1 files changed, 143 insertions, 0 deletions
diff --git a/src/test/java/org/onap/dcae/commonFunction/DmaapPublishersTest.java b/src/test/java/org/onap/dcae/commonFunction/DmaapPublishersTest.java
new file mode 100644
index 00000000..782b7c25
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+++ b/src/test/java/org/onap/dcae/commonFunction/DmaapPublishersTest.java
@@ -0,0 +1,143 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.onap.dcaegen2.collectors.ves
+ * ================================================================================
+ * Copyright (C) 2018 Nokia. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.dcae.commonFunction;
+
+import static org.hamcrest.CoreMatchers.allOf;
+import static org.hamcrest.CoreMatchers.instanceOf;
+import static org.junit.Assert.assertSame;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.BDDMockito.given;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+
+import com.att.nsa.cambria.client.CambriaBatchingPublisher;
+import com.att.nsa.cambria.client.CambriaPublisher;
+import com.google.common.collect.ImmutableList;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.security.GeneralSecurityException;
+import java.util.concurrent.TimeUnit;
+import org.hamcrest.BaseMatcher;
+import org.hamcrest.Description;
+import org.hamcrest.Matcher;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.junit.MockitoJUnitRunner;
+
+
+@RunWith(MockitoJUnitRunner.class)
+public class DmaapPublishersTest {
+
+    @Mock
+    private CambriaPublisherFactory publisherFactory;
+    @Mock
+    private CambriaBatchingPublisher cambriaPublisher;
+    private DmaapPublishers cut;
+    @Rule
+    public ExpectedException expectedException = ExpectedException.none();
+
+    @Before
+    public void setUp() throws MalformedURLException, GeneralSecurityException {
+        given(publisherFactory.createCambriaPublisher(anyString())).willReturn(cambriaPublisher);
+        cut = DmaapPublishers.create(publisherFactory);
+    }
+
+    @Test
+    public void getByStreamIdShouldUseCachedItem() throws IOException, GeneralSecurityException {
+        // given
+        String streamId = "sampleStream";
+
+        // when
+        CambriaBatchingPublisher firstPublisher = cut.getByStreamId(streamId);
+        CambriaBatchingPublisher secondPublisher = cut.getByStreamId(streamId);
+
+        // then
+        verify(publisherFactory, times(1)).createCambriaPublisher(streamId);
+        assertSame("should return same instance", firstPublisher, secondPublisher);
+    }
+
+    @Test
+    public void getByStreamIdShouldHandleErrors() throws MalformedURLException, GeneralSecurityException {
+        // given
+        MalformedURLException exception = new MalformedURLException();
+        given(publisherFactory.createCambriaPublisher(anyString())).willThrow(exception);
+        expectedException.expect(allOf(
+                instanceOf(UncheckedExecutionException.class),
+                causeIsInstanceOf(exception.getClass())));
+
+        // when
+        cut.getByStreamId("a stream");
+
+        // then
+        // exception should have been thrown
+    }
+
+    @Test
+    public void closeByStreamIdShouldCloseConnection() throws IOException, InterruptedException {
+        // given
+        String streamId = "sampleStream";
+        given(cambriaPublisher.close(anyLong(), any(TimeUnit.class)))
+                .willReturn(ImmutableList.of(new CambriaPublisher.message("p", "msg")));
+
+        // when
+        CambriaBatchingPublisher cachedPublisher = cut.getByStreamId(streamId);
+        cut.closeByStreamId(streamId);
+
+        // then
+        assertSame("should return proper publisher", cambriaPublisher, cachedPublisher);
+        verify(cambriaPublisher).close(20, TimeUnit.SECONDS);
+    }
+
+    @Test
+    public void closeByStreamIdShouldHandleErrors() throws IOException, InterruptedException {
+        // given
+        String streamId = "sampleStream";
+        given(cambriaPublisher.close(anyLong(), any(TimeUnit.class))).willThrow(IOException.class);
+
+        // when
+        CambriaBatchingPublisher cachedPublisher = cut.getByStreamId(streamId);
+        cut.closeByStreamId(streamId);
+
+        // then
+        assertSame("should return proper publisher", cambriaPublisher, cachedPublisher);
+        verify(cambriaPublisher).close(20, TimeUnit.SECONDS);
+    }
+
+    private Matcher<Exception> causeIsInstanceOf(final Class<?> clazz) {
+        return new BaseMatcher<Exception>() {
+            @Override
+            public boolean matches(Object o) {
+                return o instanceof Throwable && clazz.isInstance(((Throwable) o).getCause());
+            }
+
+            @Override
+            public void describeTo(Description description) {
+                description.appendText("exception cause should be an instance of " + clazz.getName());
+            }
+        };
+    }
+}
+\ No newline at end of file