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diff --git a/src/silx/gui/plot/test/testUtilsAxis.py b/src/silx/gui/plot/test/testUtilsAxis.py
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+++ b/src/silx/gui/plot/test/testUtilsAxis.py
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+# coding: utf-8
+# /*##########################################################################
+#
+# 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.
+#
+# ###########################################################################*/
+"""Basic tests for PlotWidget"""
+
+__authors__ = ["V. Valls"]
+__license__ = "MIT"
+__date__ = "20/11/2018"
+
+
+import unittest
+from silx.gui.plot import PlotWidget
+from silx.gui.utils.testutils import TestCaseQt
+from silx.gui.plot.utils.axis import SyncAxes
+
+
+class TestAxisSync(TestCaseQt):
+    """Tests AxisSync class"""
+
+    def setUp(self):
+        TestCaseQt.setUp(self)
+        self.plot1 = PlotWidget()
+        self.plot2 = PlotWidget()
+        self.plot3 = PlotWidget()
+
+    def tearDown(self):
+        self.plot1 = None
+        self.plot2 = None
+        self.plot3 = None
+        TestCaseQt.tearDown(self)
+
+    def testMoveFirstAxis(self):
+        """Test synchronization after construction"""
+        _sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+
+        self.plot1.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testMoveSecondAxis(self):
+        """Test synchronization after construction"""
+        _sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+
+        self.plot2.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testMoveTwoAxes(self):
+        """Test synchronization after construction"""
+        _sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+
+        self.plot1.getXAxis().setLimits(1, 50)
+        self.plot2.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testDestruction(self):
+        """Test synchronization when sync object is destroyed"""
+        sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+        del sync
+
+        self.plot1.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertNotEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertNotEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testAxisDestruction(self):
+        """Test synchronization when an axis disappear"""
+        _sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+
+        # Destroy the plot is possible
+        import weakref
+        plot = weakref.ref(self.plot2)
+        self.plot2 = None
+        result = self.qWaitForDestroy(plot)
+        if not result:
+            # We can't test
+            self.skipTest("Object not destroyed")
+
+        self.plot1.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testStop(self):
+        """Test synchronization after calling stop"""
+        sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+        sync.stop()
+
+        self.plot1.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertNotEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertNotEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testStopMovingStart(self):
+        """Test synchronization after calling stop, moving an axis, then start again"""
+        sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+        sync.stop()
+        self.plot1.getXAxis().setLimits(10, 500)
+        self.plot2.getXAxis().setLimits(1, 50)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        sync.start()
+
+        # The first axis is the reference
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testDoubleStop(self):
+        """Test double stop"""
+        sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+        sync.stop()
+        self.assertRaises(RuntimeError, sync.stop)
+
+    def testDoubleStart(self):
+        """Test double stop"""
+        sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+        self.assertRaises(RuntimeError, sync.start)
+
+    def testScale(self):
+        """Test scale change"""
+        _sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+        self.plot1.getXAxis().setScale(self.plot1.getXAxis().LOGARITHMIC)
+        self.assertEqual(self.plot1.getXAxis().getScale(), self.plot1.getXAxis().LOGARITHMIC)
+        self.assertEqual(self.plot2.getXAxis().getScale(), self.plot1.getXAxis().LOGARITHMIC)
+        self.assertEqual(self.plot3.getXAxis().getScale(), self.plot1.getXAxis().LOGARITHMIC)
+
+    def testDirection(self):
+        """Test direction change"""
+        _sync = SyncAxes([self.plot1.getYAxis(), self.plot2.getYAxis(), self.plot3.getYAxis()])
+        self.plot1.getYAxis().setInverted(True)
+        self.assertEqual(self.plot1.getYAxis().isInverted(), True)
+        self.assertEqual(self.plot2.getYAxis().isInverted(), True)
+        self.assertEqual(self.plot3.getYAxis().isInverted(), True)
+
+    def testSyncCenter(self):
+        """Test direction change"""
+        # Not the same scale
+        self.plot1.getXAxis().setLimits(0, 200)
+        self.plot2.getXAxis().setLimits(0, 20)
+        self.plot3.getXAxis().setLimits(0, 2)
+        _sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()],
+                         syncLimits=False, syncCenter=True)
+
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (0, 200))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (100 - 10, 100 + 10))
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (100 - 1, 100 + 1))
+
+    def testSyncCenterAndZoom(self):
+        """Test direction change"""
+        # Not the same scale
+        self.plot1.getXAxis().setLimits(0, 200)
+        self.plot2.getXAxis().setLimits(0, 20)
+        self.plot3.getXAxis().setLimits(0, 2)
+        _sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()],
+                         syncLimits=False, syncCenter=True, syncZoom=True)
+
+        # Supposing all the plots use the same size
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (0, 200))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (0, 200))
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (0, 200))
+
+    def testAddAxis(self):
+        """Test synchronization after construction"""
+        sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis()])
+        sync.addAxis(self.plot3.getXAxis())
+
+        self.plot1.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot3.getXAxis().getLimits(), (10, 500))
+
+    def testRemoveAxis(self):
+        """Test synchronization after construction"""
+        sync = SyncAxes([self.plot1.getXAxis(), self.plot2.getXAxis(), self.plot3.getXAxis()])
+        sync.removeAxis(self.plot3.getXAxis())
+
+        self.plot1.getXAxis().setLimits(10, 500)
+        self.assertEqual(self.plot1.getXAxis().getLimits(), (10, 500))
+        self.assertEqual(self.plot2.getXAxis().getLimits(), (10, 500))
+        self.assertNotEqual(self.plot3.getXAxis().getLimits(), (10, 500))