text: # coding: utf-8
  # /*##########################################################################
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  # Copyright (c) 2016-2018 European Synchrotron Radiation Facility
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  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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  __authors__ = ["V. Valls"]
  __license__ = "MIT"
  __date__ = "23/04/2018"
  
  import os
  import tempfile
  import unittest
  from contextlib import contextmanager
  
  import numpy
  from ..DataViewer import DataViewer
  from ..DataViews import DataView
  from .. import DataViews
  
  from silx.gui import qt
  
  from silx.gui.data.DataViewerFrame import DataViewerFrame
  from silx.gui.test.utils import SignalListener
  from silx.gui.test.utils import TestCaseQt
  
  try:
      import h5py
  except ImportError:
      h5py = None
  
  
  class _DataViewMock(DataView):
      """Dummy view to display nothing"""
  
      def __init__(self, parent):
          DataView.__init__(self, parent)
  
      def axesNames(self, data, info):
          return []
  
      def createWidget(self, parent):
          return qt.QLabel(parent)
  
      def getDataPriority(self, data, info):
          return 0
  
  
  class AbstractDataViewerTests(TestCaseQt):
  
      def create_widget(self):
          # Avoid to raise an error when testing the full module
          self.skipTest("Not implemented")
  
      @contextmanager
      def h5_temporary_file(self):
          # create tmp file
          fd, tmp_name = tempfile.mkstemp(suffix=".h5")
          os.close(fd)
          data = numpy.arange(3 * 3 * 3)
          data.shape = 3, 3, 3
          # create h5 data
          h5file = h5py.File(tmp_name, "w")
          h5file["data"] = data
          yield h5file
          # clean up
          h5file.close()
          os.unlink(tmp_name)
  
      def test_text_data(self):
          data_list = ["aaa", int, 8, self]
          widget = self.create_widget()
          for data in data_list:
              widget.setData(data)
              self.assertEqual(DataViews.RAW_MODE, widget.displayMode())
  
      def test_plot_1d_data(self):
          data = numpy.arange(3 ** 1)
          data.shape = [3] * 1
          widget = self.create_widget()
          widget.setData(data)
          availableModes = set([v.modeId() for v in widget.currentAvailableViews()])
          self.assertEqual(DataViews.RAW_MODE, widget.displayMode())
          self.assertIn(DataViews.PLOT1D_MODE, availableModes)
  
      def test_image_data(self):
          data = numpy.arange(3 ** 2)
          data.shape = [3] * 2
          widget = self.create_widget()
          widget.setData(data)
          availableModes = set([v.modeId() for v in widget.currentAvailableViews()])
          self.assertEqual(DataViews.RAW_MODE, widget.displayMode())
          self.assertIn(DataViews.IMAGE_MODE, availableModes)
  
      def test_image_bool(self):
          data = numpy.zeros((10, 10), dtype=numpy.bool)
          data[::2, ::2] = True
          widget = self.create_widget()
          widget.setData(data)
          availableModes = set([v.modeId() for v in widget.currentAvailableViews()])
          self.assertEqual(DataViews.RAW_MODE, widget.displayMode())
          self.assertIn(DataViews.IMAGE_MODE, availableModes)
  
      def test_image_complex_data(self):
          data = numpy.arange(3 ** 2, dtype=numpy.complex)
          data.shape = [3] * 2
          widget = self.create_widget()
          widget.setData(data)
          availableModes = set([v.modeId() for v in widget.currentAvailableViews()])
          self.assertEqual(DataViews.RAW_MODE, widget.displayMode())
          self.assertIn(DataViews.IMAGE_MODE, availableModes)
  
      def test_plot_3d_data(self):
          data = numpy.arange(3 ** 3)
          data.shape = [3] * 3
          widget = self.create_widget()
          widget.setData(data)
          availableModes = set([v.modeId() for v in widget.currentAvailableViews()])
          try:
              import silx.gui.plot3d  # noqa
              self.assertIn(DataViews.PLOT3D_MODE, availableModes)
          except ImportError:
              self.assertIn(DataViews.STACK_MODE, availableModes)
          self.assertEqual(DataViews.RAW_MODE, widget.displayMode())
  
      def test_array_1d_data(self):
          data = numpy.array(["aaa"] * (3 ** 1))
          data.shape = [3] * 1
          widget = self.create_widget()
          widget.setData(data)
          self.assertEqual(DataViews.RAW_MODE, widget.displayedView().modeId())
  
      def test_array_2d_data(self):
          data = numpy.array(["aaa"] * (3 ** 2))
          data.shape = [3] * 2
          widget = self.create_widget()
          widget.setData(data)
          self.assertEqual(DataViews.RAW_MODE, widget.displayedView().modeId())
  
      def test_array_4d_data(self):
          data = numpy.array(["aaa"] * (3 ** 4))
          data.shape = [3] * 4
          widget = self.create_widget()
          widget.setData(data)
          self.assertEqual(DataViews.RAW_MODE, widget.displayedView().modeId())
  
      def test_record_4d_data(self):
          data = numpy.zeros(3 ** 4, dtype='3int8, float32, (2,3)float64')
          data.shape = [3] * 4
          widget = self.create_widget()
          widget.setData(data)
          self.assertEqual(DataViews.RAW_MODE, widget.displayedView().modeId())
  
      def test_3d_h5_dataset(self):
          if h5py is None:
              self.skipTest("h5py library is not available")
          with self.h5_temporary_file() as h5file:
              dataset = h5file["data"]
              widget = self.create_widget()
              widget.setData(dataset)
  
      def test_data_event(self):
          listener = SignalListener()
          widget = self.create_widget()
          widget.dataChanged.connect(listener)
          widget.setData(10)
          widget.setData(None)
          self.assertEqual(listener.callCount(), 2)
  
      def test_display_mode_event(self):
          listener = SignalListener()
          widget = self.create_widget()
          widget.displayedViewChanged.connect(listener)
          widget.setData(10)
          widget.setData(None)
          modes = [v.modeId() for v in listener.arguments(argumentIndex=0)]
          self.assertEqual(modes, [DataViews.RAW_MODE, DataViews.EMPTY_MODE])
          listener.clear()
  
      def test_change_display_mode(self):
          data = numpy.arange(10 ** 4)
          data.shape = [10] * 4
          widget = self.create_widget()
          widget.setData(data)
          widget.setDisplayMode(DataViews.PLOT1D_MODE)
          self.assertEqual(widget.displayedView().modeId(), DataViews.PLOT1D_MODE)
          widget.setDisplayMode(DataViews.IMAGE_MODE)
          self.assertEqual(widget.displayedView().modeId(), DataViews.IMAGE_MODE)
          widget.setDisplayMode(DataViews.RAW_MODE)
          self.assertEqual(widget.displayedView().modeId(), DataViews.RAW_MODE)
          widget.setDisplayMode(DataViews.EMPTY_MODE)
          self.assertEqual(widget.displayedView().modeId(), DataViews.EMPTY_MODE)
  
      def test_create_default_views(self):
          widget = self.create_widget()
          views = widget.createDefaultViews()
          self.assertTrue(len(views) > 0)
  
      def test_add_view(self):
          widget = self.create_widget()
          view = _DataViewMock(widget)
          widget.addView(view)
          self.assertTrue(view in widget.availableViews())
          self.assertTrue(view in widget.currentAvailableViews())
  
      def test_remove_view(self):
          widget = self.create_widget()
          widget.setData("foobar")
          view = widget.currentAvailableViews()[0]
          widget.removeView(view)
          self.assertTrue(view not in widget.availableViews())
          self.assertTrue(view not in widget.currentAvailableViews())
  
      def test_replace_view(self):
          widget = self.create_widget()
          view = _DataViewMock(widget)
          widget.replaceView(DataViews.RAW_MODE,
                             view)
          self.assertIsNone(widget.getViewFromModeId(DataViews.RAW_MODE))
          self.assertTrue(view in widget.availableViews())
          self.assertTrue(view in widget.currentAvailableViews())
  
      def test_replace_view_in_composite(self):
          # replace a view that is a child of a composite view
          widget = self.create_widget()
          view = _DataViewMock(widget)
          widget.replaceView(DataViews.NXDATA_INVALID_MODE,
                             view)
          nxdata_view = widget.getViewFromModeId(DataViews.NXDATA_MODE)
          self.assertNotIn(DataViews.NXDATA_INVALID_MODE,
                           [v.modeId() for v in nxdata_view.availableViews()])
          self.assertTrue(view in nxdata_view.availableViews())
  
  
  class TestDataViewer(AbstractDataViewerTests):
      def create_widget(self):
          return DataViewer()
  
  
  class TestDataViewerFrame(AbstractDataViewerTests):
      def create_widget(self):
          return DataViewerFrame()
  
  
  class TestDataView(TestCaseQt):
  
      def createComplexData(self):
          line = [1, 2j, 3 + 3j, 4]
          image = [line, line, line, line]
          cube = [image, image, image, image]
          data = numpy.array(cube, dtype=numpy.complex)
          return data
  
      def createDataViewWithData(self, dataViewClass, data):
          viewer = dataViewClass(None)
          widget = viewer.getWidget()
          viewer.setData(data)
          return widget
  
      def testCurveWithComplex(self):
          data = self.createComplexData()
          dataViewClass = DataViews._Plot1dView
          widget = self.createDataViewWithData(dataViewClass, data[0, 0])
          self.qWaitForWindowExposed(widget)
  
      def testImageWithComplex(self):
          data = self.createComplexData()
          dataViewClass = DataViews._Plot2dView
          widget = self.createDataViewWithData(dataViewClass, data[0])
          self.qWaitForWindowExposed(widget)
  
      def testCubeWithComplex(self):
          self.skipTest("OpenGL widget not yet tested")
          try:
              import silx.gui.plot3d  # noqa
          except ImportError:
              self.skipTest("OpenGL not available")
          data = self.createComplexData()
          dataViewClass = DataViews._Plot3dView
          widget = self.createDataViewWithData(dataViewClass, data)
          self.qWaitForWindowExposed(widget)
  
      def testImageStackWithComplex(self):
          data = self.createComplexData()
          dataViewClass = DataViews._StackView
          widget = self.createDataViewWithData(dataViewClass, data)
          self.qWaitForWindowExposed(widget)
  
  
  def suite():
      test_suite = unittest.TestSuite()
      loadTestsFromTestCase = unittest.defaultTestLoader.loadTestsFromTestCase
      test_suite.addTest(loadTestsFromTestCase(TestDataViewer))
      test_suite.addTest(loadTestsFromTestCase(TestDataViewerFrame))
      test_suite.addTest(loadTestsFromTestCase(TestDataView))
      return test_suite
  
  
  if __name__ == '__main__':
      unittest.main(defaultTest='suite')
  