--- /dev/null	2019-05-23 09:38:00.246139815 -0400
+++ new/application/uitests/org.openjdk.jmc.flightrecorder.uitest/src/test/java/org/openjdk/jmc/flightrecorder/uitest/pages/IOPageTestBase.java	2019-05-23 17:07:14.500806153 -0400
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2018, 2019, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2019, Red Hat Inc. All rights reserved.
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * The contents of this file are subject to the terms of either the Universal Permissive License
+ * v 1.0 as shown at http://oss.oracle.com/licenses/upl
+ *
+ * or the following license:
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are permitted
+ * provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
+ * and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
+ * conditions and the following disclaimer in the documentation and/or other materials provided with
+ * the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
+ * endorse or promote products derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
+ * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.openjdk.jmc.flightrecorder.uitest.pages;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.List;
+
+import org.openjdk.jmc.common.IDisplayable;
+import org.openjdk.jmc.common.unit.ITypedQuantity;
+import org.openjdk.jmc.common.unit.LinearUnit;
+import org.openjdk.jmc.common.unit.UnitLookup;
+import org.openjdk.jmc.flightrecorder.ui.common.DurationPercentileTable;
+import org.openjdk.jmc.flightrecorder.ui.messages.internal.Messages;
+import org.openjdk.jmc.test.jemmy.MCJemmyTestBase;
+import org.openjdk.jmc.test.jemmy.misc.wrappers.MCTable;
+import org.openjdk.jmc.test.jemmy.misc.wrappers.MCTable.TableRow;
+
+public abstract class IOPageTestBase extends MCJemmyTestBase {
+
+	private static final String PERCENTILE_COL = Messages.DurationPercentileTable_PERCENTILE_COL_NAME;
+	private static final double[] PERCENTILES = { 0.0, 90.0, 99.0, 99.9, 99.99, 99.999, 100.0 };
+
+	protected void checkPercentileTable(String readCol, String readCountCol, String writeCol, String writeCountCol, long[][] tableValues) {
+		MCTable table = MCTable.getByName(DurationPercentileTable.TABLE_NAME);
+		List<TableRow> rows = table.getRows();
+		assertEquals(PERCENTILES.length, rows.size());
+
+		int index = 0;
+		for (TableRow row : rows) {
+			ITypedQuantity<LinearUnit> expectedPercentile = UnitLookup.NUMBER_UNITY.quantity(PERCENTILES[index]);
+			assertEquals(expectedPercentile.displayUsing(IDisplayable.EXACT), row.getText(PERCENTILE_COL));
+
+			long[] rawRowValues = tableValues[index];
+			assertEquals(getExpectedDuration(rawRowValues[0]), row.getText(readCol));
+			assertEquals(getExpectedCount(rawRowValues[1]), row.getText(readCountCol));
+			assertEquals(getExpectedDuration(rawRowValues[2]), row.getText(writeCol));
+			assertEquals(getExpectedCount(rawRowValues[3]), row.getText(writeCountCol));
+			index++;
+		}
+	}
+
+	private String getExpectedDuration(long rawValue) {
+		ITypedQuantity<LinearUnit> expectedDuration = UnitLookup.NANOSECOND.quantity(rawValue);
+		return expectedDuration.displayUsing(IDisplayable.AUTO);
+	}
+
+	private String getExpectedCount(long rawValue) {
+		ITypedQuantity<LinearUnit> expectedDuration = UnitLookup.NUMBER_UNITY.quantity(rawValue);
+		return expectedDuration.displayUsing(IDisplayable.AUTO);
+	}
+
+}
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