Implemented C++ test case (still working) using HDF5 interface

bob/io/base/test.cpp

@@ -8,26 +8,55 @@
 #include <bob.io.base/api.h>
 #include <bob.extension/documentation.h>
 
+#include <boost/format.hpp>
+#include <boost/filesystem.hpp>
+
 static auto s_test_api = bob::extension::FunctionDoc(
   "_test_api",
   "Some tests for API functions"
 )
-.add_prototype("");
-
-static PyObject* _test_api(PyObject*){
+.add_prototype("tempdir")
+.add_parameter("tempdir", "str", "A temporary directory to write data to")
+;
+static PyObject* _test_api(PyObject*, PyObject *args, PyObject* kwds){
 BOB_TRY
+  static char** kwlist = s_test_api.kwlist();
+
+  const char* tempdir;
+  if (!PyArg_ParseTupleAndKeywords(args, kwds, "s", kwlist, &tempdir)) return 0;
+
+  blitz::Array<uint8_t, 1> test_data(5);
+  for (int i = 0; i < 5; ++i){
+    test_data(i) = i+1;
+  }
+
+  auto h5file = bob::io::base::CodecRegistry::instance()->findByExtension(".hdf5");
+
+  boost::filesystem::path hdf5(tempdir); hdf5 /= std::string("test.h5");
+
+  auto output = h5file(hdf5.string().c_str(), 'w');
+  output->write(test_data);
+  output.reset();
+
+  auto input = h5file(hdf5.string().c_str(), 'r');
+  blitz::Array<uint8_t,1> read_data = input->read<uint8_t,1>(0);
+  input.reset();
+
+  if (blitz::any(test_data - read_data))
+    throw std::runtime_error("The CSV IO test did not succeed");
+
   Py_RETURN_NONE;
 BOB_CATCH_FUNCTION("_test_api", 0)
 }
 
 static PyMethodDef module_methods[] = {
-    {
-      s_test_api.name(),
-      (PyCFunction)_test_api,
-      METH_NOARGS,
-      s_test_api.doc(),
-    },
-    {0}  /* Sentinel */
+  {
+    s_test_api.name(),
+    (PyCFunction)_test_api,
+    METH_VARARGS|METH_KEYWORDS,
+    s_test_api.doc(),
+  },
+  {0}  /* Sentinel */
 };
 
 PyDoc_STRVAR(module_docstr, "Tests for bob::io::base");

bob/io/base/test_cpp.py

-from ._test import _test_api
+from bob.io.base._test import _test_api
 
-def test_cpp():
-  _test_api()
+import tempfile
+import shutil
+
+def test_api():
+  temp_dir = tempfile.mkdtemp()
+  try:
+    _test_api(temp_dir)
+  finally:
+    shutil.rmtree(temp_dir)