--- /dev/null
+/*
+ * Copyright 2015-present Open Networking Foundation
+ *
+ * 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 io.atomix.utils.time;
+
+import com.google.common.testing.EqualsTester;
+import org.junit.Assert;
+import org.junit.Test;
+
+import java.lang.reflect.Constructor;
+import java.util.Arrays;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * MultiValuedTimestamp unit tests.
+ */
+public class MultiValuedTimestampTest {
+ private final MultiValuedTimestamp<Integer, Integer> stats1 = new MultiValuedTimestamp<>(1, 3);
+ private final MultiValuedTimestamp<Integer, Integer> stats2 = new MultiValuedTimestamp<>(1, 2);
+
+ /**
+ * Tests the creation of the MapEvent object.
+ */
+ @Test
+ public void testConstruction() {
+ assertThat(stats1.value1(), is(1));
+ assertThat(stats1.value2(), is(3));
+ }
+
+ /**
+ * Tests the toCompare function.
+ */
+ @Test
+ public void testToCompare() {
+ assertThat(stats1.compareTo(stats2), is(1));
+ }
+
+ /**
+ * Tests the equals, hashCode and toString methods using Guava EqualsTester.
+ */
+ @Test
+ public void testEquals() {
+ new EqualsTester()
+ .addEqualityGroup(stats1, stats1)
+ .addEqualityGroup(stats2)
+ .testEquals();
+ }
+
+ /**
+ * Tests that the empty argument list constructor for serialization
+ * is present and creates a proper object.
+ */
+ @Test
+ public void testSerializerConstructor() {
+ try {
+ Constructor[] constructors = MultiValuedTimestamp.class.getDeclaredConstructors();
+ assertThat(constructors, notNullValue());
+ Arrays.stream(constructors).filter(ctor ->
+ ctor.getParameterTypes().length == 0)
+ .forEach(noParamsCtor -> {
+ try {
+ noParamsCtor.setAccessible(true);
+ MultiValuedTimestamp stats =
+ (MultiValuedTimestamp) noParamsCtor.newInstance();
+ assertThat(stats, notNullValue());
+ } catch (Exception e) {
+ Assert.fail("Exception instantiating no parameters constructor");
+ }
+ });
+ } catch (Exception e) {
+ Assert.fail("Exception looking up constructors");
+ }
+ }
+}