1 files changed, 83 insertions, 0 deletions
diff --git a/src/math/test/geometry_test.cpp b/src/math/test/geometry_test.cpp
new file mode 100644
index 0000000..9082e3e
--- /dev/null
+++ b/src/math/test/geometry_test.cpp
@@ -0,0 +1,83 @@
+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
+// *
+// * 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/.
+
+// math/test/geometry_test.cpp
+
+/* Unit tests for functions in geometry.h */
+
+#include "../func.h"
+#include "../geometry.h"
+
+#include <cstdio>
+
+using namespace std;
+
+const float TEST_TOLERANCE = 1e-5;
+
+// Test for rewritten function RotateAngle()
+int TestRotateAngle()
+{
+  if (! Math::IsEqual(Math::RotateAngle(0.0f, 0.0f), 0.0f, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(1.0f, 0.0f), 0.0f, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(1.0f, 1.0f), 0.25f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(0.0f, 2.0f), 0.5f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(-0.5f, 0.5f), 0.75f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(-1.0f, 0.0f), Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(-1.0f, -1.0f), 1.25f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(0.0f, -2.0f), 1.5f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  if (! Math::IsEqual(Math::RotateAngle(1.0f, -1.0f), 1.75f * Math::PI, TEST_TOLERANCE))
+    return __LINE__;
+
+  return 0;
+}
+
+int main()
+{
+  // Functions to test
+  int (*TESTS[])() =
+  {
+    TestRotateAngle
+  };
+  const int TESTS_SIZE = sizeof(TESTS) / sizeof(*TESTS);
+
+  int result = 0;
+  for (int i = 0; i < TESTS_SIZE; ++i)
+  {
+    result = TESTS[i]();
+    if (result != 0)
+      return result;
+  }
+
+  fprintf(stderr, "All tests successful\n");
+
+  return 0;
+}