source: sasview/src/sas/qtgui/UnitTesting/ColorMapTest.py @ 9f25bce

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Last change on this file since 9f25bce was 5d89f43, checked in by Piotr Rozyczko <rozyczko@…>, 8 years ago

Code review for ColorMap?
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1import sys
2import unittest
3import numpy
4
5from PyQt4 import QtGui
6from mock import MagicMock
7import matplotlib as mpl
8
9# set up import paths
10import path_prepare
11
12from sas.sasgui.guiframe.dataFitting import Data2D
13import sas.qtgui.Plotter2D as Plotter2D
14from UnitTesting.TestUtils import WarningTestNotImplemented
15from UnitTesting.TestUtils import QtSignalSpy
16
17# Local
18from sas.qtgui.ColorMap import ColorMap
19
20app = QtGui.QApplication(sys.argv)
21
22class ColorMapTest(unittest.TestCase):
23    '''Test the ColorMap'''
24    def setUp(self):
25        '''Create the ColorMap'''
26        self.plotter = Plotter2D.Plotter2D(None, quickplot=True)
27
28        self.data = Data2D(image=[0.1]*4,
29                           qx_data=[1.0, 2.0, 3.0, 4.0],
30                           qy_data=[10.0, 11.0, 12.0, 13.0],
31                           dqx_data=[0.1, 0.2, 0.3, 0.4],
32                           dqy_data=[0.1, 0.2, 0.3, 0.4],
33                           q_data=[1,2,3,4],
34                           xmin=-1.0, xmax=5.0,
35                           ymin=-1.0, ymax=15.0,
36                           zmin=-1.0, zmax=20.0)
37
38        self.data.title="Test data"
39        self.data.id = 1
40        self.widget = ColorMap(parent=self.plotter, data=self.data)
41
42    def tearDown(self):
43        '''Destroy the GUI'''
44        self.widget.close()
45        self.widget = None
46
47    def testDefaults(self):
48        '''Test the GUI in its default state'''
49        self.assertIsInstance(self.widget, QtGui.QDialog)
50
51        self.assertEqual(self.widget._cmap_orig, "jet")
52        self.assertEqual(len(self.widget.all_maps), 144)
53        self.assertEqual(len(self.widget.maps), 72)
54        self.assertEqual(len(self.widget.rmaps), 72)
55
56        self.assertEqual(self.widget.lblWidth.text(), "0")
57        self.assertEqual(self.widget.lblHeight.text(), "0")
58        self.assertEqual(self.widget.lblQmax.text(), "15.8")
59        self.assertEqual(self.widget.lblStopRadius.text(), "-1")
60        self.assertFalse(self.widget.chkReverse.isChecked())
61        self.assertEqual(self.widget.cbColorMap.count(), 72)
62        self.assertEqual(self.widget.cbColorMap.currentIndex(), 60)
63
64        # validators
65        self.assertIsInstance(self.widget.txtMinAmplitude.validator(), QtGui.QDoubleValidator)
66        self.assertIsInstance(self.widget.txtMaxAmplitude.validator(), QtGui.QDoubleValidator)
67
68        # Ranges
69        self.assertEqual(self.widget.txtMinAmplitude.text(), "0")
70        self.assertEqual(self.widget.txtMaxAmplitude.text(), "100")
71        self.assertIsInstance(self.widget.slider, QtGui.QSlider)
72
73    def testOnReset(self):
74        '''Check the dialog reset function'''
75        # Set some controls to non-default state
76        self.widget.cbColorMap.setCurrentIndex(20)
77        self.widget.chkReverse.setChecked(True)
78        self.widget.txtMinAmplitude.setText("20.0")
79
80        # Reset the widget state
81        self.widget.onReset()
82
83        # Assure things went back to default
84        self.assertEqual(self.widget.cbColorMap.currentIndex(), 20)
85        self.assertFalse(self.widget.chkReverse.isChecked())
86        self.assertEqual(self.widget.txtMinAmplitude.text(), "0")
87
88    def testOnApply(self):
89        '''Check the dialog apply function'''
90        # Set some controls to non-default state
91        self.widget.show()
92        self.widget.cbColorMap.setCurrentIndex(20) # PuRd_r
93        self.widget.chkReverse.setChecked(True)
94        self.widget.txtMinAmplitude.setText("20.0")
95
96        spy_apply = QtSignalSpy(self.widget, self.widget.apply_signal)
97        # Reset the widget state
98        self.widget.onApply()
99
100        # Assure the widget is still up and the signal was sent.
101        self.assertTrue(self.widget.isVisible())
102        self.assertEqual(spy_apply.count(), 1)
103        self.assertIn('PuRd_r', spy_apply.called()[0]['args'][1])
104
105    def testInitMapCombobox(self):
106        '''Test the combo box initializer'''
107        # Set a color map from the direct list
108        self.widget._cmap = "gnuplot"
109        self.widget.initMapCombobox()
110
111        # Check the combobox
112        self.assertEqual(self.widget.cbColorMap.currentIndex(), 55)
113        self.assertFalse(self.widget.chkReverse.isChecked())
114
115        # Set a reversed value
116        self.widget._cmap = "hot_r"
117        self.widget.initMapCombobox()
118        # Check the combobox
119        self.assertEqual(self.widget.cbColorMap.currentIndex(), 56)
120        self.assertTrue(self.widget.chkReverse.isChecked())
121
122    def testInitRangeSlider(self):
123        '''Test the range slider initializer'''
124        # Set a color map from the direct list
125        self.widget._cmap = "gnuplot"
126        self.widget.initRangeSlider()
127
128        # Check the values
129        self.assertEqual(self.widget.slider.minimum(), 0)
130        self.assertEqual(self.widget.slider.maximum(), 100)
131        self.assertEqual(self.widget.slider.orientation(), 1)
132
133        # Emit new low value
134        self.widget.slider.lowValueChanged.emit(5)
135        # Assure the widget received changes
136        self.assertEqual(self.widget.txtMinAmplitude.text(), "5")
137
138        # Emit new high value
139        self.widget.slider.highValueChanged.emit(45)
140        # Assure the widget received changes
141        self.assertEqual(self.widget.txtMinAmplitude.text(), "45")
142
143    def testOnMapIndexChange(self):
144        '''Test the response to the combo box index change'''
145
146        self.widget.canvas.draw = MagicMock()
147        mpl.colorbar.ColorbarBase = MagicMock()
148
149        # simulate index change
150        self.widget.cbColorMap.setCurrentIndex(1)
151
152        # Check that draw() got called
153        self.assertTrue(self.widget.canvas.draw.called)
154        self.assertTrue(mpl.colorbar.ColorbarBase.called)
155
156    def testOnColorMapReversed(self):
157        '''Test reversing the color map functionality'''
158        # Check the defaults
159        self.assertEqual(self.widget._cmap, "jet")
160        self.widget.cbColorMap.addItems = MagicMock()
161
162        # Reverse the choice
163        self.widget.onColorMapReversed(True)
164
165        # check the behaviour
166        self.assertEqual(self.widget._cmap, "jet_r")
167        self.assertTrue(self.widget.cbColorMap.addItems.called)
168
169    def testOnAmplitudeChange(self):
170        '''Check the callback method for responding to changes in textboxes'''
171        self.widget.canvas.draw = MagicMock()
172        mpl.colors.Normalize = MagicMock()
173        mpl.colorbar.ColorbarBase = MagicMock()
174
175        self.widget.vmin = 0.0
176        self.widget.vmax = 100.0
177
178        # good values in fields
179        self.widget.txtMinAmplitude.setText("1.0")
180        self.widget.txtMaxAmplitude.setText("10.0")
181
182        self.widget.onAmplitudeChange()
183
184        # Check the arguments to Normalize
185        mpl.colors.Normalize.assert_called_with(vmin=1.0, vmax=10.0)
186        self.assertTrue(self.widget.canvas.draw.called)
187
188        # Bad values in fields
189        self.widget.txtMinAmplitude.setText("cake")
190        self.widget.txtMaxAmplitude.setText("more cake")
191
192        self.widget.onAmplitudeChange()
193
194        # Check the arguments to Normalize - should be defaults
195        mpl.colors.Normalize.assert_called_with(vmin=0.0, vmax=100.0)
196        self.assertTrue(self.widget.canvas.draw.called)
197
198
199if __name__ == "__main__":
200    unittest.main()
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