BUG-865: remove DurationStatsTracker

[yangtools.git] / common / util / src / test / java / org / opendaylight / yangtools / util / DurationStatisticsTrackerTest.java

diff --git a/common/util/src/test/java/org/opendaylight/yangtools/util/DurationStatisticsTrackerTest.java b/common/util/src/test/java/org/opendaylight/yangtools/util/DurationStatisticsTrackerTest.java
new file mode 100644 (file)
index 0000000..04c7002
--- /dev/null
+++ b/common/util/src/test/java/org/opendaylight/yangtools/util/DurationStatisticsTrackerTest.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2014 Brocade Communications Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+
+package org.opendaylight.yangtools.util;
+
+import static org.junit.Assert.assertEquals;
+import org.junit.Test;
+
+/**
+ * Unit tests for DurationStatsTracker.
+ *
+ * @author Thomas Pantelis
+ */
+public class DurationStatisticsTrackerTest {
+
+    @Test
+    public void test() {
+
+        DurationStatisticsTracker tracker = DurationStatisticsTracker.createConcurrent();
+
+        tracker.addDuration(10000);
+        assertEquals("getTotalDurations", 1, tracker.getTotalDurations());
+        assertEquals("getAverageDuration", 10000.0, tracker.getAverageDuration(), 0.1);
+        assertEquals("getLongestDuration", 10000, tracker.getLongestDuration());
+        assertEquals("getShortestDuration", 10000, tracker.getShortestDuration());
+
+        tracker.addDuration(30000);
+        assertEquals("getTotalDurations", 2, tracker.getTotalDurations());
+        assertEquals("getAverageDuration", 20000.0, tracker.getAverageDuration(), 0.1);
+        assertEquals("getLongestDuration", 30000, tracker.getLongestDuration());
+        assertEquals("getShortestDuration", 10000, tracker.getShortestDuration());
+
+        verifyDisplayableString("getDisplayableAverageDuration",
+                tracker.getDisplayableAverageDuration(), "20.0");
+        verifyDisplayableString("getDisplayableLongestDuration",
+                tracker.getDisplayableLongestDuration(), "30.0");
+        verifyDisplayableString("getDisplayableShortestDuration",
+                tracker.getDisplayableShortestDuration(), "10.0");
+
+        tracker.addDuration(10000);
+        assertEquals("getTotalDurations", 3, tracker.getTotalDurations());
+        assertEquals("getAverageDuration", 16666.0, tracker.getAverageDuration(), 1.0);
+        assertEquals("getLongestDuration", 30000, tracker.getLongestDuration());
+        assertEquals("getShortestDuration", 10000, tracker.getShortestDuration());
+
+        tracker.addDuration(5000);
+        assertEquals("getTotalDurations", 4, tracker.getTotalDurations());
+        assertEquals("getAverageDuration", 13750.0, tracker.getAverageDuration(), 1.0);
+        assertEquals("getLongestDuration", 30000, tracker.getLongestDuration());
+        assertEquals("getShortestDuration", 5000, tracker.getShortestDuration());
+
+        tracker.reset();
+        assertEquals("getTotalDurations", 0, tracker.getTotalDurations());
+        assertEquals("getAverageDuration", 0.0, tracker.getAverageDuration(), 0.1);
+        assertEquals("getLongestDuration", 0, tracker.getLongestDuration());
+        assertEquals("getShortestDuration", 0, tracker.getShortestDuration());
+
+        tracker.addDuration(10000);
+        assertEquals("getTotalDurations", 1, tracker.getTotalDurations());
+        assertEquals("getAverageDuration", 10000.0, tracker.getAverageDuration(), 0.1);
+        assertEquals("getLongestDuration", 10000, tracker.getLongestDuration());
+        assertEquals("getShortestDuration", 10000, tracker.getShortestDuration());
+    }
+
+    private static void verifyDisplayableString(final String name, final String actual, final String expPrefix) {
+        assertEquals(name + " starts with " + expPrefix + ". Actual: " + actual,
+                true, actual.startsWith(expPrefix));
+    }
+}