Add a unit test for lime unit-testing lib

It's stupid noone did this before.

Author: e1himself

test/unit/test/limeTestTest.php

@@ -0,0 +1,38 @@
+<?php
+
+require_once(__DIR__.'/../../bootstrap/unit.php');
+
+$t = new lime_test(23);
+
+$t->comment('A. Equal numbers');
+$t->is(1, 1);
+$t->is(2, 2);
+$t->is(-100, -100);
+$t->is(0, 0);
+
+$t->comment('B. Equal strings');
+$t->is('', '');
+$t->is('A', 'A');
+$t->is('aaa', 'aaa');
+$t->is("\0", "\0");
+
+$t->comment('C. Equivalent number <-> strings');
+$t->is('0', 0);
+$t->is('1', 1);
+$t->is('-1', -1);
+$t->is('10000000.0', 10000000.0);
+
+$t->comment('D. Not equal numbers');
+$t->isnt(10, 1);
+$t->isnt(-2, 2);
+$t->isnt(100, 100.1);
+$t->isnt(0, -1);
+$t->isnt(-2, 'Hello');
+$t->isnt(100, array(100));
+
+$t->comment('E. Equivalent falsy');
+$t->is(0, false);
+$t->is(0, null);
+$t->is('', 0);
+$t->is(false, null);
+$t->is(array(), null);