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, 46 insertions, 0 deletions

diff --git a/utils-test/src/main/java/org/onap/policy/common/utils/test/ErrorsTester.java b/utils-test/src/main/java/org/onap/policy/common/utils/test/ErrorsTester.java
new file mode 100644
index 00000000..12b48442
--- /dev/null
+++ b/utils-test/src/main/java/org/onap/policy/common/utils/test/ErrorsTester.java
@@ -0,0 +1,46 @@
+/*
+ * ============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;
+
+/**
+ * Used to test various Error subclasses. Uses reflection to identify the
+ * constructors that the subclass supports.
+ */
+public class ErrorsTester extends ThrowablesTester {
+
+	/**
+	 * Runs tests, on an Error subclass, for all of the standard constructors.
+	 * If the Error subclass does not support a given type of constructor, then
+	 * it skips that test. Does <i>not</i> throw an exception if no standard
+	 * constructors are found.
+	 * 
+	 * @param claz
+	 *            subclass to be tested
+	 * @return the number of constructors that were found/tested
+	 * @throws ConstructionError
+	 *             if the Error subclass cannot be constructed
+	 * @throws AssertionError
+	 *             if the constructed objects fail to pass various tests
+	 */
+	public <T extends Error> int testError(Class<T> claz) {
+		return testThrowable(claz);
+	}
+}