Send selection change events when changing selection mode (#20391)

Change-Id: Iaeb772981f3ac039bf0fe3cde595cfdb3691cddf

1 files changed, 34 insertions, 0 deletions

diff --git a/compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/grid/GridSelectionTest.java b/compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/grid/GridSelectionTest.java
index afc38a4201..2421e8d07a 100644
--- a/compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/grid/GridSelectionTest.java
+++ b/compatibility-server/src/test/java/com/vaadin/v7/tests/server/component/grid/GridSelectionTest.java
@@ -21,6 +21,7 @@ import static org.junit.Assert.assertTrue;
 
 import java.util.Collection;
 
+import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -374,4 +375,37 @@ public class GridSelectionTest {
         assertEquals("selectedRows is correct", itemId2Present,
                 grid.getSelectedRow());
     }
+
+    @Test
+    public void selectionChangeEventWhenChangingSelectionModeSingleToNone() {
+        grid.select(itemId1Present);
+        Assert.assertEquals(itemId1Present, grid.getSelectedRow());
+        mockListener.clearEvent();
+        grid.setSelectionMode(SelectionMode.NONE);
+        assertTrue(mockListener.eventHasHappened());
+        assertTrue(mockListener.getRemoved().contains(itemId1Present));
+    }
+
+    @Test
+    public void selectionChangeEventWhenChangingSelectionModeMultiToNone() {
+        grid.setSelectionMode(SelectionMode.MULTI);
+        grid.select(itemId1Present);
+        grid.select(itemId2Present);
+        mockListener.clearEvent();
+        grid.setSelectionMode(SelectionMode.NONE);
+        assertTrue(mockListener.eventHasHappened());
+        assertTrue(mockListener.getRemoved().contains(itemId1Present));
+        assertTrue(mockListener.getRemoved().contains(itemId2Present));
+    }
+
+    @Test
+    public void noSelectionChangeEventWhenChanginModeWithNoneSelected() {
+        mockListener.clearEvent();
+        grid.setSelectionMode(SelectionMode.SINGLE);
+        assertFalse(mockListener.eventHasHappened());
+        grid.setSelectionMode(SelectionMode.NONE);
+        assertFalse(mockListener.eventHasHappened());
+        grid.setSelectionMode(SelectionMode.MULTI);
+        assertFalse(mockListener.eventHasHappened());
+    }
 }