1 files changed, 22 insertions, 0 deletions
diff --git a/unsupported/test/cxx11_tensor_io.cpp b/unsupported/test/cxx11_tensor_io.cpp
index 8bbcf7089..489960529 100644
--- a/unsupported/test/cxx11_tensor_io.cpp
+++ b/unsupported/test/cxx11_tensor_io.cpp
@@ -14,6 +14,20 @@
 
 
 template<int DataLayout>
+static void test_output_0d()
+{
+  Tensor<int, 0, DataLayout> tensor;
+  tensor() = 123;
+
+  std::stringstream os;
+  os << tensor;
+
+  std::string expected("123");
+  VERIFY_IS_EQUAL(std::string(os.str()), expected);
+}
+
+
+template<int DataLayout>
 static void test_output_1d()
 {
   Tensor<int, 1, DataLayout> tensor(5);
@@ -26,6 +40,12 @@ static void test_output_1d()
 
   std::string expected("0\n1\n2\n3\n4");
   VERIFY_IS_EQUAL(std::string(os.str()), expected);
+
+  Eigen::Tensor<double,1,DataLayout> empty_tensor(0);
+  std::stringstream empty_os;
+  empty_os << empty_tensor;
+  std::string empty_string;
+  VERIFY_IS_EQUAL(std::string(empty_os.str()), empty_string);
 }
 
 
@@ -101,6 +121,8 @@ static void test_output_const()
 
 void test_cxx11_tensor_io()
 {
+  CALL_SUBTEST(test_output_0d<ColMajor>());
+  CALL_SUBTEST(test_output_0d<RowMajor>());
   CALL_SUBTEST(test_output_1d<ColMajor>());
   CALL_SUBTEST(test_output_1d<RowMajor>());
   CALL_SUBTEST(test_output_2d<ColMajor>());