1 files changed, 124 insertions, 0 deletions
diff --git a/framework/src/onos/core/api/src/test/java/org/onosproject/net/intent/constraint/LatencyConstraintTest.java b/framework/src/onos/core/api/src/test/java/org/onosproject/net/intent/constraint/LatencyConstraintTest.java
new file mode 100644
index 00000000..bab17495
--- /dev/null
+++ b/framework/src/onos/core/api/src/test/java/org/onosproject/net/intent/constraint/LatencyConstraintTest.java
@@ -0,0 +1,124 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * 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 org.onosproject.net.intent.constraint;
+
+import com.google.common.testing.EqualsTester;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.net.Annotations;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.DefaultPath;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Link;
+import org.onosproject.net.Path;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.provider.ProviderId;
+import org.onosproject.net.resource.link.LinkResourceService;
+
+import java.time.Duration;
+import java.time.temporal.ChronoUnit;
+import java.util.Arrays;
+
+import static org.easymock.EasyMock.createMock;
+import static org.hamcrest.Matchers.closeTo;
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+import static org.onosproject.net.AnnotationKeys.LATENCY;
+import static org.onosproject.net.DefaultLinkTest.cp;
+import static org.onosproject.net.DeviceId.deviceId;
+import static org.onosproject.net.Link.Type.DIRECT;
+
+public class LatencyConstraintTest {
+
+    private static final DeviceId DID1 = deviceId("of:1");
+    private static final DeviceId DID2 = deviceId("of:2");
+    private static final DeviceId DID3 = deviceId("of:3");
+    private static final PortNumber PN1 = PortNumber.portNumber(1);
+    private static final PortNumber PN2 = PortNumber.portNumber(2);
+    private static final PortNumber PN3 = PortNumber.portNumber(3);
+    private static final PortNumber PN4 = PortNumber.portNumber(4);
+    private static final ProviderId PROVIDER_ID = new ProviderId("of", "foo");
+    private static final String LATENCY1 = "3.0";
+    private static final String LATENCY2 = "4.0";
+
+    private LatencyConstraint sut;
+    private LinkResourceService linkResourceService;
+
+    private Path path;
+    private Link link1;
+    private Link link2;
+
+    @Before
+    public void setUp() {
+        linkResourceService = createMock(LinkResourceService.class);
+
+        Annotations annotations1 = DefaultAnnotations.builder().set(LATENCY, LATENCY1).build();
+        Annotations annotations2 = DefaultAnnotations.builder().set(LATENCY, LATENCY2).build();
+
+        link1 = new DefaultLink(PROVIDER_ID, cp(DID1, PN1), cp(DID2, PN2), DIRECT, annotations1);
+        link2 = new DefaultLink(PROVIDER_ID, cp(DID2, PN3), cp(DID3, PN4), DIRECT, annotations2);
+        path = new DefaultPath(PROVIDER_ID, Arrays.asList(link1, link2), 10);
+    }
+
+    /**
+     * Tests the path latency is less than the supplied constraint.
+     */
+    @Test
+    public void testLessThanLatency() {
+        sut = new LatencyConstraint(Duration.of(10, ChronoUnit.MICROS));
+
+        assertThat(sut.validate(path, linkResourceService), is(true));
+    }
+
+    /**
+     * Tests the path latency is more than the supplied constraint.
+     */
+    @Test
+    public void testMoreThanLatency() {
+        sut = new LatencyConstraint(Duration.of(3, ChronoUnit.MICROS));
+
+        assertThat(sut.validate(path, linkResourceService), is(false));
+    }
+
+    /**
+     * Tests the link latency is equal to "latency" annotated value.
+     */
+    @Test
+    public void testCost() {
+        sut = new LatencyConstraint(Duration.of(10, ChronoUnit.MICROS));
+
+        assertThat(sut.cost(link1, linkResourceService), is(closeTo(Double.parseDouble(LATENCY1), 1.0e-6)));
+        assertThat(sut.cost(link2, linkResourceService), is(closeTo(Double.parseDouble(LATENCY2), 1.0e-6)));
+    }
+
+    /**
+     * Tests equality of the instances.
+     */
+    @Test
+    public void testEquality() {
+        LatencyConstraint c1 = new LatencyConstraint(Duration.of(1, ChronoUnit.SECONDS));
+        LatencyConstraint c2 = new LatencyConstraint(Duration.of(1000, ChronoUnit.MILLIS));
+
+        LatencyConstraint c3 = new LatencyConstraint(Duration.of(2, ChronoUnit.SECONDS));
+        LatencyConstraint c4 = new LatencyConstraint(Duration.of(2000, ChronoUnit.MILLIS));
+
+        new EqualsTester()
+                .addEqualityGroup(c1, c2)
+                .addEqualityGroup(c3, c4)
+                .testEquals();
+    }
+}