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/* testfunctions.vala
*
* Copyright (C) 2010 Maciej Piechotka
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Maciej Piechotka <uzytkownik2@gmail.com>
*/
public class FunctionsTests : Gee.TestCase {
public FunctionsTests () {
base ("Functions");
add_test ("[Functions] comparing and hashing strings", test_string_func);
add_test ("[Functions] comparing and hashing int", test_int_func);
add_test ("[Functions] comparing instances of Comparable", test_compare_func);
add_test ("[Functions] comparing and hashing instances of Hashable", test_hash_func);
add_test ("[Iterator] unfold", test_unfold);
add_test ("[Iterator] concat", test_concat);
}
public void test_string_func () {
string one = "one";
string two = "two";
string two_copy = two.dup ();
Gee.EqualDataFunc<string> eq = Gee.Functions.get_equal_func_for (typeof (string));
CompareDataFunc<string> cmp = Gee.Functions.get_compare_func_for (typeof (string));
Gee.HashDataFunc<string> hash = Gee.Functions.get_hash_func_for (typeof (string));
assert (eq != null);
assert (cmp != null);
assert (hash != null);
assert (eq (two, two));
assert (cmp (two, two) == 0);
assert (hash (two) == hash (two));
assert (eq (two, two_copy));
assert (cmp (two, two_copy) == 0);
assert (hash (two) == hash (two_copy));
assert (!eq (one, two));
assert (cmp (one, two) < 0);
assert (!eq (two, one));
assert (cmp (two, one) > 0);
}
public void test_int_func () {
int one = 1;
int two = 2;
Gee.EqualDataFunc<int> eq = Gee.Functions.get_equal_func_for (typeof (int));
CompareDataFunc<int> cmp = Gee.Functions.get_compare_func_for (typeof (int));
Gee.HashDataFunc<int> hash = Gee.Functions.get_hash_func_for (typeof (int));
assert (eq != null);
assert (cmp != null);
assert (hash != null);
assert (eq (two, two));
assert (cmp (two, two) == 0);
assert (hash (two) == hash (two));
assert (!eq (one, two));
assert (cmp (one, two) < 0);
assert (!eq (two, one));
assert (cmp (two, one) > 0);
}
public void test_compare_func () {
MyComparable two = new MyComparable(2);
MyComparable one = new MyComparable(1);
MyComparable two_copy = new MyComparable(2);
Gee.EqualDataFunc<MyComparable> eq = Gee.Functions.get_equal_func_for (typeof (MyComparable));
CompareDataFunc<MyComparable> cmp = Gee.Functions.get_compare_func_for (typeof (MyComparable));
//Gee.HashDataFunc hash = Gee.Functions.get_hash_func_for (typeof (MyComparable));
assert (eq != null);
assert (cmp != null);
//assert (hash != null);
assert (eq (two, two));
assert (cmp (two, two) == 0);
//assert (hash (two) == hash (two));
assert (eq (two, two_copy));
assert (cmp (two, two_copy) == 0);
//assert (hash (two) == hash (two_copy));
assert (!eq (one, two));
assert (cmp (one, two) < 0);
assert (!eq (two, one));
assert (cmp (two, one) > 0);
}
public void test_hash_func () {
MyHashable two = new MyHashable(2);
MyHashable one = new MyHashable(1);
MyHashable two_copy = new MyHashable(2);
MyHashable minus_one = new MyHashable(-1);
MyHashable minus_one2 = new MyHashable(-1);
Gee.EqualDataFunc<MyHashable> eq = Gee.Functions.get_equal_func_for (typeof (MyHashable));
CompareDataFunc<MyHashable> cmp = Gee.Functions.get_compare_func_for (typeof (MyHashable));
Gee.HashDataFunc<MyHashable> hash = Gee.Functions.get_hash_func_for (typeof (MyHashable));
assert (eq != null);
assert (cmp != null);
assert (hash != null);
assert (eq (two, two));
assert (cmp (two, two) == 0);
assert (hash (two) == hash (two));
assert (eq (two, two_copy));
assert (cmp (two, two_copy) == 0);
assert (hash (two) == hash (two_copy));
assert (!eq (one, two));
assert (cmp (one, two) < 0);
assert (!eq (two, one));
assert (cmp (two, one) > 0);
// Check if correct functions taken
assert (hash (one) == 1);
assert (!eq (minus_one, minus_one2));
}
public void test_unfold () {
int i = 0;
int j = -1;
var iter = Gee.Iterator.unfold<int> (() => {
assert (j + 1 == i);
if (i == 10)
return null;
int k = i++;
return new Gee.Lazy<int> (() => {
assert (k + 1 == i);
j = k;
return k;
});
});
int k = 0;
while (iter.next ()) {
assert (iter.get () == k);
assert (iter.get () == k);
k++;
}
assert (k == 10);
}
public void test_concat () {
int i = 0;
var iter_ = Gee.Iterator.unfold<Gee.Iterator<int>> (() => {
if (i >= 3)
return null;
int j = i++*3;
int start = j;
var iter = Gee.Iterator.unfold<int> (() => {
if (j == start + 3)
return null;
return new Gee.Lazy<int>.from_value (j++);
});
return new Gee.Lazy<Gee.Iterator<int>>.from_value (iter);
});
int j = 0;
var iter = Gee.Iterator.concat<int> (iter_);
while (iter.next()) {
assert (j == iter.get ());
assert (j == iter.get ());
j++;
}
assert (i == 3);
assert (j == 9);
}
private class MyComparable : GLib.Object, Gee.Comparable<MyComparable> {
public MyComparable (int i) {
this.i = i;
}
public int compare_to (MyComparable cmp) {
if (i == cmp.i)
return 0;
else if (i >= cmp.i)
return 1;
else
return -1;
}
int i;
}
private class MyHashable : GLib.Object, Gee.Comparable<MyHashable>, Gee.Hashable<MyHashable> {
public MyHashable (int i) {
this.i = i;
}
public int compare_to (MyHashable cmp) {
if (i == cmp.i)
return 0;
else if (i >= cmp.i)
return 1;
else
return -1;
}
public uint hash () {
return i;
}
public bool equal_to (MyHashable hash) {
// -1 break API but it is used for checks
return i == hash.i && i != -1;
}
int i;
}
}
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