1 files changed, 58 insertions, 0 deletions
diff --git a/uitest/src/com/vaadin/tests/components/table/SetPageFirstItemLoadsNeededRowsOnlyTest.java b/uitest/src/com/vaadin/tests/components/table/SetPageFirstItemLoadsNeededRowsOnlyTest.java
new file mode 100644
index 0000000000..ebf53e9a6d
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/components/table/SetPageFirstItemLoadsNeededRowsOnlyTest.java
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.tests.components.table;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+import com.vaadin.testbench.elements.LabelElement;
+import com.vaadin.tests.tb3.MultiBrowserTest;
+
+/**
+ * 
+ * @author Vaadin Ltd
+ */
+public class SetPageFirstItemLoadsNeededRowsOnlyTest extends MultiBrowserTest {
+
+    /*
+     * expectedRowsRequested is related to VScrollTable's cache_rate and
+     * pageLength. See for instance VScrollTable.ensureCacheFilled().
+     * 
+     * This also takes into account if the visible rows are at the very start or
+     * end of the table, if the user scrolled or the
+     * Table.setCurrentPageFirstItemIndex(int) method was used.
+     * 
+     * This value should not change if cache_rate and pageLength are not changed
+     * as well, and if this test remains constant: the table is scrolled to the
+     * very end (done in the actual UI: SetPageFirstItemLoadsNeededRowsOnly).
+     */
+    private int expectedRowsRequested = 45;
+
+    @Test
+    public void verifyLoadedRows() throws InterruptedException {
+
+        openTestURL();
+
+        // wait for events to be processed in UI after loading page
+        sleep(2000);
+
+        String labelValue = $(LabelElement.class).get(1).getText();
+        String expectedLabelValue = "rows requested: " + expectedRowsRequested;
+        String errorMessage = "Too many rows were requested";
+        assertEquals(errorMessage, expectedLabelValue, labelValue);
+    }
+}