Improve robustness of unit testing

Issue-ID: POLICY-2630
Signed-off-by: huaxing <huaxing.jin@est.tech>
Change-Id: I6475f9272c1a770836af537c13b23e486b66ac3e

2 files changed, 5 insertions, 108 deletions

diff --git a/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/threading/ThreadingTest.java b/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/threading/ThreadingTest.java
index 23f458a67..ba6d4c627 100644
--- a/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/threading/ThreadingTest.java
+++ b/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/threading/ThreadingTest.java
@@ -71,30 +71,19 @@ public class ThreadingTest {
      * @param threadFactory the thread factory
      */
     private void testThreadFactory(final ApplicationThreadFactory threadFactory) {
-        final List<ThreadingTestThread> threadList = new ArrayList<>();
+        final List<Thread> threadList = new ArrayList<>();
 
         for (int i = 0; i < 5; i++) {
-            final ThreadingTestThread runnable = new ThreadingTestThread();
-            threadList.add(runnable);
-
-            final Thread thread = threadFactory.newThread(runnable);
+            final Thread thread = threadFactory.newThread(() -> {
+            });
+            threadList.add(thread);
             thread.start();
-
-            if (i == 4) {
-                await().atLeast(100, TimeUnit.MILLISECONDS).until(() -> thread.isAlive());
-            }
-
-        }
-
-        for (int i = 0; i < 5; i++) {
-            threadList.get(i).interrupt();
         }
 
         for (int i = 0; i < 5; i++) {
-            ThreadingTestThread thread = threadList.get(i);
+            Thread thread = threadList.get(i);
             assertTrue(thread.getName().startsWith("Apex-" + LOCAL_NAME));
             assertTrue(thread.getName().contains(":" + i));
-            assertTrue("Thread (" + i + ") count should be greater than 0 ", thread.getCounter() > 0);
         }
     }
 }
diff --git a/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/threading/ThreadingTestThread.java b/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/threading/ThreadingTestThread.java
deleted file mode 100644
index ee2212159..000000000
--- a/core/core-infrastructure/src/test/java/org/onap/policy/apex/core/infrastructure/threading/ThreadingTestThread.java
+++ /dev/null
@@ -1,92 +0,0 @@
-/*-
- * ============LICENSE_START=======================================================
- *  Copyright (C) 2016-2018 Ericsson. All rights reserved.
- *  Modifications Copyright (C) 2020 Nordix Foundation.
- * ================================================================================
- * 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.
- *
- * SPDX-License-Identifier: Apache-2.0
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.policy.apex.core.infrastructure.threading;
-
-import org.slf4j.ext.XLogger;
-import org.slf4j.ext.XLoggerFactory;
-
-/**
- * The Class ThreadingTestThread.
- *
- * @author Liam Fallon (liam.fallon@ericsson.com)
- */
-public class ThreadingTestThread implements Runnable {
-
-    // Logger for this class
-    private static final XLogger logger = XLoggerFactory.getXLogger(ThreadingTestThread.class);
-
-    private boolean interrupted = false;
-
-    private long counter = -1;
-
-    private String threadName;
-
-    /**
-     * {@inheritDoc}.
-     */
-    @Override
-    public void run() {
-        this.threadName = Thread.currentThread().getName();
-        if (logger.isDebugEnabled()) {
-            logger.debug("starting threading test thread \"" + threadName + "\" . . .");
-        }
-
-        while (!interrupted) {
-            counter++;
-            if (logger.isDebugEnabled()) {
-                logger.debug("in threading test thread \"" + threadName + "\", counter=" + counter + " . . .");
-            }
-            if (!ThreadUtilities.sleep(50)) {
-                interrupted = true;
-            }
-        }
-
-        if (logger.isDebugEnabled()) {
-            logger.debug("stopped threading test thread \"" + threadName + "\"");
-        }
-    }
-
-    /**
-     * Gets the name.
-     *
-     * @return the name
-     */
-    public String getName() {
-        return threadName;
-    }
-
-    /**
-     * Interrupt.
-     */
-    public void interrupt() {
-        interrupted = true;
-    }
-
-    /**
-     * Gets the counter.
-     *
-     * @return the counter
-     */
-    public Long getCounter() {
-        return counter;
-    }
-}