
PASS iso-2022-jp encoder: very basic 
FAIL iso-2022-jp encoder: basics assert_equals: expected "%1B(J\\~s%1B(B\%1B$B%_PP%1B(B" but got "%1B(J\\~s\%1B$B%_PP%1B(B"
FAIL iso-2022-jp encoder: SO/SI ESC assert_equals: expected "%0E%0F%1Bx" but got "%U000E%U000F%U001Bx"