%!PS

% begin included library code
% see https://codeberg.org/Firedrake/postscript-libraries/
/test {
    /test.count test.count 1 add def
    {
        /test.pass test.pass 1 add def
    } {
        ( ) print
        test.count (....) cvs print
        (-fail) print
    } ifelse
} bind def

/test.end {
    ( ) print
    test.count 0 gt {
        (Passed ) print
        test.pass (...) cvs print
        (/) print
        test.count (...) cvs print
        ( \() print
        test.pass 100 mul test.count idiv (...) cvs print
        (%\)) print
        (\r\n) print
    } if
} bind def

/test.start {
    print (:) print
    /test.pass 0 def
    /test.count 0 def
} bind def


% end included library code

/taxamount {
    0 dict begin
    /brackets exch def
    /income exch def
    /lastbracket 0 def
    0
    brackets {
        /bracket exch def
        income lastbracket gt {
            income bracket 0 get min lastbracket sub bracket 1 get mul add
        } {
            exit
        } ifelse
        /lastbracket bracket 0 get def
    } forall
    100.0 div
    end
} bind def

(taxamount) test.start
10 [[3 50] [7 10] [12 25]] taxamount 2.65 eq test
2 [[1 0] [4 25] [5 50]] taxamount 0.25 eq test
0 [[2 50]] taxamount 0 eq test
test.end