examples of basic filtering vs. extended filtering

I'd like to make sure I have the following correct:

       range       tag
basic("de-DE", "de-Latn-DE") => 0
extended("de-DE", "de-Latn-DE") => 1

basic("de-Latn", "de-Latn-DE") => 1
extended("de-Latn", "de-Latn-DE") => 1

basic("*", "de-Latn-DE") => 1
extended("*", "de-Latn-DE") => 1

basic("*-Latn", "de-Latn-DE") => error
extended("*-Latn", "de-Latn-DE") => 1

Also, is there a range, tag pair that will pass basic but fail extended?
-- 
-eric

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