diff --git a/.appveyor.yml b/.appveyor.yml
@@ -1,6 +1,6 @@
 build: false
 
-os: Visual Studio 2015
+os: Visual Studio 2019
 
 platform:
   - x64

diff --git a/.azure-pipelines/azure-pipelines-linux-clang.yml b/.azure-pipelines/azure-pipelines-linux-clang.yml
diff --git a/.azure-pipelines/azure-pipelines-linux-gcc.yml b/.azure-pipelines/azure-pipelines-linux-gcc.yml
diff --git a/.azure-pipelines/azure-pipelines-osx.yml b/.azure-pipelines/azure-pipelines-osx.yml
diff --git a/.azure-pipelines/unix-build.yml b/.azure-pipelines/unix-build.yml
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
diff --git a/test_python/main.cpp b/test_python/main.cpp
@@ -24,6 +24,11 @@ using complex_t = std::complex<double>;
 
 // Examples
 
+auto argmin(xt::pyarray<int>& m)
+{
+    return xt::argmin(m);
+}
+
 double example1(xt::pyarray<double>& m)
 {
     return m(0);
@@ -291,6 +296,7 @@ PYBIND11_MODULE(xtensor_python_test, m)
 
     m.doc() = "Test module for xtensor python bindings";
 
+    m.def("argmin", argmin);
     m.def("example1", example1);
     m.def("example2", example2);
     m.def("example3_xarray", example3_xarray);

diff --git a/test_python/test_pyarray.py b/test_python/test_pyarray.py
@@ -27,6 +27,9 @@ class XtensorTest(TestCase):
     def test_rm(self):
         xt.test_rm(np.array([10], dtype=int))
 
+    def test_argmin(self):
+        self.assertEqual(1, xt.argmin([7, 5, 6]))
+
     def test_example1(self):
         self.assertEqual(4, xt.example1([4, 5, 6]))