Add more tests

src/test/java/org/italiangrid/storm/webdav/test/utils/ThreadPoolBuilderTests.java

@@ -0,0 +1,98 @@
+/**
+ * Copyright (c) Istituto Nazionale di Fisica Nucleare, 2014-2023.
+ *
+ * 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.italiangrid.storm.webdav.test.utils;
+
+import static org.hamcrest.CoreMatchers.is;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.italiangrid.storm.webdav.server.util.ThreadPoolBuilder.DEFAULT_IDLE_TIMEOUT;
+import static org.italiangrid.storm.webdav.server.util.ThreadPoolBuilder.DEFAULT_MAX_THREADS;
+import static org.italiangrid.storm.webdav.server.util.ThreadPoolBuilder.DEFAULT_MIN_THREADS;
+import static org.italiangrid.storm.webdav.server.util.ThreadPoolBuilder.DEFAULT_THREAD_POOL_METRIC_NAME;
+import static org.junit.Assert.assertNotNull;
+
+import org.eclipse.jetty.util.thread.QueuedThreadPool;
+import org.eclipse.jetty.util.thread.ThreadPool;
+import org.italiangrid.storm.webdav.server.util.ThreadPoolBuilder;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import com.codahale.metrics.MetricRegistry;
+import com.codahale.metrics.jetty9.InstrumentedQueuedThreadPool;
+
+@ExtendWith(MockitoExtension.class)
+public class ThreadPoolBuilderTests {
+
+  final static String PREFIX = "iam";
+  final static String NAME = "queue";
+  final static int IDLE_TIMEOUT = 6;
+  final static int MIN_THREADS = 10;
+  final static int MAX_THREADS = 20;
+  final static int MAX_QUEUE_SIZE = 40;
+
+  @Mock
+  MetricRegistry registry;
+
+  @Test
+  public void threadPoolBuilderTests() {
+
+    ThreadPool tp = ThreadPoolBuilder.instance()
+      .withMinThreads(MIN_THREADS)
+      .withMaxThreads(MAX_THREADS)
+      .withIdleTimeoutMsec(IDLE_TIMEOUT)
+      .withMaxRequestQueueSize(MAX_QUEUE_SIZE)
+      .withName(NAME)
+      .withPrefix(PREFIX)
+      .build();
+    assertNotNull(tp);
+    assertThat(tp.getClass(), is(QueuedThreadPool.class));
+    QueuedThreadPool qtp = (QueuedThreadPool) tp;
+    assertThat(qtp.getMinThreads(), is(MIN_THREADS));
+    assertThat(qtp.getMaxThreads(), is(MAX_THREADS));
+    assertThat(qtp.getIdleTimeout(), is(IDLE_TIMEOUT));
+    assertThat(qtp.getMaxAvailableThreads(), is(MAX_THREADS));
+    assertThat(qtp.getName(), is(NAME));
+  }
+
+  @Test
+  public void threadPoolBuilderWithDefaultValuesTests() {
+
+    ThreadPool tp = ThreadPoolBuilder.instance().build();
+    assertNotNull(tp);
+    assertThat(tp.getClass(), is(QueuedThreadPool.class));
+    QueuedThreadPool qtp = (QueuedThreadPool) tp;
+    assertThat(qtp.getMinThreads(), is(DEFAULT_MIN_THREADS));
+    assertThat(qtp.getMaxThreads(), is(DEFAULT_MAX_THREADS));
+    assertThat(qtp.getIdleTimeout(), is(DEFAULT_IDLE_TIMEOUT));
+    assertThat(qtp.getMaxAvailableThreads(), is(DEFAULT_MAX_THREADS));
+    assertThat(qtp.getName(), is(DEFAULT_THREAD_POOL_METRIC_NAME));
+  }
+
+  @Test
+  public void threadPoolBuilderWithRegistryTests() {
+
+    ThreadPool tp = ThreadPoolBuilder.instance().registry(registry).build();
+    assertNotNull(tp);
+    assertThat(tp.getClass(), is(InstrumentedQueuedThreadPool.class));
+    InstrumentedQueuedThreadPool qtp = (InstrumentedQueuedThreadPool) tp;
+    assertThat(qtp.getMinThreads(), is(DEFAULT_MIN_THREADS));
+    assertThat(qtp.getMaxThreads(), is(DEFAULT_MAX_THREADS));
+    assertThat(qtp.getIdleTimeout(), is(DEFAULT_IDLE_TIMEOUT));
+    assertThat(qtp.getMaxAvailableThreads(), is(DEFAULT_MAX_THREADS));
+    assertThat(qtp.getName(), is(DEFAULT_THREAD_POOL_METRIC_NAME));
+  }
+}