[squeek502]

If I understand you correctly, then yes.

    fn canError(foo: bool) !void {
        if (foo) {
            return error.Foo;
        } else {
            return error.Bar;
        }
    }

    test "canError" {
        canError(true) catch |e| switch (e) {
            error.Foo => @panic("foo!"),
        };
    }

Running `zig test` on that file would give:

    ./tmp/errors.zig:10:30: error: error.Bar not handled in switch
        canError(true) catch |e| switch (e) {
                                 ^

[Zababa]

You did understand it correctly. That's a really nice feature.