Ajout du GUI

kivy/tests/test_uix_carousel.py

@@ -0,0 +1,93 @@
+import pytest
+
+
+@pytest.fixture(
+    scope='session', params=(True, False), ids=lambda v: 'loop=' + str(v))
+def loop(request):
+    return request.param
+
+
+def test_remove_widget(loop):
+    from kivy.uix.carousel import Carousel
+    from kivy.uix.widget import Widget
+
+    c = Carousel(loop=loop)
+    assert c.index is None
+    assert c.current_slide is None
+    assert len(c.children) == 0
+    assert len(c.slides) == 0
+
+    N_SLIDES = 4
+    for i in range(N_SLIDES):
+        c.add_widget(Widget())
+    assert c.index == 0
+    assert c.current_slide == c.slides[0]
+    assert len(c.children) == 3 if loop else 2
+    assert len(c.slides) == N_SLIDES
+
+    # test issue #6370
+    c.index = len(c.slides) - 1
+    c.remove_widget(c.slides[0])
+
+    # remove a slide(smaller index than the current_slide's).
+    c.index = 1
+    old_current_slide = c.current_slide
+    c.remove_widget(c.slides[c.index - 1])
+    assert c.index == 0
+    assert c.current_slide is old_current_slide
+    assert len(c.children) == 2
+    assert len(c.slides) == 2
+
+    # remove a slide(bigger index than the current_slide's).
+    old_current_slide = c.current_slide
+    c.remove_widget(c.slides[c.index + 1])
+    assert c.index == 0
+    assert c.current_slide is old_current_slide
+    assert len(c.children) == 1
+    assert len(c.slides) == 1
+
+    # remove the current_slide(the last one left).
+    c.remove_widget(c.current_slide)
+    assert c.index is None
+    assert c.current_slide is None
+    assert len(c.children) == 0
+    assert len(c.slides) == 0
+
+
+@pytest.mark.parametrize(
+    ('n_slides', 'index', 'loop',
+    'index_of_previous_slide', 'index_of_next_slide'),
+    (
+        (1, 0, False, None, None),
+        (1, 0, True, None, None),
+        (2, 0, False, None, 1),
+        (2, 0, True, 1, 1),
+        (2, 1, False, 0, None),
+        (2, 1, True, 0, 0),
+        (3, 0, False, None, 1),
+        (3, 0, True, 2, 1),
+        (3, 1, False, 0, 2),
+        (3, 1, True, 0, 2),
+        (3, 2, False, 1, None),
+        (3, 2, True, 1, 0),
+    )
+)
+def test_previous_and_next(
+    n_slides, index, loop, index_of_previous_slide, index_of_next_slide
+):
+    from kivy.uix.carousel import Carousel
+    from kivy.uix.widget import Widget
+    c = Carousel(loop=loop)
+    for i in range(n_slides):
+        c.add_widget(Widget())
+    c.index = index
+    p_slide = c.previous_slide
+    assert (p_slide and c.slides.index(p_slide)) == index_of_previous_slide
+    n_slide = c.next_slide
+    assert (n_slide and c.slides.index(n_slide)) == index_of_next_slide
+
+
+if __name__ == "__main__":
+    pytest.main(args=[
+        __file__,
+    ])