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from unittest import TestCase |
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from tests.ditest import DependencyInjectionTestBase |
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from mock import Mock, patch, sentinel |
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import numpy |
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class CameraTests(DependencyInjectionTestBase): |
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def test_saveSnapshot(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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camera.takeSnapshot = Mock() |
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target = Mock() |
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camera.saveSnapshot(target, for_=sentinel.object) |
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newPicture = self.pictureCache.new() |
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camera.takeSnapshot.assert_called_with(target, on=newPicture) |
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self.pictureCache.keep.assert_called_with(newPicture, sentinel.object) |
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def test_SaveSnapshot_doesnt_save_if_takeSnapshot_failed(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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camera.takeSnapshot = Mock() |
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camera.takeSnapshot.return_value = False |
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target = Mock() |
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camera.saveSnapshot(target, for_=sentinel.object) |
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self.assertFalse(self.pictureCache.keep.called) |
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def test_If_no_matplotlib_installed_takeSnapshot_returns_false(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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self.libs.hasDependency.return_value = False |
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self.libs.pyplot = None |
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self.assertFalse(camera.takeSnapshot(numpy.zeros([3,3,3]), Mock())) |
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def test_If_exception_during_plotting_returns_False(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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self.libs.pyplot.subplots.side_effect = ValueError |
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self.assertFalse(camera.takeSnapshot(numpy.zeros([3,3,3]), Mock())) |
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def test_If_no_exception_during_plotting_returns_True(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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self.libs.pyplot.subplots.return_value = [Mock(), [Mock()]*3] |
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self.assertTrue(camera.takeSnapshot(numpy.zeros([3,3,3]), Mock())) |
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def test_If_interactive_mode_is_on_temporarily_switches_it_off(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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self.libs.pyplot.isinteractive.return_value = True |
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camera.takeSnapshot(numpy.zeros([3,3,3]), Mock()) |
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self.libs.pyplot.ioff.assert_called_with() |
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def test_Interactive_mode_switched_back_on_even_if_exception_thrown(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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self.libs.pyplot.isinteractive.return_value = True |
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self.libs.pyplot.subplots.side_effect = ValueError |
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camera.takeSnapshot(numpy.zeros([3,3,3]), Mock()) |
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self.libs.pyplot.ion.assert_called_with() |
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def test_If_interactive_mode_is_off_leave_it_off(self): |
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from niprov.camera import Camera |
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camera = Camera(self.dependencies) |
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self.libs.pyplot.isinteractive.return_value = False |
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camera.takeSnapshot(numpy.zeros([3,3,3]), Mock()) |
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assert not self.libs.pyplot.ion.called |
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71
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ilogue /
niprov
