Add Junit tests to 'policy-core'

These tests focus on the following classes:
- PolicyContainer
- PolicySession
- PolicySessionFeatureAPI

'maven-invoker-plugin' was used to compile and install artifacts for
testing during the 'test-compile' phase. These aren't part of the
Maven project hierarchy, so they aren't visible to Sonar and SonarQube,
and they aren't deployed.

Change-Id: I67c122debbe5280f0153e7330248dc5d13c5b2c0
Issue-ID: POLICY-236
Signed-off-by: Ralph Straubs <rs8887@att.com>

2 files changed, 36 insertions, 0 deletions

diff --git a/policy-core/drools-artifact-1.1/src/main/resources/META-INF/kmodule.xml b/policy-core/drools-artifact-1.1/src/main/resources/META-INF/kmodule.xml
new file mode 100644
index 00000000..22319689
--- /dev/null
+++ b/policy-core/drools-artifact-1.1/src/main/resources/META-INF/kmodule.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kmodule xmlns="http://jboss.org/kie/6.0.0/kmodule">
+    <kbase name="rules">
+        <ksession name="session1"/>
+    </kbase>
+</kmodule>
diff --git a/policy-core/drools-artifact-1.1/src/main/resources/rules.drl b/policy-core/drools-artifact-1.1/src/main/resources/rules.drl
new file mode 100644
index 00000000..9dac208b
--- /dev/null
+++ b/policy-core/drools-artifact-1.1/src/main/resources/rules.drl
@@ -0,0 +1,30 @@
+package org.onap.policy.drools.core.test;
+
+rule "Initialization"
+	when
+	then
+	{
+	  System.out.println("Initialization rule running");
+	}
+end
+
+rule "Add elements of an int array"
+	when
+		$object : Object()
+	then
+	{
+	  if ($object instanceof int[])
+		{
+		  int[] array = (int[])($object);
+
+		  System.out.println("Received array of length " + array.length);
+		  int sum = 0;
+		  for (int i = 1 ; i < array.length ; i += 1)
+			{
+			  sum += array[i];
+			}
+		  array[0] = sum;
+		  retract($object);
+		}
+	}
+end