Measure latency in seconds

1 files changed, 29 insertions, 0 deletions

diff --git a/service-monitor/src/test/java/com/yahoo/vespa/service/monitor/internal/LatencyMeasurementTest.java b/service-monitor/src/test/java/com/yahoo/vespa/service/monitor/internal/LatencyMeasurementTest.java
new file mode 100644
index 00000000000..14dfd3ea65b
--- /dev/null
+++ b/service-monitor/src/test/java/com/yahoo/vespa/service/monitor/internal/LatencyMeasurementTest.java
@@ -0,0 +1,29 @@
+// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+package com.yahoo.vespa.service.monitor.internal;
+
+import com.yahoo.jdisc.Timer;
+import org.junit.Test;
+
+import java.util.function.Consumer;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+public class LatencyMeasurementTest {
+    @Test
+    public void testReportedDuration() {
+        Timer timer = mock(Timer.class);
+        when(timer.currentTimeMillis()).thenReturn(500l, 1000l);
+        Consumer<Double> consumer = mock(Consumer.class);
+        try (LatencyMeasurement measurement = new LatencyMeasurement(timer, consumer)) {
+            // Avoid javac warning by referencing measurement.
+            dummy(measurement);
+        }
+
+        verify(consumer).accept(0.5);
+    }
+
+    private void dummy(LatencyMeasurement measurement) {}
+}
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