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diff --git a/tests/test_generator.h b/tests/test_generator.h
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+/*
+ * Sudoku: A plug-in for the Video Disk Recorder
+ *
+ * Copyright (C) 2010, Thomas Günther <tom@toms-cafe.de>
+ *
+ * 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 2 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, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <cxxtest/TestSuite.h>
+#include "../generator.h"
+#include "../solver.h"
+
+using namespace Sudoku;
+
+class Test_Generator : public CxxTest::TestSuite
+{
+public:
+  void test_GenerateSymmetricSudoku()
+  {
+    // Generate a random Sudoku with 36 symmetric givens.
+    Puzzle puzzle;
+    Generator generator(puzzle, 36);
+    generator.find_next_solution();
+    TS_ASSERT(generator.solution_is_valid());
+
+    // Solve the generated Sudoku.
+    Solver solver(puzzle);
+    solver.find_next_solution();
+    TS_ASSERT(solver.solution_is_valid());
+    solver.find_next_solution();
+    bool only_one_solution = !solver.solution_is_valid();
+    TS_ASSERT(only_one_solution);
+  }
+
+  void test_GenerateNonSymmetricSudoku()
+  {
+    // Generate a random Sudoku with 26 non-symmetric givens.
+    Puzzle puzzle;
+    Generator generator(puzzle, 26, false);
+    generator.find_next_solution();
+    TS_ASSERT(generator.solution_is_valid());
+
+    // Solve the generated Sudoku.
+    Solver solver(puzzle);
+    solver.find_next_solution();
+    TS_ASSERT(solver.solution_is_valid());
+    solver.find_next_solution();
+    bool only_one_solution = !solver.solution_is_valid();
+    TS_ASSERT(only_one_solution);
+  }
+};