📰 Make status cards swipable

chrome/android/junit/src/org/chromium/chrome/browser/ntp/cards/NewTabPageAdapterTest.java

Index: chrome/android/junit/src/org/chromium/chrome/browser/ntp/cards/NewTabPageAdapterTest.java
diff --git a/chrome/android/junit/src/org/chromium/chrome/browser/ntp/cards/NewTabPageAdapterTest.java b/chrome/android/junit/src/org/chromium/chrome/browser/ntp/cards/NewTabPageAdapterTest.java
index 810795772eecc28cc11a2db9090373fdabaa584c..377424dbb3c2b865de3652ab181c8326b1198047 100644
--- a/chrome/android/junit/src/org/chromium/chrome/browser/ntp/cards/NewTabPageAdapterTest.java
+++ b/chrome/android/junit/src/org/chromium/chrome/browser/ntp/cards/NewTabPageAdapterTest.java
@@ -6,6 +6,8 @@
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
@@ -655,6 +657,46 @@ public void testCategoryOrder() {
         assertEquals(KnownCategories.DOWNLOADS, getCategory(groups.get(3)));
     }
 
+    @Test
+    @Feature({"Ntp"})
+    public void testDismissSibling() {
+        List<SnippetArticle> snippets = createDummySuggestions(3);
+        SuggestionsSection section;
+
+        // Part 1: ShowMoreButton = true
+        section = new SuggestionsSection(42,
+                new SuggestionsCategoryInfo("", ContentSuggestionsCardLayout.FULL_CARD, true, true),
+                null);
+        section.setStatus(CategoryStatus.AVAILABLE);
+        assertNotNull(section.getActionItem());
+
+        // 1.1: Without snippets
+        assertEquals(-1, section.getDismissSiblingPosDelta(section.getActionItem()));
+        assertEquals(1, section.getDismissSiblingPosDelta(section.getStatusItem()));
+
+        // 1.2: With snippets
+        section.setSuggestions(snippets, CategoryStatus.AVAILABLE);
+        assertEquals(0, section.getDismissSiblingPosDelta(section.getActionItem()));
+        assertEquals(0, section.getDismissSiblingPosDelta(section.getStatusItem()));
+        assertEquals(0, section.getDismissSiblingPosDelta(snippets.get(0)));
+
+        // Part 2: ShowMoreButton = false
+        section = new SuggestionsSection(42,
+                new SuggestionsCategoryInfo("", ContentSuggestionsCardLayout.FULL_CARD, false,
+                                                 true),
+                null);
+        section.setStatus(CategoryStatus.AVAILABLE);
+        assertNull(section.getActionItem());
+
+        // 2.1: Without snippets
+        assertEquals(0, section.getDismissSiblingPosDelta(section.getStatusItem()));
+
+        // 2.2: With snippets
+        section.setSuggestions(snippets, CategoryStatus.AVAILABLE);
+        assertEquals(0, section.getDismissSiblingPosDelta(section.getStatusItem()));
+        assertEquals(0, section.getDismissSiblingPosDelta(snippets.get(0)));
+    }
+
     private List<SnippetArticle> createDummySuggestions(int count) {
         List<SnippetArticle> suggestions = new ArrayList<>();
         for (int index = 0; index < count; index++) {