Ajout du GUI

kivy/tests/test_motion_event.py

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+import pytest
+
+from kivy.compat import isclose
+from kivy.input import MotionEvent
+
+
+class DummyMotionEvent(MotionEvent):
+    pass
+
+
+class TestMotionEvent:
+
+    def create_dummy_motion_event(self):
+        return DummyMotionEvent('dummy', 'dummy1', (0, 0))
+
+    def build_to_absolute_pos_data(self, x_max, y_max, x_step, y_step):
+        for x, y in zip(range(0, x_max, x_step), range(0, y_max, y_step)):
+            result = (x, y)
+            yield x / x_max, y / y_max, x_max, y_max, 0, result
+        for x, y, in zip(range(0, x_max, x_step), range(0, y_max, y_step)):
+            result = (y, x_max - x)
+            yield x / x_max, y / y_max, x_max, y_max, 90, result
+        for x, y, in zip(range(0, x_max, x_step), range(0, y_max, y_step)):
+            result = (x_max - x, y_max - y)
+            yield x / x_max, y / y_max, x_max, y_max, 180, result
+        for x, y, in zip(range(0, x_max, x_step), range(0, y_max, y_step)):
+            result = (y_max - y, x)
+            yield x / x_max, y / y_max, x_max, y_max, 270, result
+
+    def test_to_absolute_pos(self):
+        event = self.create_dummy_motion_event()
+        for item in self.build_to_absolute_pos_data(320, 240, 20, 21):
+            args = item[:-1]
+            expected_x, expected_y = item[-1]
+            x, y = event.to_absolute_pos(*args)
+            message = ('For args {} expected ({}, {}), got ({}, {})'
+                       .format(args, expected_x, expected_y, x, y))
+            correct = isclose(x, expected_x) and isclose(y, expected_y)
+            assert correct, message
+
+    def test_to_absolute_pos_error(self):
+        event = self.create_dummy_motion_event()
+        with pytest.raises(ValueError):
+            event.to_absolute_pos(0, 0, 100, 100, 10)