rishi/scryer-prolog
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

expand remaining tests.

Browse Source
This commit is contained in:
Mark Thom
2018-01-16 19:53:49 -07:00
parent 4597a1d5a8
commit 38cd9e5db7
2 changed files with 673 additions and 767 deletions
Download Patch File Download Diff File Expand all files Collapse all files

672
src/tests.rs
View File

@@ -407,3 +407,675 @@ fn test_queries_on_lists()
assert_prolog_failure!(&mut wam, "?- member([X, Y, Y], [a, [b, c], [b, b], [Z, x], [d, f]]).");
assert_prolog_failure!(&mut wam, "?- member([X, Y, Z], [a, [b, c], [b, b], [Z, x], [d, f]]).");
}
#[test]
fn test_queries_on_indexed_predicates()
{
let mut wam = Machine::new();
submit(&mut wam, "p(a) :- a.
p(b) :- b, f(X).
p(c) :- c, g(X).
p(f(a)) :- a.
p(g(b, c)) :- b.
p(g(b)) :- b.
p([a|b]) :- a.
p([]).
p(X) :- x.
p([c, d, e]).");
assert_prolog_failure!(&mut wam, "?- p(a).");
assert_prolog_failure!(&mut wam, "?- p(b).");
assert_prolog_failure!(&mut wam, "?- p(c).");
assert_prolog_failure!(&mut wam, "?- p(f(a)).");
assert_prolog_failure!(&mut wam, "?- p(g(b, X)).");
assert_prolog_failure!(&mut wam, "?- p(g(Y, X)).");
assert_prolog_failure!(&mut wam, "?- p(g(Y, c)).");
assert_prolog_failure!(&mut wam, "?- p(g(b)).");
assert_prolog_success!(&mut wam, "?- p([]).");
assert_prolog_success!(&mut wam, "?- p([c, d, e]).");
assert_prolog_success!(&mut wam, "?- p([c, d | X]).", ["X = [e]"]);
assert_prolog_success!(&mut wam, "?- p([c|X]).", ["X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|X]).", ["Y = c", "X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|[d|Xs]]).", ["Xs = [e]", "Y = c"]);
submit(&mut wam, "a.");
assert_prolog_success!(&mut wam, "?- p(a).");
assert_prolog_failure!(&mut wam, "?- p(b).");
assert_prolog_failure!(&mut wam, "?- p(c).");
assert_prolog_success!(&mut wam, "?- p(f(a)).");
assert_prolog_failure!(&mut wam, "?- p(g(b, X)).");
assert_prolog_failure!(&mut wam, "?- p(g(Y, X)).");
assert_prolog_failure!(&mut wam, "?- p(g(Y, c)).");
assert_prolog_failure!(&mut wam, "?- p(g(b)).");
assert_prolog_success!(&mut wam, "?- p([]).");
assert_prolog_success!(&mut wam, "?- p([c, d, e]).");
assert_prolog_success!(&mut wam, "?- p([c, d | X]).", ["X = [e]"]);
assert_prolog_success!(&mut wam, "?- p([c|X]).", ["X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|X]).", ["X = b", "Y = a",
"Y = c", "X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|[d|Xs]]).", ["Xs = [e]", "Y = c"]);
submit(&mut wam, "b.");
submit(&mut wam, "f(x).");
assert_prolog_success!(&mut wam, "?- p(a).");
assert_prolog_success!(&mut wam, "?- p(b).");
assert_prolog_failure!(&mut wam, "?- p(c).");
assert_prolog_success!(&mut wam, "?- p(f(a)).");
assert_prolog_success!(&mut wam, "?- p(g(b, X)).", ["X = c"]);
assert_prolog_success!(&mut wam, "?- p(g(Y, X)).", ["X = c", "Y = b"]);
assert_prolog_success!(&mut wam, "?- p(g(Y, c)).", ["Y = b"]);
assert_prolog_success!(&mut wam, "?- p(g(b)).");
assert_prolog_success!(&mut wam, "?- p([]).");
assert_prolog_success!(&mut wam, "?- p([c, d, e]).");
assert_prolog_success!(&mut wam, "?- p([c, d | X]).", ["X = [e]"]);
assert_prolog_success!(&mut wam, "?- p([c|X]).", ["X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|X]).", ["X = b", "Y = a",
"Y = c", "X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|[d|Xs]]).", ["Xs = [e]", "Y = c"]);
submit(&mut wam, "c.");
submit(&mut wam, "g(X).");
assert_eq!(submit(&mut wam, "?- p(a)."), true);
assert_eq!(submit(&mut wam, "?- p(b)."), true);
assert_eq!(submit(&mut wam, "?- p(c)."), true);
assert_eq!(submit(&mut wam, "?- p(f(a))."), true);
assert_prolog_success!(&mut wam, "?- p(g(b, X)).", ["X = c"]);
assert_prolog_success!(&mut wam, "?- p(g(Y, X)).", ["X = c", "Y = b"]);
assert_prolog_success!(&mut wam, "?- p(g(Y, c)).", ["Y = b"]);
assert_eq!(submit(&mut wam, "?- p(g(b))."), true);
assert_eq!(submit(&mut wam, "?- p([])."), true);
assert_eq!(submit(&mut wam, "?- p([c, d, e])."), true);
assert_prolog_success!(&mut wam, "?- p([c, d | X]).", ["X = [e]"]);
assert_prolog_success!(&mut wam, "?- p([c|X]).", ["X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|X]).", ["X = b", "Y = a",
"Y = c", "X = [d, e]"]);
assert_prolog_success!(&mut wam, "?- p([Y|[d|Xs]]).", ["Xs = [e]", "Y = c"]);
assert_eq!(submit(&mut wam, "?- p(blah)."), false);
submit(&mut wam, "x.");
assert_eq!(submit(&mut wam, "?- p(a)."), true);
assert_eq!(submit(&mut wam, "?- p(b)."), true);
assert_eq!(submit(&mut wam, "?- p(c)."), true);
assert_eq!(submit(&mut wam, "?- p(true(a))."), true);
assert_prolog_success!(&mut wam, "?- p(g(b, X)).", ["X = c",
"X = _2"]);
assert_prolog_success!(&mut wam, "?- p(g(Y, X)).", ["X = c", "Y = b",
"X = _2", "Y = _1"]);
assert_prolog_success!(&mut wam, "?- p(g(Y, c)).", ["Y = b",
"Y = _1"]);
assert_eq!(submit(&mut wam, "?- p(g(b))."), true);
assert_eq!(submit(&mut wam, "?- p([])."), true);
assert_eq!(submit(&mut wam, "?- p([c, d, e])."), true);
assert_prolog_success!(&mut wam, "?- p([c, d | X]).", ["X = _1",
"X = [e]"]);
assert_prolog_success!(&mut wam, "?- p([c|X]).", ["X = [d, e]",
"X = _1"]);
assert_prolog_success!(&mut wam, "?- p([Y|X]).", ["X = b", "Y = a",
"Y = c", "X = [d, e]",
"X = _1", "Y = _0"]);
assert_prolog_success!(&mut wam, "?- p([Y|[d|Xs]]).", ["Xs = [e]", "Y = c",
"Xs = _1", "Y = _2"]);
assert_prolog_success!(&mut wam, "?- p(blah).");
submit(&mut wam, "ind_call(or(X, Y)) :- ind_call(X).
ind_call(trace) :- trace.
ind_call(or(X, Y)) :- ind_call(Y).
ind_call(notrace) :- notrace.
ind_call(nl) :- nl.
ind_call(X) :- builtin(X).
ind_call(X) :- extern(X).
ind_call(ind_call(X)) :- ind_call(X).
ind_call(repeat).
ind_call(repeat) :- ind_call(repeat).
ind_call(false).");
assert_eq!(submit(&mut wam, "?- ind_call(repeat)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(false)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(ind_call(repeat))."), true);
assert_eq!(submit(&mut wam, "?- ind_call(ind_call(false))."), true);
assert_eq!(submit(&mut wam, "?- ind_call(notrace)."), false);
assert_eq!(submit(&mut wam, "?- ind_call(nl)."), false);
assert_eq!(submit(&mut wam, "?- ind_call(builtin(X))."), false);
assert_eq!(submit(&mut wam, "?- ind_call(extern(X))."), false);
submit(&mut wam, "notrace.");
submit(&mut wam, "nl.");
assert_eq!(submit(&mut wam, "?- ind_call(repeat)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(false)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(ind_call(repeat))."), true);
assert_eq!(submit(&mut wam, "?- ind_call(ind_call(false))."), true);
assert_eq!(submit(&mut wam, "?- ind_call(notrace)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(nl)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(builtin(X))."), false);
assert_eq!(submit(&mut wam, "?- ind_call(extern(X))."), false);
submit(&mut wam, "builtin(X).");
submit(&mut wam, "extern(x).");
assert_eq!(submit(&mut wam, "?- ind_call(repeat)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(false)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(ind_call(repeat))."), true);
assert_eq!(submit(&mut wam, "?- ind_call(ind_call(false))."), true);
assert_eq!(submit(&mut wam, "?- ind_call(notrace)."), true);
assert_eq!(submit(&mut wam, "?- ind_call(nl)."), true);
assert_prolog_success!(&mut wam, "?- ind_call(builtin(X)).", ["X = _1"]);
assert_prolog_success!(&mut wam, "?- ind_call(extern(X)).", ["X = _1"]);
}
#[test]
fn test_queries_on_conjuctive_queries() {
let mut wam = Machine::new();
submit(&mut wam, "p(a, b).");
submit(&mut wam, "q(b, c).");
assert_prolog_success!(&mut wam, "?- p(X, Y), q(Y, Z).", ["X = a", "Z = c", "Y = b"]);
assert_prolog_failure!(&mut wam, "?- p(X, Y), q(Y, X).");
submit(&mut wam, "p(a, [f(g(X))]).");
submit(&mut wam, "q(Y, c).");
assert_prolog_success!(&mut wam, "?- p(X, Y), q(Y, Z).", ["Y = f(g(_9))", "X = a", "Z = c"]);
assert_prolog_failure!(&mut wam, "?- p(X, Y), q(Y, X).");
submit(&mut wam, "member(X, [X|_]).
member(X, [_|Xs]) :- member(X, Xs).");
assert_prolog_success!(&mut wam, "?- member(X, [a,b,c]), member(X, [a,b,c]).",
["X = a",
"X = b",
"X = c"]);
assert_prolog_success!(&mut wam, "?- member(X, [a,b,c]), member(X, [b,c]).",
["X = b",
"X = c"]);
assert_prolog_success!(&mut wam, "?- member(X, [a,c]), member(X, [b,c]).",
["X = c"]);
assert_prolog_success!(&mut wam, "?- member(X, [a,b,c,d]), !, member(X, [a,d]).",
["X = a"]);
assert_prolog_failure!(&mut wam, "?- member(X, [a,b,c,d]), !, member(X, [e]).");
assert_prolog_success!(&mut wam, "?- member([X,X],[a,b,c,[d,d],[e,d]]),
member(X, [a,b,c,d,e,f,g]),
member(Y, [X, a, b, c, d]).",
["X = d", "Y = d",
"X = d", "Y = a",
"X = d", "Y = b",
"X = d", "Y = c",
"X = d", "Y = d"]);
submit(&mut wam, "p(a, [f(g(X))]). p(X, c) :- c.");
submit(&mut wam, "c.");
submit(&mut wam, "q(Y, c).");
assert_prolog_success!(&mut wam, "?- p(X, Y), q(Y, Z).",
["X = a", "Z = c", "Y = f(g(_9))",
"X = _0", "Z = c", "Y = c"]);
assert_prolog_success!(&mut wam, "?- p(X, Y), !, q(Y, Z).",
["Z = c", "Y = f(g(_9))", "X = a"]);
submit(&mut wam, "q([f(g(x))], Z). q([f(g(y))], Y). q([f(g(z))], a).");
assert_prolog_success!(&mut wam, "?- p(X, Y), q(Y, Z).",
["Z = _10", "X = a", "Y = f(g(x))",
"Z = _10", "X = a", "Y = f(g(y))",
"Z = a", "X = a", "Y = f(g(z))"]);
assert_prolog_success!(&mut wam, "?- p(X, Y), !, q(Y, Z).",
["X = a", "Y = f(g(x))", "Z = _10",
"X = a", "Y = f(g(y))", "Z = _10",
"X = a", "Y = f(g(z))", "Z = a"]);
assert_prolog_success!(&mut wam, "?- p(X, Y), !, q(Y, X).",
["X = a", "Y = f(g(x))",
"X = a", "Y = f(g(y))",
"X = a", "Y = f(g(z))"]);
submit(&mut wam, "p(X, [f(g(x))]). p(X, [f(g(y))]). p(X, [f(g(z))]).");
assert_prolog_failure!(&mut wam, "?- q(f(X), Y), p(X, Y).");
assert_prolog_success!(&mut wam, "?- q(X, Y), p(X, Y).",
["Y = [f(g(x))]", "X = f(g(x))",
"Y = [f(g(y))]", "X = f(g(x))",
"Y = [f(g(z))]", "X = f(g(x))",
"Y = [f(g(x))]", "X = f(g(y))",
"Y = [f(g(y))]", "X = f(g(y))",
"Y = [f(g(z))]", "X = f(g(y))"]);
assert_prolog_success!(&mut wam, "?- p(X, Y), q(X, Y).",
["Y = f(g(x))", "X = [f(g(x))]",
"Y = f(g(x))", "X = [f(g(y))]",
"Y = f(g(y))", "X = [f(g(x))]",
"Y = f(g(y))", "X = [f(g(y))]",
"Y = f(g(z))", "X = [f(g(x))]",
"Y = f(g(z))", "X = [f(g(y))]"]);
assert_prolog_success!(&mut wam, "?- p(X, Y), q(Y, X).",
["Y = f(g(x))", "X = s_0_2",
"Y = f(g(y))", "X = s_0_2",
"Y = f(g(z))", "X = a"]);
assert_prolog_success!(&mut wam, "?- q(X, Y), p(Y, X).",
["Y = s_0_1", "X = f(g(x))",
"Y = s_0_1", "X = f(g(y))",
"Y = a" , "X = f(g(z))"]);
}
#[test]
fn test_queries_on_call_n()
{
let mut wam = Machine::new();
submit(&mut wam, "maplist(Pred, []).
maplist(Pred, [X|Xs]) :- call(Pred, X), maplist(Pred, Xs).");
submit(&mut wam, "f(a). f(b). f(c).");
assert_prolog_success!(&mut wam, "?- maplist(f, [X,Y,Z]).",
["X = a", "Y = a", "Z = a",
"X = a", "Y = a", "Z = b",
"X = a", "Y = a", "Z = c",
"X = a", "Y = b", "Z = a",
"X = a", "Y = b", "Z = b",
"X = a", "Y = b", "Z = c",
"X = a", "Y = c", "Z = a",
"X = a", "Y = c", "Z = b",
"X = a", "Y = c", "Z = c",
"X = b", "Y = a", "Z = a",
"X = b", "Y = a", "Z = b",
"X = b", "Y = a", "Z = c",
"X = b", "Y = b", "Z = a",
"X = b", "Y = b", "Z = b",
"X = b", "Y = b", "Z = c",
"X = b", "Y = c", "Z = a",
"X = b", "Y = c", "Z = b",
"X = b", "Y = c", "Z = c",
"X = c", "Y = a", "Z = a",
"X = c", "Y = a", "Z = b",
"X = c", "Y = a", "Z = c",
"X = c", "Y = b", "Z = a",
"X = c", "Y = b", "Z = b",
"X = c", "Y = b", "Z = c",
"X = c", "Y = c", "Z = a",
"X = c", "Y = c", "Z = b",
"X = c", "Y = c", "Z = c"]);
assert_prolog_success!(&mut wam, "?- maplist(f, [a,Y,Z]).",
["Z = a", "Y = a",
"Z = a", "Y = b",
"Z = a", "Y = c",
"Z = b", "Y = a",
"Z = b", "Y = b",
"Z = b", "Y = c",
"Z = c", "Y = a",
"Z = c", "Y = b",
"Z = c", "Y = c"]);
assert_prolog_success!(&mut wam, "?- maplist(f, [X,a,b]).",
["X = a",
"X = b",
"X = c"]);
assert_eq!(submit(&mut wam, "?- maplist(f, [c,a,b])."), true);
assert_eq!(submit(&mut wam, "?- maplist(f, [d,e,f])."), false);
assert_eq!(submit(&mut wam, "?- maplist(f, [])."), true);
assert_eq!(submit(&mut wam, "?- maplist(f(X), [a,b,c])."), false);
submit(&mut wam, "f(X) :- call(X), call(X).");
submit(&mut wam, "p(x). p(y).");
assert_eq!(submit(&mut wam, "?- f(p)."), false);
assert_prolog_success!(&mut wam, "?- f(p(X)).", ["X = x",
"X = y"]);
assert_eq!(submit(&mut wam, "?- f(p(x))."), true);
assert_eq!(submit(&mut wam, "?- f(p(w))."), false);
assert_eq!(submit(&mut wam, "?- f(p(X, Y))."), false);
submit(&mut wam, "f(P) :- call(P, X), call(P, Y).");
assert_eq!(submit(&mut wam, "?- f(p)."), true);
assert_eq!(submit(&mut wam, "?- f(non_existent)."), false);
submit(&mut wam, "f(P, X, Y) :- call(P, X), call(P, Y).");
assert_prolog_success!(&mut wam, "?- f(p, X, Y).", ["X = x", "Y = x",
"X = y", "Y = x",
"X = x", "Y = y",
"X = y", "Y = y"]);
assert_prolog_success!(&mut wam, "?- f(p, x, Y).", ["Y = x",
"Y = y"]);
assert_prolog_success!(&mut wam, "?- f(p, X, y).", ["X = x",
"X = y"]);
assert_eq!(submit(&mut wam, "?- f(p, x, y)."), true);
assert_eq!(submit(&mut wam, "?- f(p, X, z)."), false);
assert_eq!(submit(&mut wam, "?- f(p, z, Y)."), false);
assert_prolog_success!(&mut wam, "?- call(p, X).", ["X = x",
"X = y"]);
assert_eq!(submit(&mut wam, "?- call(p, x)."), true);
assert_eq!(submit(&mut wam, "?- call(p, y)."), true);
assert_eq!(submit(&mut wam, "?- call(p, z)."), false);
submit(&mut wam, "r(f(X)) :- p(X). r(g(Y)) :- p(Y).");
assert_prolog_success!(&mut wam, "?- f(r, X, Y).",
["X = f(x)", "Y = f(x)",
"X = f(x)", "Y = f(y)",
"X = f(x)", "Y = g(x)",
"X = f(x)", "Y = g(y)",
"X = f(y)", "Y = f(x)",
"X = f(y)", "Y = f(y)",
"X = f(y)", "Y = g(x)",
"X = f(y)", "Y = g(y)",
"X = g(x)", "Y = f(x)",
"X = g(x)", "Y = f(y)",
"X = g(x)", "Y = g(x)",
"X = g(x)", "Y = g(y)",
"X = g(y)", "Y = f(x)",
"X = g(y)", "Y = f(y)",
"X = g(y)", "Y = g(x)",
"X = g(y)", "Y = g(y)"]);
assert_prolog_success!(&mut wam, "?- f(r, X, X).",
["X = f(x)",
"X = f(y)",
"X = g(x)",
"X = g(y)"]);
assert_prolog_success!(&mut wam, "?- f(r, f(X), g(Y)).",
["X = x", "Y = x",
"X = x", "Y = y",
"X = y", "Y = x",
"X = y", "Y = y"]);
assert_eq!(submit(&mut wam, "?- f(r, j(X), h(Y))."), false);
submit(&mut wam, "p(one, one). p(one, two). p(two, two).");
assert_prolog_success!(&mut wam, "?- f(p(one), X, Y).",
["X = one", "Y = one",
"X = one", "Y = two",
"X = two", "Y = two",
"X = two", "Y = one"]);
assert_prolog_success!(&mut wam, "?- f(p(one), X, X).",
["X = one",
"X = two"]);
assert_prolog_success!(&mut wam, "?- f(p(one), one, Y).",
["Y = one",
"Y = two"]);
assert_eq!(submit(&mut wam, "?- f(p(one), one, two)."), true);
assert_eq!(submit(&mut wam, "?- f(p(one), one, three)."), false);
assert_eq!(submit(&mut wam, "?- f(p(two), one, two)."), false);
assert_eq!(submit(&mut wam, "?- f(p(two), two, one)."), false);
assert_eq!(submit(&mut wam, "?- f(p(two), two, two)."), true);
assert_eq!(submit(&mut wam, "?- f(p(two), two, three)."), false);
assert_eq!(submit(&mut wam, "?- f(p(three), X, Y)."), false);
assert_eq!(submit(&mut wam, "?- f(p(three), X, X)."), false);
assert_eq!(submit(&mut wam, "?- f(p(three), one, Y)."), false);
assert_eq!(submit(&mut wam, "?- f(p(three), one, two)."), false);
assert_eq!(submit(&mut wam, "?- f(p(three), one, three)."), false);
submit(&mut wam, "f(P, X) :- call(P, X).");
assert_eq!(submit(&mut wam, "?- f(p(one), one)."), true);
assert_eq!(submit(&mut wam, "?- f(p(two), two)."), true);
assert_eq!(submit(&mut wam, "?- f(p(two), one)."), false);
assert_eq!(submit(&mut wam, "?- f(p(three), one)."), false);
assert_eq!(submit(&mut wam, "?- f(p(one), three)."), false);
assert_eq!(submit(&mut wam, "?- f(p(two), three)."), false);
submit(&mut wam, "p(f(g(X)), compound, [lists,are,good]).");
assert_prolog_success!(&mut wam, "?- call(p(f(g(X))), Y, Z).",
["Y = compound", "Z = [lists, are, good]", "X = _3"]);
submit(&mut wam, "david_lynch(coffee).
david_lynch(pie).
david_lynch(kyle(Film)) :- kyle(Film).");
submit(&mut wam, "kyle(dune).
kyle(blue_velvet).
kyle(showgirls).
kyle(flintstones).");
assert_prolog_success!(&mut wam, "?- call(david_lynch, X).",
["X = coffee",
"X = pie",
"X = kyle(dune)",
"X = kyle(blue_velvet)",
"X = kyle(showgirls)",
"X = kyle(flintstones)"]);
assert_prolog_success!(&mut wam, "?- call(david_lynch, kyle(Film)).",
["Film = dune",
"Film = blue_velvet",
"Film = showgirls",
"Film = flintstones"]);
assert_eq!(submit(&mut wam, "?- call(david_lynch, kyle(Film), _)."), false);
submit(&mut wam, "call_mult(P, X) :- call(call(P), X).");
assert_prolog_success!(&mut wam, "?- call_mult(p(X), Y).",
["Y = one", "X = one",
"Y = two", "X = one",
"Y = two", "X = two"]);
assert_prolog_success!(&mut wam, "?- call_mult(p(X), X).",
["X = one",
"X = two"]);
assert_prolog_success!(&mut wam, "?- call_mult(p(one), X).",
["X = one",
"X = two"]);
assert_prolog_success!(&mut wam, "?- call_mult(p(X), one).", ["X = one"]);
assert_eq!(submit(&mut wam, "?- call_mult(p(two), one)."), false);
assert_eq!(submit(&mut wam, "?- call_mult(p(two), two)."), true);
assert_prolog_success!(&mut wam, "?- call(call(p(one)), X), call(call(p(two)), two).",
["X = one",
"X = two"]);
assert_prolog_success!(&mut wam, "?- call(call(p(one, X))), call(call(p(two, two))).",
["X = one",
"X = two"]);
assert_eq!(submit(&mut wam, "?- call(call(p(one)), X), call(call(p(two)), one)."), false);
assert_prolog_success!(&mut wam, "?- call(call(p(X)), X), call(call(p(Y)), Y).",
["X = one", "Y = one",
"X = one", "Y = two",
"X = two", "Y = two",
"X = two", "Y = one"]);
assert_prolog_success!(&mut wam, "?- call(call(p(X)), Y), call(call(p(Y)), X).",
["X = one", "Y = one",
"X = two", "Y = two"]);
assert_prolog_success!(&mut wam, "?- call(call(p), X, Y), call(call(call(p)), X, Y).",
["X = one", "Y = one",
"Y = two", "X = one",
"Y = two", "X = two"]);
assert_prolog_success!(&mut wam, "?- call(call(p), X, Y), call(call(call(p(X))), Y).",
["X = one", "Y = one",
"Y = two", "X = one",
"Y = two", "X = two"]);
assert_eq!(submit(&mut wam, "?- call(call(p), X, Y), call(call(call(p(X))), X, Y)."), false);
assert_prolog_success!(&mut wam, "?- call(call(p), X, Y), call(call(call(p(X))), X).",
["X = one", "Y = one",
"Y = two", "X = one",
"Y = two", "X = two"]);
submit(&mut wam, "f(call(f, undefined)). f(undefined).");
submit(&mut wam, "call_var(P) :- P.");
assert_prolog_success!(&mut wam, "?- f(X), call_var(X).",
["X = call(f, undefined)"]);
assert_prolog_success!(&mut wam, "?- f(call(f, Q)), call_var(call(f, Q)).",
["Q = undefined"]);
assert_eq!(submit(&mut wam, "?- call_var(call(undefined, Q))."), false);
assert_eq!(submit(&mut wam, "?- call(call)."), false);
assert_eq!(submit(&mut wam, "?- call(call(call))."), false);
assert_eq!(submit(&mut wam, "?- call(call(call(call)))."), false);
assert_eq!(submit(&mut wam, "?- call(call(call(call(call))))."), false);
assert_eq!(submit(&mut wam, "?- call(call(call(call(call(call)))))."), false);
assert_prolog_success!(&mut wam, "?- call(call(call(call(call(call(p(X))))))).",
["X = x",
"X = y"]);
}
#[test]
fn test_queries_on_exceptions()
{
let mut wam = Machine::new();
submit(&mut wam, "f(a). f(_) :- throw(stuff).");
submit(&mut wam, "handle(stuff).");
assert_prolog_success!(&mut wam, "?- catch(f(X), E, handle(E)).",
["E = _2", "X = a",
"E = stuff", "X = _1"]);
submit(&mut wam, "f(a). f(X) :- g(X).");
submit(&mut wam, "g(x). g(y). g(z).");
submit(&mut wam, "handle(x). handle(y).");
assert_prolog_success!(&mut wam, "?- catch(f(X), X, handle(X)).",
["X = a",
"X = x",
"X = y",
"X = z"]);
assert_prolog_success!(&mut wam, "?- catch(f(a), _, handle(X)).",
["X = _4"]);
assert_eq!(submit(&mut wam, "?- catch(f(b), _, handle(X))."), false);
submit(&mut wam, "g(x). g(X) :- throw(x).");
assert_prolog_success!(&mut wam, "?- catch(f(X), x, handle(X)).",
["X = a",
"X = x",
"X = x",
"X = y"]);
assert_prolog_success!(&mut wam, "?- catch(f(X), x, handle(z)).",
["X = a",
"X = x"]);
assert_eq!(submit(&mut wam, "?- catch(f(z), x, handle(x))."), true);
assert_eq!(submit(&mut wam, "?- catch(f(z), x, handle(y))."), true);
assert_eq!(submit(&mut wam, "?- catch(f(z), x, handle(z))."), false);
submit(&mut wam, "f(X) :- throw(stuff).");
submit(&mut wam, "handle(stuff). handle(other_stuff).");
// the first 3 cases should deterministically succeed.
assert_prolog_success!(&mut wam, "?- catch(f(X), E, handle(E)).",
["X = _1", "E = stuff"]);
assert_prolog_success!(&mut wam, "?- catch(f(X), E, handle(stuff)).",
["X = _1", "E = stuff"]);
assert_prolog_success!(&mut wam, "?- catch(f(X), E, handle(other_stuff)).",
["X = _1", "E = stuff"]);
assert_eq!(submit(&mut wam, "?- catch(f(X), E, handle(not_stuff))."), false);
submit(&mut wam, "f(success). f(X) :- catch(g(X), E, handle(E)).");
submit(&mut wam, "g(g_success). g(g_success_2). g(X) :- throw(X).");
submit(&mut wam, "handle(x). handle(y). handle(z).");
assert_prolog_success!(&mut wam, "?- catch(f(X), E, E).",
["X = success", "E = _2",
"X = g_success", "E = _2",
"X = g_success_2", "E = _2",
"X = _1", "E = _2",
"X = _1", "E = _2",
"X = _1", "E = _2"]);
assert_eq!(submit(&mut wam, "?- catch(f(fail), _, _)."), false);
assert_eq!(submit(&mut wam, "?- catch(f(x), _, _)."), true);
assert_eq!(submit(&mut wam, "?- catch(f(y), _, _)."), true);
assert_eq!(submit(&mut wam, "?- catch(f(z), _, _)."), true);
submit(&mut wam, "f(success). f(E) :- catch(g(E), E, handle(E)).");
submit(&mut wam, "g(g_success). g(g_success_2). g(X) :- throw(X).");
submit(&mut wam, "handle(x). handle(y). handle(z). handle(v) :- throw(X).");
assert_prolog_success!(&mut wam, "?- catch(f(X), E, E).",
["X = success", "E = _2",
"X = g_success", "E = _2",
"X = g_success_2", "E = _2",
"X = x", "E = _2",
"X = y", "E = _2",
"X = z", "E = _2"]);
submit(&mut wam, "handle(x). handle(y). handle(z). handle(v) :- throw(handle_top(X)).");
submit(&mut wam, "handle_top(an_error_1). handle_top(an_error_2).");
assert_prolog_success!(&mut wam, "?- catch(f(X), E, E).",
["X = success", "E = _2",
"X = g_success", "E = _2",
"X = g_success_2", "E = _2",
"X = x", "E = _2",
"X = y", "E = _2",
"X = z", "E = _2",
"X = _1", "E = handle_top(an_error_1)",
"X = _1", "E = handle_top(an_error_2)"]);
submit(&mut wam, "handle(x). handle(y). handle(z). handle(v) :- throw(X).");
assert_prolog_success!(&mut wam, "?- catch(f(X), E, handle_top(E)).",
["X = success", "E = _2",
"X = g_success", "E = _2",
"X = g_success_2", "E = _2",
"X = x", "E = _2",
"X = y", "E = _2",
"X = z", "E = _2",
"E = an_error_1", "X = _1",
"E = an_error_2", "X = _1"]);
}
#[test]
fn test_queries_on_arithmetic()
{
let mut wam = Machine::new();
assert_prolog_success!(&mut wam, "?- X is 1, X is X.", ["X = 1"]);
assert_eq!(submit(&mut wam, "?- X is 1, X is X + 1."), false);
assert_prolog_success!(&mut wam, "?- X is 1, X is X + 0.", ["X = 1"]);
assert_prolog_success!(&mut wam, "?- X is 1, X is X * 1.", ["X = 1"]);
assert_eq!(submit(&mut wam, "?- X is 1, X is X * 2."), false);
assert_eq!(submit(&mut wam, "?- X is 1 + a."), false);
assert_eq!(submit(&mut wam, "?- X is 1 + Y."), false);
assert_prolog_success!(&mut wam, "?- Y is 2 + 2 - 2, X is 1 + Y, X = 3.",
["X = 3", "Y = 2"]);
assert_eq!(submit(&mut wam, "?- Y is 2 + 2 - 2, X is 1 + Y, X = 2."), false);
assert_eq!(submit(&mut wam, "?- 6 is 6."), true);
assert_eq!(submit(&mut wam, "?- 6 is 3 + 3."), true);
assert_eq!(submit(&mut wam, "?- 6 is 3 * 2."), true);
assert_eq!(submit(&mut wam, "?- 7 is 3 * 2."), false);
assert_eq!(submit(&mut wam, "?- 7 is 3.5 * 2."), false);
assert_eq!(submit(&mut wam, "?- 7.0 is 3.5 * 2."), true);
assert_eq!(submit(&mut wam, "?- 7.0 is 14 / 2."), true);
assert_eq!(submit(&mut wam, "?- 4.666 is 14.0 / 3."), false);
assert_eq!(submit(&mut wam, "?- 4.0 is 8.0 / 2."), true);
submit(&mut wam, "f(X) :- X is 5 // 0.");
assert_prolog_success!(&mut wam, "?- catch(f(X), evaluation_error(E), true), E = zero_divisor.",
["E = zero_divisor", "X = _1"]);
submit(&mut wam, "f(X) :- X is (5 rdiv 1) / 0.");
assert_prolog_success!(&mut wam, "?- catch(f(X), evaluation_error(E), true), E = zero_divisor.",
["E = zero_divisor", "X = _1"]);
submit(&mut wam, "f(X) :- X is 5.0 / 0.");
assert_prolog_success!(&mut wam, "?- catch(f(X), evaluation_error(E), true), E = zero_divisor.",
["E = zero_divisor", "X = _1"]);
assert_prolog_success!(&mut wam, "?- X is ((3 + 4) // 2) + 2 - 1 // 1, Y is 2+2, Z is X+Y.",
["Y = 4", "X = 4", "Z = 8"]);
assert_prolog_success!(&mut wam, "?- X is ((3 + 4) // 2) + 2 - 1 // 1, Y is 2+2, Z = 8, Y is 4.",
["Y = 4", "X = 4", "Z = 8"]);
assert_prolog_success!(&mut wam, "?- X is (3 rdiv 4) / 2, Y is 3 rdiv 8, X = Y.",
["X = 3/8", "Y = 3/8"]);
assert_prolog_success!(&mut wam, "?- X is 10 xor -4, X is -10.", ["X = -10"]);
assert_prolog_success!(&mut wam, "?- X is 4 xor -7, X is -3.", ["X = -3"]);
assert_prolog_success!(&mut wam, "?- X is 10 xor 5 + 55, X = 70.", ["X = 70"]);
assert_prolog_success!(&mut wam, "?- X is 10 rem -3, X = 1.", ["X = 1"]);
assert_prolog_success!(&mut wam, "?- X is 10 mod -3, X is -2.", ["X = -2"]);
}