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diff --git a/silx/gui/widgets/test/test_boxlayoutdockwidget.py b/silx/gui/widgets/test/test_boxlayoutdockwidget.py
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+++ b/silx/gui/widgets/test/test_boxlayoutdockwidget.py
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+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 2018 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.
+#
+# ###########################################################################*/
+"""Tests for BoxLayoutDockWidget"""
+
+__authors__ = ["T. Vincent"]
+__license__ = "MIT"
+__date__ = "06/03/2018"
+
+import unittest
+
+from silx.gui.widgets.BoxLayoutDockWidget import BoxLayoutDockWidget
+from silx.gui import qt
+from silx.gui.test.utils import TestCaseQt
+
+
+class TestBoxLayoutDockWidget(TestCaseQt):
+    """Tests for BoxLayoutDockWidget"""
+
+    def setUp(self):
+        """Create and show a main window"""
+        self.window = qt.QMainWindow()
+        self.qWaitForWindowExposed(self.window)
+
+    def tearDown(self):
+        """Delete main window"""
+        self.window.setAttribute(qt.Qt.WA_DeleteOnClose)
+        self.window.close()
+        del self.window
+        self.qapp.processEvents()
+
+    def test(self):
+        """Test update of layout direction according to dock area"""
+        # Create a widget with a QBoxLayout
+        layout = qt.QBoxLayout(qt.QBoxLayout.LeftToRight)
+        layout.addWidget(qt.QLabel('First'))
+        layout.addWidget(qt.QLabel('Second'))
+        widget = qt.QWidget()
+        widget.setLayout(layout)
+
+        # Add it to a BoxLayoutDockWidget
+        dock = BoxLayoutDockWidget()
+        dock.setWidget(widget)
+
+        self.window.addDockWidget(qt.Qt.BottomDockWidgetArea, dock)
+        self.qapp.processEvents()
+        self.assertEqual(layout.direction(), qt.QBoxLayout.LeftToRight)
+
+        self.window.addDockWidget(qt.Qt.LeftDockWidgetArea, dock)
+        self.qapp.processEvents()
+        self.assertEqual(layout.direction(), qt.QBoxLayout.TopToBottom)
+
+
+def suite():
+    loader = unittest.defaultTestLoader.loadTestsFromTestCase
+    test_suite = unittest.TestSuite()
+    test_suite.addTest(loader(TestBoxLayoutDockWidget))
+    return test_suite
+
+
+if __name__ == '__main__':
+    unittest.main(defaultTest='suite')