/-. $()_:baz")?.package_name,
            Some("azAZ09/-. $()_")
        );
        assert_eq!(
            analyze("//bar#:baz"),
            Err(LabelError(
                "//bar#:baz must be a legal label; package names may contain only A-Z, \
                a-z, 0-9, '/', '-', '.', ' ', '$', '(', ')' and '_'."
                    .to_string()
            ))
        );
        assert_eq!(
            analyze("//bar/:baz"),
            Err(LabelError(
                "//bar/:baz must be a legal label; package names may not end with '/'.".to_string()
            ))
        );

        assert_eq!(analyze("@repo//foo/bar")?.package_name, Some("foo/bar"));
        assert_eq!(analyze("//foo/bar")?.package_name, Some("foo/bar"));
        assert_eq!(
            analyze("foo/bar"),
            Err(LabelError(
                "foo/bar must be a legal label; relative packages are not permitted.".to_string()
            ))
        );

        assert_eq!(analyze("@repo//foo")?.package_name, Some("foo"));
        assert_eq!(analyze("//foo")?.package_name, Some("foo"));
        assert_eq!(
            analyze("foo"),
            Err(LabelError(
                "foo must be a legal label; relative packages are not permitted.".to_string()
            ))
        );

        Ok(())
    }