Add CTS test for view's RTL resolution
Bug: 30132566
Change-Id: I10a6e2e30b9c89f45c7bee0599393aebe41015a3
diff --git a/tests/tests/widget/src/android/widget/cts/ListViewTest.java b/tests/tests/widget/src/android/widget/cts/ListViewTest.java
index e89b3d3..2f39c2b 100644
--- a/tests/tests/widget/src/android/widget/cts/ListViewTest.java
+++ b/tests/tests/widget/src/android/widget/cts/ListViewTest.java
@@ -764,7 +764,45 @@
mListView.setPadding(10, 0, 5, 0);
assertFalse(view.isLayoutRequested());
});
+ }
+ @MediumTest
+ public void testResolveRtlOnReAttach() {
+ View spacer = new View(getActivity());
+ spacer.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
+ 250));
+ final DummyAdapter adapter = new DummyAdapter(50, spacer);
+ ViewTestUtils.runOnMainAndDrawSync(getInstrumentation(), mListView, () -> {
+ mListView.setLayoutDirection(View.LAYOUT_DIRECTION_RTL);
+ mListView.setLayoutParams(new LinearLayout.LayoutParams(200, 150));
+ mListView.setAdapter(adapter);
+ });
+ assertEquals("test sanity", 1, mListView.getChildCount());
+ ViewTestUtils.runOnMainAndDrawSync(getInstrumentation(), mListView, () -> {
+ // we scroll in pieces because list view caps scroll by its height
+ mListView.scrollListBy(100);
+ mListView.scrollListBy(100);
+ mListView.scrollListBy(60);
+ });
+ assertEquals("test sanity", 1, mListView.getChildCount());
+ assertEquals("test sanity", 1, mListView.getFirstVisiblePosition());
+ ViewTestUtils.runOnMainAndDrawSync(getInstrumentation(), mListView, () -> {
+ mListView.scrollListBy(-100);
+ mListView.scrollListBy(-100);
+ mListView.scrollListBy(-60);
+ });
+ assertEquals("test sanity", 1, mListView.getChildCount());
+ assertEquals("item 0 should be visible", 0, mListView.getFirstVisiblePosition());
+ ViewTestUtils.runOnMainAndDrawSync(getInstrumentation(), mListView, () -> {
+ mListView.scrollListBy(100);
+ mListView.scrollListBy(100);
+ mListView.scrollListBy(60);
+ });
+ assertEquals("test sanity", 1, mListView.getChildCount());
+ assertEquals("test sanity", 1, mListView.getFirstVisiblePosition());
+
+ assertEquals("the view's RTL properties must be resolved",
+ mListView.getChildAt(0).getLayoutDirection(), View.LAYOUT_DIRECTION_RTL);
}
private class MockView extends View {
