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diff --git a/src/silx/io/test/test_rawh5.py b/src/silx/io/test/test_rawh5.py
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+++ b/src/silx/io/test/test_rawh5.py
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+# /*##########################################################################
+#
+# Copyright (c) 2016 European Synchrotron Radiation Facility
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+# ###########################################################################*/
+"""Test for silx.gui.hdf5 module"""
+
+__authors__ = ["V. Valls"]
+__license__ = "MIT"
+__date__ = "21/09/2017"
+
+
+import unittest
+import tempfile
+import numpy
+import shutil
+from .. import rawh5
+
+
+class TestNumpyFile(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls):
+        cls.tmpDirectory = tempfile.mkdtemp()
+
+    @classmethod
+    def tearDownClass(cls):
+        shutil.rmtree(cls.tmpDirectory)
+
+    def testNumpyFile(self):
+        filename = "%s/%s.npy" % (self.tmpDirectory, self.id())
+        c = numpy.random.rand(5, 5)
+        numpy.save(filename, c)
+        h5 = rawh5.NumpyFile(filename)
+        self.assertIn("data", h5)
+        self.assertEqual(h5["data"].dtype.kind, "f")
+
+    def testNumpyZFile(self):
+        filename = "%s/%s.npz" % (self.tmpDirectory, self.id())
+        a = numpy.array("aaaaa")
+        b = numpy.array([1, 2, 3, 4])
+        c = numpy.random.rand(5, 5)
+        d = numpy.array(b"aaaaa")
+        e = numpy.array("i \u2661 my mother")
+        numpy.savez(filename, a, b=b, c=c, d=d, e=e)
+        h5 = rawh5.NumpyFile(filename)
+        self.assertIn("arr_0", h5)
+        self.assertIn("b", h5)
+        self.assertIn("c", h5)
+        self.assertIn("d", h5)
+        self.assertIn("e", h5)
+        self.assertEqual(h5["arr_0"].dtype.kind, "U")
+        self.assertEqual(h5["b"].dtype.kind, "i")
+        self.assertEqual(h5["c"].dtype.kind, "f")
+        self.assertEqual(h5["d"].dtype.kind, "S")
+        self.assertEqual(h5["e"].dtype.kind, "U")
+
+    def testNumpyZFileContainingDirectories(self):
+        filename = "%s/%s.npz" % (self.tmpDirectory, self.id())
+        data = {}
+        data["a/b/c"] = numpy.arange(10)
+        data["a/b/e"] = numpy.arange(10)
+        numpy.savez(filename, **data)
+        h5 = rawh5.NumpyFile(filename)
+        self.assertIn("a/b/c", h5)
+        self.assertIn("a/b/e", h5)