Tests Bitprop

Jan Burse, created Sep 15. 2018
/**
* Prolog code for the bit properties test casess.
*
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:- use_package(library(jekdev/reference/testing)).
:- multifile runner:ref/4.
:- discontiguous runner:ref/4.
:- multifile runner:case/4.
:- discontiguous runner:case/4.
:- use_module(library(misc/bits)).
% bitcount/2
runner:ref(bitcount, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.1').
runner:case(bitcount, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.1, XLOG 1') :-
X is bitcount(12),
X == 2.
runner:case(bitcount, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.1, XLOG 2') :-
X is bitcount(-12),
X == 3.
runner:case(bitcount, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.1, XLOG 3') :-
X is bitcount(11*2^100),
X == 3.
runner:case(bitcount, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.1, XLOG 4') :-
X is bitcount(-12*2^100),
X == 103.
% bitlength/2
runner:ref(bitlength, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.2').
runner:case(bitlength, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.2, XLOG 1') :-
X is bitlength(12),
X == 4.
runner:case(bitlength, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.2, XLOG 2') :-
X is bitlength(-12),
X == 4.
runner:case(bitlength, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.2, XLOG 3') :-
X is bitlength(12*2^100),
X == 104.
runner:case(bitlength, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.2, XLOG 4') :-
X is bitlength(-12*2^100),
X == 104.
% lowestsetbit/2
runner:ref(lowestsetbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.3').
runner:case(lowestsetbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.3, XLOG 1') :-
X == 2.
runner:case(lowestsetbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.3, XLOG 2') :-
X == 2.
runner:case(lowestsetbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.3, XLOG 3') :-
X is lowestsetbit(12*2^100),
X == 102.
runner:case(lowestsetbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.3, XLOG 4') :-
X is lowestsetbit(-12*2^100),
X == 102.
% setbit/3
runner:ref(setbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.4').
runner:case(setbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.4, XLOG 1') :-
X is setbit(4,77),
X == 93.
runner:case(setbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.4, XLOG 2') :-
X is setbit(3,-77),
X == -69.
runner:case(setbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.4, XLOG 3') :-
X is setbit(104,77*2^100),
X =:= 93*2^100.
runner:case(setbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.4, XLOG 4') :-
X is setbit(103,-77*2^100),
X =:= -69*2^100.
% clearbit/3
runner:ref(clearbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.5').
runner:case(clearbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.5, XLOG 1') :-
X is clearbit(3,77),
X == 69.
runner:case(clearbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.5, XLOG 2') :-
X is clearbit(4,-77),
X == -93.
runner:case(clearbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.5, XLOG 3') :-
X is clearbit(103,77*2^100),
X =:= 69*2^100.
runner:case(clearbit, 3, misc_bitprop, 'CLP(FD) 0.9.2, 1.5, XLOG 4') :-
X is clearbit(104,-77*2^100),
X =:= -93*2^100.
% testbit/2
runner:ref(testbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.6').
runner:case(testbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.6, XLOG 1') :-
testbit(3, 77).
runner:case(testbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.6, XLOG 2') :-
\+ testbit(4, 77).
runner:case(testbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.6, XLOG 3') :-
X is -77*2^100,
testbit(104, X).
runner:case(testbit, 2, misc_bitprop, 'CLP(FD) 0.9.2, 1.6, XLOG 4') :-
X is -77*2^100,
\+ testbit(103, X).

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