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diff --git a/silx/gui/plot/tools/test/testScatterProfileToolBar.py b/silx/gui/plot/tools/test/testScatterProfileToolBar.py
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+++ b/silx/gui/plot/tools/test/testScatterProfileToolBar.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.
+#
+# ###########################################################################*/
+__authors__ = ["T. Vincent"]
+__license__ = "MIT"
+__date__ = "28/06/2018"
+
+
+import unittest
+import numpy
+
+from silx.gui import qt
+from silx.utils.testutils import ParametricTestCase
+from silx.gui.test.utils import TestCaseQt
+from silx.gui.plot import PlotWindow
+from silx.gui.plot.tools import profile
+import silx.gui.plot.items.roi as roi_items
+
+
+class TestScatterProfileToolBar(TestCaseQt, ParametricTestCase):
+    """Tests for ScatterProfileToolBar class"""
+
+    def setUp(self):
+        super(TestScatterProfileToolBar, self).setUp()
+        self.plot = PlotWindow()
+
+        self.profile = profile.ScatterProfileToolBar(plot=self.plot)
+
+        self.plot.addToolBar(self.profile)
+
+        self.plot.show()
+        self.qWaitForWindowExposed(self.plot)
+
+    def tearDown(self):
+        del self.profile
+        self.qapp.processEvents()
+        self.plot.setAttribute(qt.Qt.WA_DeleteOnClose)
+        self.plot.close()
+        del self.plot
+        super(TestScatterProfileToolBar, self).tearDown()
+
+    def testNoProfile(self):
+        """Test ScatterProfileToolBar without profile"""
+        self.assertEqual(self.profile.getPlotWidget(), self.plot)
+
+        # Add a scatter plot
+        self.plot.addScatter(
+            x=(0., 1., 1., 0.), y=(0., 0., 1., 1.), value=(0., 1., 2., 3.))
+        self.plot.resetZoom(dataMargins=(.1, .1, .1, .1))
+        self.qapp.processEvents()
+
+        # Check that there is no profile
+        self.assertIsNone(self.profile.getProfileValues())
+        self.assertIsNone(self.profile.getProfilePoints())
+
+    def testHorizontalProfile(self):
+        """Test ScatterProfileToolBar horizontal profile"""
+        nPoints = 8
+        self.profile.setNPoints(nPoints)
+        self.assertEqual(self.profile.getNPoints(), nPoints)
+
+        # Add a scatter plot
+        self.plot.addScatter(
+            x=(0., 1., 1., 0.), y=(0., 0., 1., 1.), value=(0., 1., 2., 3.))
+        self.plot.resetZoom(dataMargins=(.1, .1, .1, .1))
+        self.qapp.processEvents()
+
+        # Activate Horizontal profile
+        hlineAction = self.profile.actions()[0]
+        hlineAction.trigger()
+        self.qapp.processEvents()
+
+        # Set a ROI profile
+        roi = roi_items.HorizontalLineROI()
+        roi.setPosition(0.5)
+        self.profile._getRoiManager().addRoi(roi)
+
+        # Wait for async interpolator init
+        for _ in range(10):
+            self.qWait(200)
+            if not self.profile.hasPendingOperations():
+                break
+
+        self.assertIsNotNone(self.profile.getProfileValues())
+        points = self.profile.getProfilePoints()
+        self.assertEqual(len(points), nPoints)
+
+        # Check that profile has same limits than Plot
+        xLimits = self.plot.getXAxis().getLimits()
+        self.assertEqual(points[0, 0], xLimits[0])
+        self.assertEqual(points[-1, 0], xLimits[1])
+
+        # Clear the profile
+        clearAction = self.profile.actions()[-1]
+        clearAction.trigger()
+        self.qapp.processEvents()
+
+        self.assertIsNone(self.profile.getProfileValues())
+        self.assertIsNone(self.profile.getProfilePoints())
+        self.assertEqual(self.profile.getProfileTitle(), '')
+
+    def testVerticalProfile(self):
+        """Test ScatterProfileToolBar vertical profile"""
+        nPoints = 8
+        self.profile.setNPoints(nPoints)
+        self.assertEqual(self.profile.getNPoints(), nPoints)
+
+        # Add a scatter plot
+        self.plot.addScatter(
+            x=(0., 1., 1., 0.), y=(0., 0., 1., 1.), value=(0., 1., 2., 3.))
+        self.plot.resetZoom(dataMargins=(.1, .1, .1, .1))
+        self.qapp.processEvents()
+
+        # Activate vertical profile
+        vlineAction = self.profile.actions()[1]
+        vlineAction.trigger()
+        self.qapp.processEvents()
+
+        # Set a ROI profile
+        roi = roi_items.VerticalLineROI()
+        roi.setPosition(0.5)
+        self.profile._getRoiManager().addRoi(roi)
+
+        # Wait for async interpolator init
+        for _ in range(10):
+            self.qWait(200)
+            if not self.profile.hasPendingOperations():
+                break
+
+        self.assertIsNotNone(self.profile.getProfileValues())
+        points = self.profile.getProfilePoints()
+        self.assertEqual(len(points), nPoints)
+
+        # Check that profile has same limits than Plot
+        yLimits = self.plot.getYAxis().getLimits()
+        self.assertEqual(points[0, 1], yLimits[0])
+        self.assertEqual(points[-1, 1], yLimits[1])
+
+        # Check that profile limits are updated when changing limits
+        self.plot.getYAxis().setLimits(yLimits[0] + 1, yLimits[1] + 10)
+        self.qapp.processEvents()
+        yLimits = self.plot.getYAxis().getLimits()
+        points = self.profile.getProfilePoints()
+        self.assertEqual(points[0, 1], yLimits[0])
+        self.assertEqual(points[-1, 1], yLimits[1])
+
+        # Clear the plot
+        self.plot.clear()
+        self.qapp.processEvents()
+        self.assertIsNone(self.profile.getProfileValues())
+        self.assertIsNone(self.profile.getProfilePoints())
+
+    def testLineProfile(self):
+        """Test ScatterProfileToolBar line profile"""
+        nPoints = 8
+        self.profile.setNPoints(nPoints)
+        self.assertEqual(self.profile.getNPoints(), nPoints)
+
+        # Activate line profile
+        lineAction = self.profile.actions()[2]
+        lineAction.trigger()
+        self.qapp.processEvents()
+
+        # Add a scatter plot
+        self.plot.addScatter(
+            x=(0., 1., 1., 0.), y=(0., 0., 1., 1.), value=(0., 1., 2., 3.))
+        self.plot.resetZoom(dataMargins=(.1, .1, .1, .1))
+        self.qapp.processEvents()
+
+        # Set a ROI profile
+        roi = roi_items.LineROI()
+        roi.setEndPoints(numpy.array([0., 0.]), numpy.array([1., 1.]))
+        self.profile._getRoiManager().addRoi(roi)
+
+        # Wait for async interpolator init
+        for _ in range(10):
+            self.qWait(200)
+            if not self.profile.hasPendingOperations():
+                break
+
+        self.assertIsNotNone(self.profile.getProfileValues())
+        points = self.profile.getProfilePoints()
+        self.assertEqual(len(points), nPoints)
+
+
+def suite():
+    test_suite = unittest.TestSuite()
+    test_suite.addTest(
+        unittest.defaultTestLoader.loadTestsFromTestCase(
+            TestScatterProfileToolBar))
+    return test_suite
+
+
+if __name__ == '__main__':
+    unittest.main(defaultTest='suite')