Add ExtractAppender to facilite junit tests

Added ExtractAppender to provide a way for junit tests to capture
data sent to a logger.
Changed logback.version to 1.2.3 and moved the property to the
top-level pom.
Updated license date in top-level pom.
Refactored ExceptionsText, adding ErrorsTester and
ThrowablesTester classes to reduce sonar issues.

Change-Id: Ief7d08972bf4e7037b59c2afe4b77b252f2ad60a
Issue-ID: POLICY-582
Signed-off-by: Jim Hahn <jrh3@att.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/utils-test/src/test/java/org/onap/policy/common/utils/test/ErrorsTesterTest.java b/utils-test/src/test/java/org/onap/policy/common/utils/test/ErrorsTesterTest.java
new file mode 100644
index 00000000..ae684d52
--- /dev/null
+++ b/utils-test/src/test/java/org/onap/policy/common/utils/test/ErrorsTesterTest.java
@@ -0,0 +1,77 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Integrity Monitor
+ * ================================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. 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.policy.common.utils.test;
+
+import static org.junit.Assert.assertEquals;
+
+import org.junit.Test;
+
+public class ErrorsTesterTest {
+
+	@Test
+	public void test() {
+		assertEquals(2, new ErrorsTester().testError(SimpleError.class));
+		assertEquals(5, new ErrorsTester().testError(StaticError.class));
+	}
+
+	/**
+	 * Used to test a simple success case.
+	 */
+	public static class SimpleError extends Error {
+		private static final long serialVersionUID = 1L;
+
+		public SimpleError() {
+			super();
+		}
+
+		public SimpleError(String message) {
+			super(message);
+		}
+	}
+
+	/**
+	 * Used to test the exhaustive success case.
+	 */
+	public static class StaticError extends Error {
+		private static final long serialVersionUID = 1L;
+
+		public StaticError() {
+			super();
+		}
+
+		public StaticError(String message) {
+			super(message);
+		}
+
+		public StaticError(Throwable cause) {
+			super(cause);
+		}
+
+		public StaticError(String message, Throwable cause) {
+			super(message, cause);
+		}
+
+		public StaticError(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
+			super(message, cause, enableSuppression, writableStackTrace);
+		}
+	}
+
+}