Fixes in Hat and test code for it

1 files changed, 144 insertions, 0 deletions

diff --git a/sigcore/test/TestHat.cpp b/sigcore/test/TestHat.cpp
new file mode 100644
index 00000000..215744a7
--- /dev/null
+++ b/sigcore/test/TestHat.cpp
@@ -0,0 +1,144 @@
+/*
+ * Copyright 2008 Ben Boeckel <MathStuf@gmail.com>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// Header include
+#include "TestHat.h"
+
+// Qt includes
+#include <QtTest/QTest>
+
+void TestHat::initTestCase()
+{
+    qsrand(QDateTime::currentDateTime().toTime_t());
+}
+
+void TestHat::pick()
+{
+    Sigcore::Hat<int> hat;
+    
+    hat.add(0, 5);
+    hat.add(1, 4);
+    hat.add(2, 3);
+    hat.add(3, 2);
+    hat.add(4, 1);
+    
+    hat.pick();
+    
+    QCOMPARE(hat.count(), 15);
+    QCOMPARE(hat.distinctCount(), 5);
+}
+
+void TestHat::take()
+{
+    Sigcore::Hat<int> hat;
+    
+    hat.add(0, 5);
+    hat.add(1, 4);
+    hat.add(2, 3);
+    hat.add(3, 2);
+    hat.add(4, 1);
+    
+    int picked = hat.take();
+    
+    QCOMPARE(hat.count(), 14);
+    QCOMPARE(hat.count(picked), 4 - picked);
+}
+
+void TestHat::takeAndClear()
+{
+    Sigcore::Hat<int> hat;
+    
+    hat.add(0, 5);
+    hat.add(1, 4);
+    hat.add(2, 3);
+    hat.add(3, 2);
+    hat.add(4, 1);
+    
+    int picked = hat.takeAndClear();
+    
+    QCOMPARE(hat.count(), 15 - 5 + picked);
+    QCOMPARE(hat.count(picked), 0);
+}
+
+void TestHat::setCount()
+{
+    Sigcore::Hat<int> hat;
+    
+    hat.add(0, 5);
+    hat.add(1, 4);
+    hat.add(2, 3);
+    hat.add(3, 2);
+    hat.add(4, 1);
+    
+    hat.setCount(4, 3);
+    
+    QCOMPARE(hat.count(), 17);
+    QCOMPARE(hat.distinctCount(), 5);
+    
+    hat.setCount(4, 0);
+    
+    QCOMPARE(hat.count(), 14);
+    QCOMPARE(hat.distinctCount(), 4);
+    
+    hat.setCount(4, 1);
+    
+    QCOMPARE(hat.count(), 15);
+    QCOMPARE(hat.distinctCount(), 5);
+}
+
+void TestHat::add()
+{
+    Sigcore::Hat<int> hat;
+    
+    hat.add(0, 5);
+    hat.add(1, 4);
+    hat.add(2, 3);
+    hat.add(3, 2);
+    hat.add(4, 1);
+    
+    hat.add(4, 3);
+    
+    QCOMPARE(hat.count(), 18);
+    QCOMPARE(hat.distinctCount(), 5);
+    
+    hat.add(4, -3);
+    
+    QCOMPARE(hat.count(), 15);
+    QCOMPARE(hat.distinctCount(), 5);
+    
+    hat.add(4, -2);
+    
+    QCOMPARE(hat.count(), 14);
+    QCOMPARE(hat.distinctCount(), 4);
+}
+
+void TestHat::chance()
+{
+    Sigcore::Hat<int> hat;
+    
+    hat.add(0, 5);
+    hat.add(1, 4);
+    hat.add(2, 3);
+    hat.add(3, 2);
+    hat.add(4, 1);
+    
+    int picked = hat.pick();
+    
+    QCOMPARE(double(hat.chance(picked)), (5 - picked) / 15.);
+}
+
+QTEST_APPLESS_MAIN(TestHat)