Unit test for intent accumulator
Change-Id: Id9f8c918bdddc7fe24e4eb283676fd94275e58cf
diff --git a/core/net/src/test/java/org/onosproject/net/intent/impl/IntentAccumulatorTest.java b/core/net/src/test/java/org/onosproject/net/intent/impl/IntentAccumulatorTest.java
new file mode 100644
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+++ b/core/net/src/test/java/org/onosproject/net/intent/impl/IntentAccumulatorTest.java
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+/*
+ * Copyright 2015 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.impl;
+
+import java.util.Collection;
+import java.util.List;
+
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onosproject.core.IdGenerator;
+import org.onosproject.net.intent.Intent;
+import org.onosproject.net.intent.IntentBatchDelegate;
+import org.onosproject.net.intent.IntentData;
+import org.onosproject.net.intent.IntentState;
+import org.onosproject.net.intent.IntentTestsMocks.MockIntent;
+import org.onosproject.net.intent.IntentTestsMocks.MockTimestamp;
+import org.onosproject.net.intent.MockIdGenerator;
+
+import com.google.common.collect.ImmutableList;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+
+/**
+ * Unit tests for the intent accumulator.
+ */
+public class IntentAccumulatorTest {
+
+ Intent intent1;
+ Intent intent2;
+ Intent intent3;
+ IdGenerator mockGenerator;
+
+ private static IntentDataMatcher containsIntent(Intent intent) {
+ return new IntentDataMatcher(intent);
+ }
+
+ /**
+ * Creates mock intents used by the test.
+ */
+ @Before
+ public void localSetup() {
+ mockGenerator = new MockIdGenerator();
+ Intent.bindIdGenerator(mockGenerator);
+
+ intent1 = new MockIntent(1L);
+ intent2 = new MockIntent(2L);
+ intent3 = new MockIntent(3L);
+ }
+
+ /**
+ * Removes id generator from the Intent class.
+ */
+ @After
+ public void localTearDown() {
+ Intent.unbindIdGenerator(mockGenerator);
+ }
+
+ /**
+ * Hamcrest matcher to check that a collection of intent data objects
+ * contains an entry for a given intent.
+ */
+ private static final class IntentDataMatcher
+ extends TypeSafeDiagnosingMatcher<Collection<IntentData>> {
+
+ final Intent intent;
+
+ public IntentDataMatcher(Intent intent) {
+ this.intent = intent;
+ }
+
+ /**
+ * Check that the given collection of intent data contains a specific
+ * intent.
+ *
+ * @param operations collection of intent data
+ * @param description description
+ * @return true if the collection contains the intent, false otherwise.
+ */
+ public boolean matchesSafely(Collection<IntentData> operations,
+ Description description) {
+ for (IntentData operation : operations) {
+ if (operation.key().equals(intent.key())) {
+ if (operation.state() != IntentState.INSTALLED) {
+ description.appendText("state was " + operation.state());
+ return false;
+ }
+ return true;
+ }
+ }
+ description.appendText("key was not found " + intent.key());
+ return false;
+ }
+
+ @Override
+ public void describeTo(Description description) {
+ description.appendText("INSTALLED state intent with key " + intent.key());
+ }
+ }
+
+ /**
+ * Mock batch delegate class. Gets calls from the accumulator and checks
+ * that the operations have been properly compressed.
+ */
+ private class MockIntentBatchDelegate
+ implements IntentBatchDelegate {
+ public void execute(Collection<IntentData> operations) {
+ assertThat(operations, hasSize(3));
+ assertThat(operations, containsIntent(intent1));
+ assertThat(operations, containsIntent(intent2));
+ assertThat(operations, containsIntent(intent3));
+ }
+ }
+
+ /**
+ * Tests that the accumulator properly compresses operations on the same
+ * intents.
+ */
+ @Test
+ public void checkAccumulator() {
+
+ MockIntentBatchDelegate delegate = new MockIntentBatchDelegate();
+ IntentAccumulator accumulator = new IntentAccumulator(delegate);
+
+ List<IntentData> intentDataItems = ImmutableList.of(
+ new IntentData(intent1, IntentState.INSTALLING,
+ new MockTimestamp(1)),
+ new IntentData(intent2, IntentState.INSTALLING,
+ new MockTimestamp(1)),
+ new IntentData(intent3, IntentState.INSTALLED,
+ new MockTimestamp(1)),
+ new IntentData(intent2, IntentState.INSTALLED,
+ new MockTimestamp(1)),
+ new IntentData(intent2, IntentState.INSTALLED,
+ new MockTimestamp(1)),
+ new IntentData(intent1, IntentState.INSTALLED,
+ new MockTimestamp(1)));
+
+
+ accumulator.processItems(intentDataItems);
+ }
+
+
+}