1 files changed, 67 insertions, 0 deletions
diff --git a/test/smallvectors.cpp b/test/smallvectors.cpp
new file mode 100644
index 000000000..781511397
--- /dev/null
+++ b/test/smallvectors.cpp
@@ -0,0 +1,67 @@
+// This file is part of Eigen, a lightweight C++ template library
+// for linear algebra.
+//
+// Copyright (C) 2006-2008 Benoit Jacob <jacob.benoit.1@gmail.com>
+//
+// This Source Code Form is subject to the terms of the Mozilla
+// Public License v. 2.0. If a copy of the MPL was not distributed
+// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+#define EIGEN_NO_STATIC_ASSERT
+#include "main.h"
+
+template<typename Scalar> void smallVectors()
+{
+  typedef Matrix<Scalar, 1, 2> V2;
+  typedef Matrix<Scalar, 3, 1> V3;
+  typedef Matrix<Scalar, 1, 4> V4;
+  typedef Matrix<Scalar, Dynamic, 1> VX;
+  Scalar x1 = internal::random<Scalar>(),
+         x2 = internal::random<Scalar>(),
+         x3 = internal::random<Scalar>(),
+         x4 = internal::random<Scalar>();
+  V2 v2(x1, x2);
+  V3 v3(x1, x2, x3);
+  V4 v4(x1, x2, x3, x4);
+  VERIFY_IS_APPROX(x1, v2.x());
+  VERIFY_IS_APPROX(x1, v3.x());
+  VERIFY_IS_APPROX(x1, v4.x());
+  VERIFY_IS_APPROX(x2, v2.y());
+  VERIFY_IS_APPROX(x2, v3.y());
+  VERIFY_IS_APPROX(x2, v4.y());
+  VERIFY_IS_APPROX(x3, v3.z());
+  VERIFY_IS_APPROX(x3, v4.z());
+  VERIFY_IS_APPROX(x4, v4.w());
+
+  if (!NumTraits<Scalar>::IsInteger)
+  {
+    VERIFY_RAISES_ASSERT(V3(2, 1))
+    VERIFY_RAISES_ASSERT(V3(3, 2))
+    VERIFY_RAISES_ASSERT(V3(Scalar(3), 1))
+    VERIFY_RAISES_ASSERT(V3(3, Scalar(1)))
+    VERIFY_RAISES_ASSERT(V3(Scalar(3), Scalar(1)))
+    VERIFY_RAISES_ASSERT(V3(Scalar(123), Scalar(123)))
+
+    VERIFY_RAISES_ASSERT(V4(1, 3))
+    VERIFY_RAISES_ASSERT(V4(2, 4))
+    VERIFY_RAISES_ASSERT(V4(1, Scalar(4)))
+    VERIFY_RAISES_ASSERT(V4(Scalar(1), 4))
+    VERIFY_RAISES_ASSERT(V4(Scalar(1), Scalar(4)))
+    VERIFY_RAISES_ASSERT(V4(Scalar(123), Scalar(123)))
+
+    VERIFY_RAISES_ASSERT(VX(3, 2))
+    VERIFY_RAISES_ASSERT(VX(Scalar(3), 1))
+    VERIFY_RAISES_ASSERT(VX(3, Scalar(1)))
+    VERIFY_RAISES_ASSERT(VX(Scalar(3), Scalar(1)))
+    VERIFY_RAISES_ASSERT(VX(Scalar(123), Scalar(123)))
+  }
+}
+
+void test_smallvectors()
+{
+  for(int i = 0; i < g_repeat; i++) {
+    CALL_SUBTEST(smallVectors<int>() );
+    CALL_SUBTEST(smallVectors<float>() );
+    CALL_SUBTEST(smallVectors<double>() );
+  }
+}