lean2/src/tests/util/list.cpp

/*
Copyright (c) 2013 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.

Author: Leonardo de Moura
*/
#include <vector>
#include "list.h"
#include "test.h"
using namespace lean;

static void tst1() {
    list<int> l;
    lean_assert(is_nil(l));
    for (int i = 0; i < 10; i++) {
        list<int> old = l;
        l = list<int>(i, l);
        lean_assert(!is_nil(l));
        lean_assert(car(l) == i);
        lean_assert(is_eqp(cdr(l), old));
    }
    std::cout << l << "\n";
}

static void tst2() {
    std::vector<int> a{10, 20, 30};
    list<int> l = copy_to_list(a.begin(), a.end());
    std::cout << l << "\n";
    lean_assert(head(l) == 10);
    lean_assert(head(tail(l)) == 20);
    lean_assert(head(tail(tail(l))) == 30);
    lean_assert(length(l) == 3);
}

static void tst3() {
    int a[3] = {10, 20, 30};
    list<int> l = copy_to_list<int*, int>(a, a+3);
    std::cout << l << "\n";
    lean_assert(head(l) == 10);
    lean_assert(head(tail(l)) == 20);
    lean_assert(head(tail(tail(l))) == 30);
    lean_assert(length(l) == 3);
    lean_assert(length(list<int>()) == 0);
    lean_assert(length(list<int>(10, list<int>())) == 1);
    lean_assert(length(tail(list<int>(10, list<int>()))) == 0);
}

static void tst4() {
    list<int> l1{1, 2, 3};
    list<int> l2{1, 2, 3};
    lean_assert(l1 == l2);
    lean_assert(l1 != cons(1, l2));
    lean_assert(l1 != tail(l1));
    lean_assert(list<int>() == list<int>());
    lean_assert(l2 != list<int>());
    lean_assert(l1 != list<int>({1, 2, 3, 4}));
    lean_assert(l1 != tail(list<int>{1, 2, 3, 4}));
}

int main() {
    tst1();
    tst2();
    tst3();
    tst4();
    return has_violations() ? 1 : 0;
}