refactor: restructure tests

Signed-off-by: Sefa Eyeoglu <contact@scrumplex.net>

tests/GZip_test.cpp

@@ -0,0 +1,56 @@
+#include <QTest>
+
+#include <GZip.h>
+#include <random>
+
+void fib(int &prev, int &cur)
+{
+    auto ret = prev + cur;
+    prev = cur;
+    cur = ret;
+}
+
+class GZipTest : public QObject
+{
+    Q_OBJECT
+private
+slots:
+
+    void test_Through()
+    {
+        // test up to 10 MB
+        static const int size = 10 * 1024 * 1024;
+        QByteArray random;
+        QByteArray compressed;
+        QByteArray decompressed;
+        std::default_random_engine eng((std::random_device())());
+        std::uniform_int_distribution<uint8_t> idis(0, std::numeric_limits<uint8_t>::max());
+
+        // initialize random buffer
+        for(int i = 0; i < size; i++)
+        {
+            random.append((char)idis(eng));
+        }
+
+        // initialize fibonacci
+        int prev = 1;
+        int cur = 1;
+
+        // test if fibonacci long random buffers pass through GZip
+        do
+        {
+            QByteArray copy = random;
+            copy.resize(cur);
+            compressed.clear();
+            decompressed.clear();
+            QVERIFY(GZip::zip(copy, compressed));
+            QVERIFY(GZip::unzip(compressed, decompressed));
+            QCOMPARE(decompressed, copy);
+            fib(prev, cur);
+        } while (cur < size);
+    }
+};
+
+QTEST_GUILESS_MAIN(GZipTest)
+
+#include "GZip_test.moc"