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//
// Copyright 2016 Garrett D'Amore <garrett@damore.org>
//
// This software is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
#include "core/list.c"
#include "convey.h"
typedef struct {
int pad[2];
nni_list_node nodea;
nni_list_node nodeb;
} mystruct;
TestMain("Linked Lists", {
Convey("Given a couple lists", {
nni_list alist;
nni_list blist;
NNI_LIST_INIT(&alist, mystruct, nodea);
NNI_LIST_INIT(&blist, mystruct, nodeb);
So(alist.ll_offset == 8);
So(blist.ll_offset == (8 + sizeof (nni_list_node)));
Convey("The list starts empty", {
So(nni_list_first(&alist) == NULL);
So(nni_list_last(&blist) == NULL);
});
Convey("And we can add an item", {
mystruct item;
NNI_LIST_NODE_INIT(&item.nodea);
NNI_LIST_NODE_INIT(&item.nodeb);
nni_list_append(&alist, &item);
Convey("It is the first item", {
So(nni_list_first(&alist) == &item);
});
Convey("It is the last item", {
So(nni_list_last(&alist) == &item);
});
Convey("It is the only item", {
So(nni_list_next(&alist, &item) == NULL);
So(nni_list_prev(&alist, &item) == NULL);
});
Convey("It isn't on the other list", {
So(nni_list_first(&blist) == NULL);
So(nni_list_last(&blist) == NULL);
});
Convey("We can remove it", {
nni_list_remove(&alist, &item);
So(nni_list_first(&alist) == NULL);
So(nni_list_last(&alist) == NULL);
});
});
Convey("We can add two items", {
mystruct item1;
mystruct item2;
NNI_LIST_NODE_INIT(&item1.nodea);
NNI_LIST_NODE_INIT(&item1.nodeb);
NNI_LIST_NODE_INIT(&item2.nodea);
NNI_LIST_NODE_INIT(&item2.nodeb);
nni_list_append(&alist, &item1);
nni_list_append(&alist, &item2);
So(nni_list_first(&alist) == &item1);
So(nni_list_last(&alist) == &item2);
So(nni_list_next(&alist, &item1) == &item2);
So(nni_list_prev(&alist, &item2) == &item1);
So(nni_list_next(&alist, &item2) == NULL);
So(nni_list_prev(&alist, &item1) == NULL);
Convey("Removing the first works", {
nni_list_remove(&alist, &item1);
So(nni_list_first(&alist) == &item2);
So(nni_list_last(&alist) == &item2);
So(nni_list_next(&alist, &item2) == NULL);
So(nni_list_prev(&alist, &item2) == NULL);
});
Convey("Removing the second works", {
nni_list_remove(&alist, &item2);
So(nni_list_first(&alist) == &item1);
So(nni_list_last(&alist) == &item1);
So(nni_list_next(&alist, &item1) == NULL);
So(nni_list_prev(&alist, &item1) == NULL);
});
});
});
})
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