Fix bug in releasing a continuous resource

Change-Id: Idcc1faaf0ce9cd7856233dc2107dcc8329e6be94

@@ -86,7 +86,7 @@ final class ContinuousResourceAllocation {
                         ((ContinuousResource) x.resource()).value() == resource.value()))
                         ((ContinuousResource) x.resource()).value() == resource.value()))
                 .collect(Collectors.toList());
                 .collect(Collectors.toList());
 
 
-        if (matched.size() > 1) {
+        if (matched.size() > 0) {
             matched.remove(0);
             matched.remove(0);
         }
         }
 
 

+/*
+ * Copyright 2016-present 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.store.resource.impl;
+
+import com.google.common.collect.ImmutableList;
+import org.junit.Test;
+import org.onlab.util.Bandwidth;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.intent.IntentId;
+import org.onosproject.net.resource.ContinuousResource;
+import org.onosproject.net.resource.ResourceAllocation;
+import org.onosproject.net.resource.ResourceConsumer;
+import org.onosproject.net.resource.Resources;
+
+import static org.hamcrest.Matchers.is;
+import static org.junit.Assert.assertThat;
+
+/**
+ * Unit tests for ContinuousResourceAllocation.
+ */
+public class ContinuousResourceAllocationTest {
+
+    private static final DeviceId DID = DeviceId.deviceId("a");
+    private static final PortNumber PN1 = PortNumber.portNumber(1);
+
+    @Test
+    public void testReleaseWhenAllocatedResourceIsRequested() {
+        ContinuousResource original =
+                Resources.continuous(DID, PN1, Bandwidth.class).resource(Bandwidth.gbps(1).bps());
+        ContinuousResource allocated =
+                Resources.continuous(DID, PN1, Bandwidth.class).resource(Bandwidth.mbps(500).bps());
+        ResourceConsumer consumer = IntentId.valueOf(1);
+
+        ContinuousResourceAllocation sut = new ContinuousResourceAllocation(original,
+                ImmutableList.of(new ResourceAllocation(allocated, consumer)));
+
+        ContinuousResource request =
+                Resources.continuous(DID, PN1, Bandwidth.class).resource(Bandwidth.mbps(500).bps());
+
+        ContinuousResourceAllocation released = sut.release(request, consumer.consumerId());
+
+        assertThat(released.allocations().isEmpty(), is(true));
+    }
+
+    @Test
+    public void testReleaseWhenDifferentConsumerIsSpecified() {
+        ContinuousResource original =
+                Resources.continuous(DID, PN1, Bandwidth.class).resource(Bandwidth.gbps(1).bps());
+        ContinuousResource allocated =
+                Resources.continuous(DID, PN1, Bandwidth.class).resource(Bandwidth.mbps(500).bps());
+        ResourceConsumer consumer = IntentId.valueOf(1);
+        ResourceConsumer otherConsumer = IntentId.valueOf(2);
+
+        ContinuousResourceAllocation sut = new ContinuousResourceAllocation(original,
+                ImmutableList.of(new ResourceAllocation(allocated, consumer)));
+
+        ContinuousResource request =
+                Resources.continuous(DID, PN1, Bandwidth.class).resource(Bandwidth.mbps(500).bps());
+
+        ImmutableList<ResourceAllocation> allocations = sut.release(request, otherConsumer.consumerId()).allocations();
+
+        assertThat(allocations.size(), is(1));
+        assertThat(allocations.get(0).resource().equals(allocated), is(true));
+    }
+}